| February 2020 |
| 25th | Salcey Winter Challenge | Northants | Y | 6H | Mixed | |
| 26th | SVN Marathon Day Marathon | Kent | Y | 26.2 | Road | |
| 27th | Another Run Bites The Dust | Middlesex | Y | 6H | Road | |
| 29th | Belvoir Challenge | Leicestershire | N | 26.2 | Trail | |
| 29th | Church Lench Charity Marathon | Gloucestershire | Y | 26.5 | Trail | |
| 29th | Leap Frog Double Whammy Day 1 | Wales | Y | 7H | Mixed | |
| 29th | Leap Year Challenge | Kent | Y | 6H | Mixed | |
| 29th | Leap Year Sir titus Special | Yorkshire | N | 26.2 | Mixed | |
| 29th | Ras Dewi Sant Coastal Path Marathon | Wales | N | 26.2 | Trail | |
| 29th | Red Kite Trail | Wales | N | 26.2 | Trail | |
| 29th | South Shropshire Circular | Shropshire | N | 27.0 | Trail | |
| March 2020 |
| 1st | Barry 26.2 | Wales | Y | 26.2 | Track | |
| 1st | Betteshanger Challenge | Kent | Y | 6H | Mixed | |
| 1st | Cambridge Boundary Run | Cambs | Y | 26.2 | Mixed | |
| 1st | Cherry Blossom Run | Suffolk | Y | 6H | Mixed | |
| 1st | Hannington Hike (Runners Welcome) LDWA | Northants | N | 27.0 | Trail | |
| 1st | Meadows Marathon | Scotland | N | | | |
| 1st | Oulton Park Motor Circuit Marathon | Cheshire | Y | 26.2 | Road | |
| 1st | Saturn I Run And I Know Things Run | Berkshire | Y | 7H | Mixed | |
| 1st | Slaithwaite Slog | Yorkshire | N | 26.2 | Mixed | |
| 1st | St Davids Day Double Whammy Day 2 | Wales | Y | 7H | Mixed | |
| 1st | Steyning Stinger Marathon | W. Sussex | N | 26.2 | Trail | |
| 6th | Enigma Need For Speed - Big Cats | Bucks | Y | 26.2 | Mixed | |
| 7th | Book Day Challenge | Kent | Y | 6H | Mixed | |
| 7th | Golden Fleece Circuit | Yorkshire | N | 27.5m | Mixed | |
| 7th | Groundhog Day Marathon | Shropshire | Y | 26.2 | Trail | |
| 7th | Old Colliery Canter Barnsley | Yorkshire | N | 26.2 | Mixed | |
| 7th | Shanes Castle | Co. Antrim | Y | 26.2 | Mixed | |
| 7th | Spring Marathon | Surrey | Y | 26.2 | Mixed | |
| 7th | Thames Meander Marathon | Surrey | N | 26.2 | Mixed | |
| 8th | Batty Bimble | Hampshire | Y | 6H | Mixed | |
| 8th | Dorney Lake 7H Challenge | Berkshire | Y | 7H | Road | |
| 8th | Funky Pants Challenge | Kent | Y | 6H | Mixed | |
| 8th | Jackals Trail Marathon | Lancs | Y | 26.2 | Trail | |
| 8th | Larmer Tree Marathon | Wiltshire | N | 26.2 | Trail | |
| 8th | Wrexham Marathon | Wales | N | 26.2 | Road | |
| 8th | Ashington Community Woods 6H Challenge | Tyneside | Y | 6H | Mixed | |
| 9th | Enigma Week At The Knees 1 | Bucks | Y | 26.2 | Mixed | |
| 10th | Enigma Week At The Knees 2 | Bucks | Y | 26.2 | Mixed | |
| 11th | Enigma Week At The Knees 3 | Bucks | Y | 26.2 | Mixed | |
| 12th | Daventry Challenge | Northants | Y | 6H | Mixed | |
| 12th | Enigma Week At The Knees 4 | Bucks | Y | 26.2 | Mixed | |
| 13th | Enigma Week At The Knees 5 | Bucks | Y | 26.2 | Mixed | |
| 13th | Track Wars III | Surrey | Y | 6H | Mixed | |
| 14th | Coastal Trail Series - Sussex | Sussex | N | 27.0 | Trail | |
| 14th | Enigma Week At The Knees 6 | Bucks | Y | 26.2 | Mixed | |
| 15th | Brightlingsea Challenge Event | Essex | Y | 6H | Trail | |
| 15th | Enigma Week At The Knees 7 | Bucks | Y | 26.2 | Mixed | |
| 15th | Moleyman Marathon | Sussex | N | 26.0 | Trail | |
| 15th | Saturn Lost Runs | Berkshire | Y | 7H | Mixed | |
| 15th | Southend Pier Marathon | Essex | Y | 26.2 | Mixed | |
| 16th | Codopoly Triple Day 1 | Shropshire | Y | 26.2 | Trail | |
| 17th | Codopoly Triple Day 2 | Shropshire | Y | 26.2 | Trail | |
| 18th | Codopoly Triple Day 3 | Shropshire | Y | 26.2 | Trail | |
| 19th | Bigfoot Challenge | Northants | Y | 6H | Mixed | |
| 19th | Kings Of The Castle 4 | Berkshire | Y | 6H | Mixed | |
| 19th | TrueSapien Challenge | Northants | Y | 6H | Mixed | |
| 21st | Dark Skies Run Kielder | Northumberland | N | 26.5 | Trail | |
| 21st | Leeds and Liverpool Canal Canter | Yorkshire | N | 26.2 | Mixed | |
| 21st | Lulworth Cove Trail Marathon | Dorset | N | 46k | Trail | |
| 21st | Yorkshire Cakeathon | Yorkshire | Y | 6H | Mixed | |
| 22nd | Four Season 6H Spring Challenge | Bedfordshire | Y | 6H | Mixed | |
| 22nd | Four Seasons Spring 2020 | Wales | Y | 7H | Mixed | |
| 22nd | Medway Megalith Marathon | Kent | N | 27.5 | Mixed | |
| 22nd | Northampton Cookiethon | Northants | Y | 6H | Trail | |
| 22nd | Saturn PokeRun Fundraising Run | Surrey | Y | 7H | Mixed | |
| 22nd | Yorkshire Cookiethon | Yorkshire | Y | 6H | Mixed | |
| 25th | Swan Challenge | Warwickshire | Y | 6H | Mixed | |
| 27th | Saturn Lightside vs Darkside Midweek Run | Berkshire | Y | 7H | Mixed | |
| 27th | VOTWO Jurassic Challenge Day 1 | Dorset | N | 26.0 | Trail | |
| 28th | Charnwood Marathon | Leicestershire | N | 27.0 | Trail | |
| 28th | Gin Pit Marathon 1 | Lancs | N | 26.2 | Mixed | |
| 28th | Poets Path Potter | Gloucestershire | Y | 26.2 | Trail | |
| 28th | Saturn Time Turner *pre-London Training Run | Berkshire | Y | 7H | Mixed | |
| 28th | Temple Newsam Daffodil Dash | Yorkshire | N | 26.2 | Mixed | |
| 28th | Totally Nutty Nuts Run | Kent | Y | 6H | Mixed | |
| 28th | VOTWO Jurassic Challenge Day 2 | Dorset | N | 26.0 | Trail | |
| 29th | Blubberhouses Moors 25 LDWA Walk | Yorkshire | N | 25m | Trail | |
| 29th | Crispathon | Kent | Y | 6H | Mixed | |
| 29th | Daffodil Dawdle LDWA | Suffolk | N | 26.0 | Mixed | |
| 29th | Dorset Ooser Marathon | Dorset | N | 26.2 | Trail | |
| 29th | Gin Pit Marathon 2 | Lancs | N | 26.2 | Mixed | |
| 29th | Queen Elizabeth Spring Marathon | Hampshire | Y | 26.2 | Trail | |
| 29th | Tracktastic | Yorkshire | Y | 26.2 | Track | |
| 29th | VOTWO Jurassic Challenge Day 3 | Dorset | N | 26.0 | Trail | |
| April 2020 |
| 1st | April Fool's Day Challenge | Berkshire | Y | 6H | Mixed | |
| 4th | Black Dragon Challenge Walk | Wales | N | 26.0 | Mixed | |
| 4th | Calderdale Hike | West Yorkshire | N | 26.0 | Trail | |
| 4th | Capital Challenge Walk | London | N | 25.0 | Mixed | |
| 4th | Coastal Trail Series - Exmoor | Devon | N | 27.0 | Trail | |
| 4th | Derwent Walk | Tyneside | Y | 6H | Mixed | |
| 4th | Ecclesall Endurance | Yorkshire | Y | 12H | Mixed | |
| 4th | One Run To Rule Them All | Surrey | Y | 7H | Mixed | |
| 4th | Shropshire Way 42k Mammoth | Shropshire | N | 26.0 | Mixed | |
| 4th | South West Coast Path Challenge | Devon | N | 26.2 | Mixed | |
| 4th | The Fortitude Sword (Ten in Ten day 1) | Surrey | Y | 7H | Mixed | |
| 4th | Three Shires Challenge | Staffordshire | N | 28.0 | Trail | |
| 5th | Great Welsh Marathon | Wales | Y | 26.2 | Road | |
| 5th | Japanese Pagoda Run | Suffolk | Y | 6H | Mixed | |
| 5th | Kent Spring Marathon | Kent | Y | 26.2 | Mixed | |
| 5th | Life's A Beach | Essex | Y | 6H | Road | |
| 5th | Manchester Marathon | Lancs | N | 26.2 | Road | |
| 5th | Once Upon A Run | Surrey | Y | 7H | Mixed | |
| 5th | Peterborough Marathon | Cambs | N | 26.2 | Road | |
| 5th | Saturn Philosopher's Run *pre-London Training Run | Durham | Y | 7H | Mixed | |
| 5th | Taunton Marathon | Somerset | N | 26.2 | Road | |
| 5th | The Gauntlet Sword (Ten in Ten day 2) | Surrey | Y | 7H | Mixed | |
| 5th | Wuthering Heights Wander | West Yorkshire | N | 26.2 | Mixed | |
| 6th | PJs On The Path | Surrey | Y | 7H | Mixed | |
| 6th | The Dauntless Sword (Ten in Ten day 3) | Surrey | Y | 7H | Mixed | |
| 7th | Dinosaur Dash | Surrey | Y | 7H | Mixed | |
| 7th | The Resolute Sword (Ten in Ten day 4) | Surrey | Y | 7H | Mixed | |
| 8th | Groovy Baby | Surrey | Y | 7H | Mixed | |
| 8th | The Perseverence Sword (Ten in Ten day 5) | Surrey | Y | 7H | Mixed | |
| 9th | The Adversity Sword (Ten in Ten day 6) | Surrey | Y | 7H | Mixed | |
| 9th | Top Run 3 | Surrey | Y | 7H | Mixed | |
| 10th | Enigma Good FriDay Marathon | Bucks | Y | 26.2 | Mixed | |
| 10th | Shark Run | Surrey | Y | 7H | Mixed | |
| 10th | South Downs Loop Walk | Kent | N | 26m | Trail | |
| 10th | The Intrepid Sword (Ten in Ten day 7) | Surrey | Y | 7H | Mixed | |
| 11th | Magna Carta Marathon | Surrey | Y | 26.2 | Mixed | |
| 11th | Marmalade Mooch | Surrey | Y | 7H | Mixed | |
| 11th | Northampton Cakeathon | Northampton | Y | 6H | Mixed | |
| 11th | The Indomitable Sword (Ten in Ten day 8) | Surrey | Y | 7H | Mixed | |
| 12th | Northampton Chocathon | Northampton | Y | 6H | Mixed | |
| 12th | Samurai vs Ninja Run Day 1 | Suffolk | Y | 6H | Mixed | |
| 12th | The Bunny Hop | Worcestershire | Y | 26.2 | Road | |
| 12th | The Cyclops | Surrey | Y | 7H | Mixed | |
| 12th | The Unbreakable Sword (Ten in Ten day 9) | Surrey | Y | 7H | Mixed | |
| 13th | Enigma Easter MonDay (Reverse route) | Bucks | Y | 26.2 | Mixed | |
| 13th | Samurai vs Ninja Run Day 2 | Suffolk | Y | 6H | Mixed | |
| 13th | The Invincible Sword (Ten in Ten day 10) | Surrey | Y | 7H | Mixed | |
| 13th | X-PhoeniX | Surrey | Y | 7H | Mixed | |
| 14th | Movies Day | Surrey | Y | 7H | Mixed | |
| 14th | The Undaunted Knights Helmet (day 11 of 20) | Surrey | Y | 7H | Mixed | |
| 15th | Run To The PUB | Surrey | Y | 7H | Mixed | |
| 15th | The Staunch Knights Helmet (day 12 of 20) | Surrey | Y | 7H | Mixed | |
| 16th | Grease Lightning | Surrey | Y | 7H | Mixed | |
| 16th | The Valorous Knights Helmet (day 13 of 20) | Surrey | Y | 7H | Mixed | |
| 17th | The Hardship Knights Helmet (day 14 of 20) | Surrey | Y | 7H | Mixed | |
| 17th | Top Run | Surrey | Y | 7H | Mixed | |
| 18th | Crawley A.I.M 12H Track Race | Sussex | Y | 12H | Track | |
| 18th | Ladies Day | Yorkshire | N | 26.2 | Mixed | |
| 18th | Runderbird 1 | Surrey | Y | 7H | Mixed | |
| 18th | The Tenacious Knights Helmet (day 15 of 20) | Surrey | Y | 7H | Mixed | |
| 18th | The Yellow Raven | Surrey | Y | 26.2 | Trail | |
| 19th | Boston Marathon UK | Lincs | N | 26.2 | Road | |
| 19th | Brighton Marathon | Sussex | N | 26.2 | Road | |
| 19th | Bungay Marathon | Suffolk | Y | 26.2 | Road | |
| 19th | Connemara Marathon | Co. Galway | N | 26.2 | Road | |
| 19th | Crawley A.I.M 6H Track Race | Sussex | Y | 6H | Track | |
| 19th | Essex Walker (Runners welcome) | Essex | N | 28.6 | Mixed | |
| 19th | Longhorn Marathon | Nottinghamshire | Y | 26.2 | Mixed | |
| 19th | Mens Day | Yorkshire | N | 32m | Mixed | |
| 19th | Newport Wales Marathon | Wales | N | 26.2 | Road | |
| 19th | Runderbird 2 | Surrey | Y | 7H | Mixed | |
| 19th | The Gallant Knights Helmet (day 16 of 20) | Surrey | Y | 7H | Mixed | |
| 20th | Runderbird 3 | Surrey | Y | 7H | Mixed | |
| 20th | The Audacious Knights Helmet (day 17 of 20) | Surrey | Y | 7H | Mixed | |
| 21st | Runderbird 4 | Surrey | Y | 7H | Mixed | |
| 21st | The Insuperable Knights Helmet (day 18 of 20) | Surrey | Y | 7H | Mixed | |
| 22nd | Runderbird 5 | Surrey | Y | 7H | Mixed | |
| 22nd | The Unbelievable Knights Helmet (day 19 of 20) | Surrey | Y | 7H | Mixed | |
| 23rd | Frozen Phoenix | Surrey | Y | 7H | Mixed | |
| 23rd | St George's Day Marathon | Kent | Y | 26.2 | Mixed | |
| 23rd | The Impossible Knights Helmet (day 20 of 20) | Surrey | Y | 7H | Mixed | |
| 24th | Darnley Challenge | Kent | Y | 8H | Trail | |
| 24th | Saturn Rundercats - Anniversary | Surrey | Y | 7H | Mixed | |
| 25th | Bath Beat | Avon | N | 26.2 | Trail | |
| 25th | Coastal Trail Series - Pembrokeshire | Wales | N | 27.8 | Trail | |
| 25th | Fox 42 | Surrey | N | 26.2 | Mixed | |
| 25th | Jurassic Trail East Meets West 1 | Devon | N | 26.2 | Trail | |
| 25th | Old Colliery Canter | Yorkshire | N | 26.2 | Mixed | |
| 25th | South Cambridge Marathon | Cambs | Y | 26.2 | Road | |
| 25th | Unicorn Run | Kent | Y | 6H | Trail | |
| 26th | Blackpool Marathon | Lancs | Y | 26.2 | Road | |
| 26th | Breckland Forest Marathon | Norfolk | N | 26.2 | Mixed | |
| 26th | Druridge Bay Marathon | South Shields | Y | 26.2 | Mixed | |
| 26th | Hard CHEESE and WHINE-athon | Surrey | Y | 8H | Mixed | |
| 26th | I Can't Believe It's Not London | Wales | Y | 7H | Mixed | |
| 26th | Jurassic Trail East Meets West 2 | Devon | N | 26.2 | Trail | |
| 26th | London Marathon | London | N | 26.2 | Road | |
| 26th | London Reject Marathon | Kent | Y | 6H | Mixed | |
| 26th | Offa's Dyke Marathon | Wales | N | 26.2 | Trail | |
| 26th | Pewsey Downsaround LDWA | Wiltshire | N | 26.6 | Trail | |
| 26th | Shakespeare Marathon | Warwickshire | N | 26.2 | Road | |
| 26th | Southampton Marathon | Hampshire | N | 26.2 | Road | |
| 26th | Tissington Trail Marathon | Derbyshire | N | 26.2 | Mixed | |
| 26th | Valleys and Views | Northants | N | 26.0 | Trail | |
| 26th | Wendover Woods Marathon | Bucks | Y | 26.2 | Trail | |
| 28th | Salcey Forest Spring Challenge | Northants | Y | 6H | Mixed | |
| 30th | Ricky Races | Hertfordshire | Y | 6H | Mixed | |
| May 2020 |
| 2nd | Blackwater Marathon | Essex | Y | 26.2 | Mixed | |
| 2nd | Brecon Beacons Trail Marathon | Wales | N | 26m | Trail | |
| 2nd | Great Lakeland 3Day | Cumbria | N | ? | Trail | |
| 2nd | Ranscombe Spring Challenge | Kent | Y | 8H | Trail | |
| 2nd | Tiger vs Dragon Day 1 | Suffolk | Y | 6H | Mixed | |
| 3rd | Belfast City Marathon | Co. Antrim | N | 26.2 | Road | |
| 3rd | Limerick Marathon | Co. Limerick | N | 26.2 | Road | |
| 3rd | Milton Keynes Marathon | Bucks | N | 26.2 | Road | |
| 3rd | North Dorset Village Marathon | Dorset | N | 26.2 | Road | |
| 3rd | Pop-Up - Double The Force | Surrey | Y | 7H | Mixed | |
| 3rd | Random Ranscombe | Kent | Y | 8H | Trail | |
| 3rd | Revenge Of The Fifth Marathon - On The 3rd! | Shropshire | Y | 26.2 | Trail | |
| 3rd | Rock Pound The Bounds LDWA | Worcestershire | N | 26.0 | Trail | |
| 3rd | Saturn Goblet Of Runners | Berkshire | Y | 7H | Mixed | |
| 3rd | Stroud Trail Marathon | Gloucestershire | N | 26.2 | Trail | |
| 3rd | Three Forts Marathon | Sussex | N | 27.0 | Trail | |
| 3rd | Tiger vs Dragon Day 2 | Suffolk | Y | 6H | Mixed | |
| 4th | May The 4th Be With You | Shropshire | Y | 26.2 | Trail | |
| 6th | Bluebell Challenge | Warwickshire | Y | 6H | Mixed | |
| 6th | Confey Leixlip Rye Marathon | Co Kildare | Y | 26.2 | Road | |
| 8th | Devon Coast Challenge Day 1 | Devon | N | 26m | Mixed | |
| 8th | The Ox Marathon | Wiltshire | N | 26.2 | Trail | |
| 8th | VE Day | Kent | Y | 6H | Mixed | |
| 8th | VE Day 75th Anniversary Run | Surrey | Y | 7H | Mixed | |
| 9th | Bewl Water Marathon | Kent | Y | 26.2 | Trail | |
| 9th | Devon Coast Challenge Day 2 | Devon | N | 79m | Mixed | |
| 9th | Dulux London Revolution Marathon | Berkshire | N | 27.0 | Trail | |
| 9th | Eastbourne Trackstar Marathon | Sussex | Y | 26.2 | Track | |
| 9th | Marsden Moors Marathon Walk | Yorkshire | N | 26.0 | Mixed | |
| 9th | Ox Frolic | Wiltshire | Y | 12H | Mixed | |
| 9th | Plym Trail Marathon Spring 1 | Devon | N | 26.2 | Mixed | |
| 9th | Very British Run | Kent | Y | 6H | Mixed | |
| 10th | Cranleigh Parish Boundary Marathon | Surrey | N | 26.2 | Trail | |
| 10th | Devon Coast Challenge Day 3 | Devon | N | 79m | Mixed | |
| 10th | Excalibur Marathon | Wales | N | 26.2 | Trail | |
| 10th | Forest Of Dean Marathon | Gloucestershire | Y | 26.2 | Mixed | |
| 10th | Hardmoors 26.2 Wainstones Trail Marathon | North Yorkshire | N | 26.2 | Trail | |
| 10th | Meridian Meander | Cambs | N | 26.0 | Mixed | |
| 10th | Montane Howgills Trail 26 | Yorkshire | N | 26.0 | Trail | |
| 10th | Plym Trail Marathon Spring 2 | Devon | N | 26.2 | Mixed | |
| 10th | Race The Tide | Devon | N | 28m | Mixed | |
| 10th | Relativity Run | Kent | Y | 6H | Mixed | |
| 10th | Roche Abbey Trail Running Marathon | Yorkshire | N | 26.2 | Mixed | |
| 10th | Saturn Bohemian Run 2 | Durham | Y | 7H | Mixed | |
| 10th | Top Gear | Wales | Y | 7H | Mixed | |
| 12th | Halstead Marathon | Essex | Y | 26.2 | Road | |
| 13th | Langsett Loop | Yorkshire | N | 26.2 | Mixed | |
| 14th | Fractured Evening Marathon | Derbyshire | Y | 26.2 | Mixed | |
| 15th | Saturn Midweek Chasing Numbers Run | Berkshire | Y | 7H | Mixed | |
| 16th | Boddington Marathon | Gloucestershire | Y | 26.2 | Road | |
| 16th | Cape Wrath Challenge Marathon | Scotland | N | 26.2 | Mixed | |
| 16th | Clun Valley Walk (Runners welcome) | Shropshire | N | 26.0 | Mixed | |
| 16th | Enduroman Marathon 1 | Hampshire | N | 26.2 | Trail | |
| 16th | Holy Island Marathon | Scotland | N | 26.2 | Trail | |
| 16th | Ingleborough Marathon | Yorkshire | N | 26.2 | Trail | |
| 16th | Maverick X Snowdonia Marathon | Wales | N | 26.0 | Trail | |
| 16th | The Century | Essex | Y | 6H | Trail | |
| 16th | The MoonWalk London | London | N | 26.2 | Road | |
| 16th | The Shin Dig In The Shire | Shropshire | Y | 26.2 | Trail | |
| 16th | White Peak Marathon | Derbyshire | N | 26.2 | Trail | |
| 17th | Asics Windermere Marathon | Lake District | N | 26.2 | Road | |
| 17th | Enduroman Marathon 2 | Hampshire | N | 26.2 | Trail | |
| 17th | Exeter Marathon | Devon | N | 26.2 | Mixed | |
| 17th | Gnome Roam | Kent | Y | 6H | Mixed | |
| 17th | Imerys Trail Marathon | Cornwall | N | 26.2 | Trail | |
| 17th | Leaden Boot Challenge LDWA | Derbyshire | N | 26.2 | Mixed | |
| 17th | Mammoth Marathon | Norfolk | N | 26.2 | Road | |
| 17th | Richmond Park Trail Marathon | Surrey | Y | 26.2 | Trail | |
| 17th | Worcester Marathon | Worcestershire | N | 26.2 | Trail | |
| 20th | Seas The Day | Essex | Y | 6H | Road | |
| 21st | Forest and Hills | Bucks | Y | 6H | Mixed | |
| 21st | Hafren Ultra | Wales | N | 27m | Trail | |
| 23rd | Moreton Marathon | Dorset | Y | 26.2 | Trail | |
| 23rd | Olympic Run | Northampton | Y | 6H | Mixed | |
| 24th | Edinburgh Marathon | Scotland | N | 26.2 | Road | |
| 24th | Liverpool Marathon | Merseyside | N | 26.2 | Road | |
| 24th | Lough Castle Marathon | Co. Galway | Y | 26.2 | Road | |
| 24th | Pen Llyn Coastal Trail Marathon | Wales | N | 26.2 | Trail | |
| 24th | Plumpton Race Course Marathon | Sussex | Y | 26.2 | Trail | |
| 24th | SVN Charity Challenge | Northampton | Y | 6H | Mixed | |
| 24th | Unicorn Frolic | Dorset | N | 12H | Trail | |
| 25th | Lucky Dip Challenge | Northampton | Y | 6H | Mixed | |
| 29th | Loch Ness 360� Marathon Day 1 | Scotland | N | 26.2m | Trail | |
| 29th | Tidal Triple Series Day 1 | Cumbria | Y | 26.2 | Mixed | |
| 30th | Loch Ness 360� Marathon Day 2 | Scotland | N | 26.2m | Trail | |
| 30th | ROC24 | Suffolk | Y | 24H | Trail | |
| 30th | SVN Viking 100 6H Race | Kent | Y | 6H | Mixed | |
| 30th | Tidal Triple Series Day 2 | Cumbria | Y | 26.2 | Mixed | |
| 30th | Vikings Challenge | Kent | Y | 24H | Mixed | |
| 31st | Walled City Marathon | Co. Derry | N | 26.2 | Road | |
| 31st | Cork City Marathon | Co. Cork | N | 26.2 | Road | |
| 31st | Hellstone Marathon | Dorset | N | 26.2 | Trail | |
| 31st | Loch Ness 360� Marathon Day 3 | Scotland | N | 26.2 | Trail | |
| 31st | One Run To Rule Them All - The Elven Red Run | Surrey | Y | 6H | Mixed | |
| 31st | Saturn Yellow Brick Run | Berkshire | Y | 7H | Mixed | |
| 31st | Tidal Triple Series Day 3 | Cumbria | Y | 26.2 | Mixed | |
| June 2020 |
| 5th | The Hot Runner 10in10 day 1 | Worcestershire | Y | 26.2 | Road | |
| 6th | Calderdale Way Ultra Short | West Yorkshire | N | 28m | Trail | |
| 6th | Farthingstone Foot Fest | Northants | N | 26.0 | Trail | |
| 6th | God of Thunder | Surrey | Y | 7H | Mixed | |
| 6th | Great Strides Running Event | Surrey | N | 40k | Mixed | |
| 6th | Great Strides Walking Event | Surrey | N | 40k | Mixed | |
| 6th | RatRace Runstock | Northants | Y | 50k | Mixed | |
| 6th | The Hot Runner 10in10 day 2 | Worcestershire | Y | 26.2 | Road | |
| 7th | Bonsai Run | Suffolk | Y | 6H | Mixed | |
| 7th | Coniston Marathon | Lake District | N | 26.2 | Trail | |
| 7th | Four Seasons Summer | Wales | Y | 7H | Mixed | |
| 7th | Green 26.2 Mile Prison Run | Somerset | Y | 26.2 | Road | |
| 7th | Hardmoors 26.2 White Horse Trail Marathon | North Yorkshire | N | 26.2 | Trail | |
| 7th | Huddersfield Marathon | Yorkshire | N | 26.2 | Road | |
| 7th | River Meon Marathon | Hampshire | N | 26.2 | Trail | |
| 7th | Stour Valley Marathon | Suffolk | N | 27.0 | Trail | |
| 7th | Stow Maries Trail Challenge | Essex | Y | 6H | Trail | |
| 7th | Strathearn Marathon | Perthshire | N | 26.2 | Road | |
| 7th | The Hot Runner 10in10 day 3 | Worcestershire | Y | 26.2 | Road | |
| 7th | Wrath of Poseidon | Surrey | Y | 7H | Mixed | |
| 8th | Saturn Midweek Chasing Numbers Run | Berkshire | Y | 7H | Mixed | |
| 8th | The Hot Runner 10in10 day 4 | Worcestershire | Y | 26.2 | Road | |
| 8th | The Hot Runner 7in7 day 1 | Worcestershire | Y | 26.2 | Road | |
| 9th | Red Kite Challenge | Northants | Y | 6H | Mixed | |
| 9th | The Hot Runner 10in10 day 5 | Worcestershire | Y | 26.2 | Road | |
| 9th | The Hot Runner 7in7 day 2 | Worcestershire | Y | 26.2 | Road | |
| 10th | Mourne Way Marathon | Co. Down | N | 26.2 | Trail | |
| 10th | The Hot Runner 10in10 day 6 | Worcestershire | Y | 26.2 | Road | |
| 10th | The Hot Runner 7in7 day 3 | Worcestershire | Y | 26.2 | Road | |
| 11th | The Hot Runner 10in10 day 7 | Worcestershire | Y | 26.2 | Road | |
| 11th | The Hot Runner 7in7 day 4 | Worcestershire | Y | 26.2 | Road | |
| 12th | Endure 24 Reading | Berkshire | Y | 24H | Mixed | |
| 12th | The Hot Runner 10in10 day 8 | Worcestershire | Y | 26.2 | Road | |
| 12th | The Hot Runner 7in7 day 5 | Worcestershire | Y | 26.2 | Road | |
| 13th | Canal Canter Summer Extravaganza Leeds | Yorkshire | N | 26.2 | Mixed | |
| 13th | Divorce Day Fundraiser | Shropshire | Y | 26.2 | Mixed | |
| 13th | Enigma Guitar Hero Marathon 1 | Bucks | Y | 26.2 | Mixed | |
| 13th | Great Strides Walking Event | Peak District | N | 40k | Mixed | |
| 13th | Ladybower Trail Marathon | Derbyshire | N | 26.2 | Trail | |
| 13th | Mega Challenge | Kent | Y | 6H | Mixed | |
| 13th | MK24 Midsummer Run | Bucks | Y | 24H | Mixed | |
| 13th | Mourne Way Marathon | Co. Down | N | 26.2 | Trail | |
| 13th | Suffolk Trail Running Festival 12H | Suffolk | Y | 12H | Mixed | |
| 13th | Suffolk Trail Running Festival 24H | Suffolk | Y | 24H | Mixed | |
| 13th | The Hot Runner 10in10 day 9 | Worcestershire | Y | 26.2 | Road | |
| 13th | The Hot Runner 7in7 day 6 | Worcestershire | Y | 26.2 | Road | |
| 14th | Cheddar Gorge Marathon | Avon | Y | 26.2 | Trail | |
| 14th | Cheltenham Challenge | Gloucestershire | N | 26.2 | Mixed | |
| 14th | Enigma Guitar Hero Marathon 2 | Bucks | Y | 26.2 | Mixed | |
| 14th | Jeskyns Challenge | Kent | Y | 6H | Trail | |
| 14th | Littledown Marathon | Dorset | Y | 26.2 | Trail | |
| 14th | Poppyline Marathon | Norfolk | N | 26.2 | Mixed | |
| 14th | The Hot Runner 10in10 day 10 | Worcestershire | Y | 26.2 | Road | |
| 14th | The Hot Runner 7in7 day 7 | Worcestershire | Y | 26.2 | Road | |
| 20th | Baslow Boot Bash | Derbyshire | N | 26.0 | Mixed | |
| 20th | Black Mountains Marathon | Wales | N | 28.5m | Trail | |
| 20th | Cartoon Capers Oh Crumbs afternoon race | Essex | Y | 6H | Road | |
| 20th | Cartoon Capers Wilmaaaaaaa morning race | Essex | Y | 6H | Road | |
| 20th | Dartford Midnight Marathon | Kent | Y | 26.2 | Road | |
| 20th | EAMS 24H Running Challenge | Co. Antrim | Y | 24H | Mixed | |
| 20th | Giants Head Marathon | Dorset | N | 26.2 | Trail | |
| 20th | Gibside Marathon | Tyneside | Y | 26.2 | Trail | |
| 20th | Harp 24 | Essex | Y | 24H | Mixed | |
| 20th | Heldon Hill Challenge Walk & Sunset Beach BBQ | Scotland | N | 25m | Mixed | |
| 20th | Langport Festival Day 1 | Somerset | N | 26.0 | Mixed | |
| 20th | Legacy Loop Ultra | Yorkshire | Y | 12H | Mixed | |
| 20th | Malvern Midsummer Marathon LDWA | Worcestershire | N | 26.2 | Trail | |
| 20th | Marston 24H Challenge | Bedfordshire | Y | 24H | Mixed | |
| 20th | Mynd Drover LDWA | Shropshire | N | 26m | Mixed | |
| 20th | Race To The King Day 1 | Sussex | N | 26.5 | Trail | |
| 20th | Rotary Across Wales Walk | Wales | N | 26m | Trail | |
| 20th | Saltire 12 | Scotland | Y | 12H | Trail | |
| 20th | Saltire 24 | Scotland | Y | 24H | Trail | |
| 20th | Solstice 24 | Scotland | Y | 24H | Mixed | |
| 20th | Trail Marathon Wales | Wales | N | 26.2 | Trail | |
| 20th | Tsunami Challenge | Devon | N | 26.0 | Trail | |
| 20th | Ultra Trail Scotland | Scotland | N | 45k | Mixed | |
| 20th | Viking Marathon | Co. Waterford | N | 26.2 | Road | |
| 21st | Bates Green Gallop | East Sussex | Y | 6H | Trail | |
| 21st | Cholmondeley Castle | Cheshire | Y | 26.2 | Mixed | |
| 21st | Glorious Gargrave | North Yorkshire | N | 26.2 | Mixed | |
| 21st | Hampshire Hoppit Trail Marathon | Hampshire | N | 26.2 | Trail | |
| 21st | Langport Festival Day 2 | Somerset | N | 26.0 | Mixed | |
| 21st | Purbeck Plod LDWA (Runners welcome) | Dorset | N | 25m | Mixed | |
| 21st | Race To The King Day 2 | Sussex | N | 25.9 | Trail | |
| 22nd | Evening Marathon Madness Day 1 | Sussex | Y | 26.2 | Mixed | |
| 23rd | Evening Marathon Madness Day 2 | Sussex | Y | 26.2 | Mixed | |
| 24th | Evening Marathon Madness Day 3 | Sussex | Y | 26.2 | Mixed | |
| 24th | Temple Newsam Leeds | Yorkshire | N | 26.2 | Mixed | |
| 25th | Evening Marathon Madness Day 4 | Sussex | Y | 26.2 | Mixed | |
| 25th | GBC Summer 10in10 Day 1 | Suffolk | N | 26.2 | Mixed | |
| 26th | Evening Marathon Madness Day 5 | Sussex | Y | 26.2 | Mixed | |
| 26th | GBC Summer 10in10 Day 2 | Suffolk | N | 26.2 | Mixed | |
| 26th | Panda Bear Challenge | Warwickshire | Y | 6H | Mixed | |
| 27th | Energia24 | Co. Antrim | Y | 24H | Road | |
| 27th | Evening Marathon Madness Day 6 | Sussex | Y | 26.2 | Mixed | |
| 27th | GBC Summer 10in10 Day 3 | Suffolk | N | 26.2 | Mixed | |
| 27th | Great Strides Running Event | Wales | N | 40k | Mixed | |
| 27th | Great Strides Walking Event | Wales | N | 40k | Mixed | |
| 27th | Midnight Mountain Marathon | Wales | N | 26.2 | Trail | |
| 27th | Ranscombe Summer Challenge | Kent | Y | 8H | Mixed | |
| 27th | Snickerthon | Staffordshire | Y | 26.2 | Mixed | |
| 27th | Summer Pateley Pie n Pint | Yorkshire | N | 26.2 | Mixed | |
| 27th | The Red Raven | Surrey | N | 26.2 | Trail | |
| 28th | Evening Marathon Madness Day 7 | Sussex | Y | 26.2 | Mixed | |
| 28th | GBC Summer 10in10 Day 4 | Suffolk | N | 26.2 | Mixed | |
| 28th | Halifax Marathon | Yorkshire | Y | 26.2 | Mixed | |
| 28th | Herts Hobble LDWA | Hertfordshire | N | 26.5 | Trail | |
| 28th | North Devon Marathon | Devon | N | 26.2 | Trail | |
| 28th | Teddy Bears' Picnic | Kent | Y | 8H | Mixed | |
| 29th | GBC Summer 10in10 Day 5 | Suffolk | N | 26.2 | Mixed | |
| 30th | GBC Summer 10in10 Day 6 | Suffolk | N | 26.2 | Mixed | |
| July 2020 |
| 1st | GBC Summer 10in10 Day 7 | Suffolk | N | 26.2 | Mixed | |
| 2nd | GBC Summer 10in10 Day 8 | Suffolk | N | 26.2 | Mixed | |
| 3rd | Endure 24 Leeds | Yorkshire | Y | 24H | Mixed | |
| 3rd | GBC Summer 10in10 Day 9 | Suffolk | N | 26.2 | Mixed | |
| 3rd | Hope 24 | Devon | Y | 24H | Mixed | |
| 3rd | July The Turd | Shropshire | Y | 26.2 | Mixed | |
| 4th | Enigma Shaken Not Stirred Day 1 | Bucks | Y | 26.2 | Mixed | |
| 4th | GBC Summer 10in10 Day 10 | Suffolk | N | 26.2 | Mixed | |
| 4th | Great Strides Running Event | Yorkshire | N | 40k | Mixed | |
| 4th | Great Strides Walking Event | Yorkshire | N | 40k | Mixed | |
| 4th | Hamsterley Forest Marathon | Tyneside | Y | 26.2 | Mixed | |
| 4th | Independence Day | Shropshire | Y | 26.0 | Mixed | |
| 4th | Independence Day 6H Challenge | Co. Antrim | Y | 6H | Mixed | |
| 5th | Enigma Shaken Not Stirred Day 2 | Bucks | Y | 26.2 | Mixed | |
| 5th | Hever Castle Marathon | Kent | Y | 26.2 | Mixed | |
| 5th | It's Rayne-ing Medals | Essex | Y | 7H | Trail | |
| 5th | North Downs Way Marathon | Surrey | N | 26.2 | Mixed | |
| 5th | Saturn Run To Infinity And Beyond 2 | Berkshire | Y | 7H | Mixed | |
| 5th | Scafell Pike Trail Marathon | Cumbria | N | 26m | Trail | |
| 5th | St Magnus Marathon | Scotland | N | 26.2 | Mixed | |
| 5th | Stoke On Trent Festival Of Running | Staffordshire | N | 26.2 | Road | |
| 5th | Wales Marathon | Wales | N | 26.2 | Road | |
| 8th | Salcey Forest Summer Challenge | Northants | Y | 6H | Mixed | |
| 9th | Sundae Challenge | Berkshire | Y | 6H | Mixed | |
| 11th | Castleshaw 24 | West Yorkshire | Y | 24H | Mixed | |
| 11th | Crafty Fox | Warwickshire | Y | 26.2 | Mixed | |
| 11th | Hallow 12 Parish Challenge (LDWA) | Worcestershire | N | 26.0 | Mixed | |
| 11th | Piece Of Cake Trail Marathon | Shropshire | N | 26.2 | Mixed | |
| 11th | Shere 42k Multi-Terrain | Surrey | Y | 26.2 | Mixed | |
| 11th | The Island Marathon: Interstellar Edition | Cornwall | N | 6H | Mixed | |
| 11th | TrailBlaster 12Hour | Lancashire | Y | 12H | Trail | |
| 11th | TrailBlaster 6Hour | Lancashire | Y | 6H | Trail | |
| 12th | Four Season 6H Summer Challenge | Bedfordshire | Y | 6H | Mixed | |
| 12th | 'Hey It's Up Helmsley' Trail Race | North Yorkshire | Y | 26.2 | Trail | |
| 12th | Scott Snowdonia Marathon | Wales | N | 26.2 | Trail | |
| 17th | Conti Lightning Run | Norwich | Y | 24H | Trail | |
| 17th | Top Run 2 | Surrey | Y | 6H | Mixed | |
| 18th | Man vs Lakes | Cumbria | N | 28.0 | Trail | |
| 18th | Maverick Ultra Peaks | Derbyshire | N | 28m | Trail | |
| 18th | Monks Trod Pilgrimage Walk | Wales | N | 25m | Trail | |
| 18th | One Run To Rule Them All - The Elven White Run | Surrey | Y | 6H | Mixed | |
| 18th | Race To The Tower 1 | Gloucestershire | N | 26.2 | Trail | |
| 18th | Sir Titus Summer Trot Saltaire | West Yorkshire | N | 26.2 | Mixed | |
| 18th | Spitfire Scramble | London | Y | 24H | Mixed | |
| 19th | Exe Estuary Marathon | Devon | N | 26.2 | Mixed | |
| 19th | Fairlands Valley Challenge | Herts | N | 26.2 | Mixed | |
| 19th | Meet The Wee Minister Marathon | Scotland | N | 26.2 | Mixed | |
| 19th | Phoenix EXPLORER Run | Surrey | Y | 7H | Mixed | |
| 19th | Race To The Tower 2 | Gloucestershire | N | 26.2 | Trail | |
| 19th | Saturn Runners Of The Phoenix | Berkshire | Y | 7H | Mixed | |
| 19th | The Wild One Multi Lap Marathon | Worcestershire | Y | 26.2 | Mixed | |
| 19th | Why Not Run? Challenge Event | Hampshire | Y | 6H | Trail | |
| 24th | Cider Session | Dorset | Y | 8H | Mixed | |
| 25th | Cider Frolic Marathon | Dorset | Y | 12H | Mixed | |
| 25th | Denholme Doddle LDWA | West Yorkshire | N | 27.0 | Trail | |
| 25th | Enigma Need For Speed Day 1 | Bucks | Y | 26.2 | Mixed | |
| 25th | Manvers Dusk till Dawn | South Yorkshire | Y | 12H | Mixed | |
| 25th | Saturn Chamber Of Runs | Northumberland | Y | 7H | Mixed | |
| 26th | Are You Shore | Essex | Y | 6H | Trail | |
| 26th | Bath Off Road Marathon | Avon | N | 26.2 | Trail | |
| 26th | Beast of Bath Marathon | Avon | N | 26.2 | Mixed | |
| 26th | Castle Howard | Yorkshire | Y | 26.2 | Trail | |
| 26th | Enigma Need For Speed Day 2 | Bucks | Y | 26.2 | Mixed | |
| 26th | Roding Around Marathon | Essex | N | 26.2 | Trail | |
| 26th | Solway Coast Marathon | Cumbria | N | 26.2 | Mixed | |
| 27th | Station to Station Marathon | Hampshire | N | 26.2 | Mixed | |
| August 2020 |
| 1st | Celtic Warrior Marathon Day 1 | Co. Westmeath | N | 26.2 | Road | |
| 1st | CYBI Coastal Marathon | Wales | N | 26.2 | Trail | |
| 1st | Elsecar Skelter LDWA | Yorkshire | N | 27.0 | Mixed | |
| 1st | Railway Ultra 28 | Shropshire | Y | 28.0 | Mixed | |
| 1st | Something Wild Trail Marathon | Devon | N | 26.0 | Mixed | |
| 1st | South Downs Midnight Marathon | Hampshire | N | 26.2 | Trail | |
| 1st | Summer Marathon | Surrey | Y | 26.2 | Trail | |
| 1st | Sumo & Geisha Weekend Day 1 | Suffolk | Y | 6H | Mixed | |
| 1st | Sumo Run | Suffolk | Y | 6H | Mixed | |
| 1st | Twilight Chase | East Sussex | Y | 6H | Road | |
| 1st | Twilight Marathon | Essex | Y | 26.2 | Road | |
| 2nd | Brett Owler Marathon | Kent | Y | 26.2 | Trail | |
| 2nd | Celtic Warrior Marathon Day 2 | Co. Westmeath | N | 26.2 | Road | |
| 2nd | Chislehurst Marathon | London | Y | 26.2 | Mixed | |
| 2nd | Dovedale Dipper | Derbyshire | N | 27.0 | Mixed | |
| 2nd | Hardmoors 26.2 Farndale Trail Marathon | North Yorkshire | N | 26.2 | Trail | |
| 2nd | Owler Marathon | Kent | Y | 26.2 | Trail | |
| 2nd | Sumo & Geisha Weekend Day 2 | Suffolk | Y | 6H | Mixed | |
| 2nd | Vanguard Way Marathon | Surrey | N | 26.2 | Trail | |
| 3rd | Celtic Warrior Marathon Day 3 | Co. Westmeath | N | 26.2 | Road | |
| 7th | Bring Out Your Dead 24 | Cornwall | Y | 24H | Trail | |
| 8th | East Cork Marathon | Co. Cork | N | 26.2 | Road | |
| 8th | Sublime 12H Night Race | Northants | Y | 12H | Mixed | |
| 8th | Sublime Twenty4 Weekend | Northants | Y | 24H | Mixed | |
| 8th | Thames Meander Marathon | Surrey | N | 26.2 | Mixed | |
| 8th | X From Enigma Running Day 1 | Bucks | Y | 26.2 | Mixed | |
| 9th | Isle Of Man Marathon | IOM | Y | 26.2 | Mixed | |
| 9th | Rocky Horror Picture Show Tribute | Shropshire | Y | 26.2 | Road | |
| 9th | Salisbury 5-4-3-2-1 | Hampshire | N | 26.2 | Mixed | |
| 9th | X From Enigma Running Day 2 | Bucks | Y | 26.2 | Mixed | |
| 12th | Shipton Star LDWA (Runners welcome) | Wiltshire | N | 25m | Trail | |
| 13th | Quadrathon Marathon Challenge Day 1 | Co. Donegal | N | 26.2 | Road | |
| 14th | Hell On The Humber (HOTH) | Yorkshire | Y | 24H | Mixed | |
| 14th | Quadrathon Marathon Challenge Day 2 | Co. Donegal | N | 26.2 | Road | |
| 15th | Dragon Challenge Run | Northants | Y | 6H | Mixed | |
| 15th | Quadrathon Marathon Challenge Day 3 | Co. Donegal | N | 26.2 | Road | |
| 15th | Run To The Castle | Wales | N | 26.2 | Trail | |
| 15th | Wirral 24H | Merseyside | Y | 24H | Mixed | |
| 16th | Bath Two Tunnels Marathon | Avon | Y | 26.0 | Trail | |
| 16th | Gnome Roam II | Northants | Y | 6H | Mixed | |
| 16th | Leila's Run | Herts | Y | 26.2 | Road | |
| 16th | Quadrathon Marathon Challenge Day 4 | Co. Donegal | N | 26.2 | Road | |
| 22nd | Plym Summer Trail Marathon Day 1 | Devon | N | 26.2 | Mixed | |
| 22nd | Quadrathon Marathon Challenge Day 4 | Devon | N | 26.2 | Mixed | |
| 22nd | SG-100 | Surrey | Y | 7H | Mixed | |
| 22nd | SVN Twenty Challenges Day 1 | Kent | Y | 6H | Mixed | |
| 23rd | Plym Summer Trail Marathon Day 2 | Devon | N | 26.2 | Mixed | |
| 23rd | SVN Twenty Challenges Day 2 | Kent | Y | 6H | Mixed | |
| 24th | SVN Twenty Challenges Day 3 | Kent | Y | 6H | Mixed | |
| 25th | SVN Twenty Challenges Day 4 | Kent | Y | 6H | Mixed | |
| 26th | SVN Twenty Challenges Day 5 | Kent | Y | 6H | Mixed | |
| 27th | SVN Twenty Challenges Day 6 | Kent | Y | 6H | Mixed | |
| 28th | SVN Twenty Challenges Day 7 | Kent | Y | 6H | Mixed | |
| 29th | 33rd Smugglers' Trod LDWA | North Yorkshire | N | 25.0 | Mixed | |
| 29th | Dartmoor Highground Marathon | Devon | N | 26.5 | Trail | |
| 29th | Dartmoor Trail Marathon | Dartmoor | N | 26.2 | Trail | |
| 29th | OutRun 12H | Essex | Y | 12H | Trail | |
| 29th | SVN Twenty Challenges Day 8 | Kent | Y | 6H | Mixed | |
| 30th | Longford Marathon | Co. Longford | N | 26.2 | Road | |
| 30th | Saturn Time Turner *pre-GNR Training Run | Durham | Y | 7H | Mixed | |
| 30th | SVN Twenty Challenges Day 9 | Kent | Y | 6H | Mixed | |
| 30th | Woldingham Marathon | Surrey | N | 26.2 | Trail | |
| 31st | SVN Twenty Challenges Day 10 | Kent | Y | 6H | Mixed | |
| September 2020 |
| 1st | SVN Twenty Challenges Day 11 | Kent | Y | 6H | Mixed | |
| 2nd | SVN Twenty Challenges Day 12 | Kent | Y | 6H | Mixed | |
| 3rd | SVN Twenty Challenges Day 13 | Kent | Y | 6H | Mixed | |
| 4th | Glenmore 24 | Scotland | Y | 24H | Trail | |
| 4th | SVN Twenty Challenges Day 14 | Kent | Y | 6H | Mixed | |
| 5th | Wimpole 24 | Cambs | Y | 24H | Mixed | |
| 5th | Dartmoor Trail Running Challenge | Devon | N | 42k | Trail | |
| 5th | Dingle Marathon | Co. Kerry | N | 26.2 | Road | |
| 5th | Joust 24 Hour Race | Worcestershire | Y | 24H | Mixed | |
| 5th | Karate Kid vs Cobra Kai Day 1 | Suffolk | Y | 6H | Mixed | |
| 5th | Northumberland Coast Marathon | Northumberland | N | 26.2 | Mixed | |
| 5th | St Albans Stampede | Hertfordshire | Y | 12H | Trail | |
| 5th | SVN Twenty Challenges Day 15 | Kent | Y | 6H | Mixed | |
| 5th | The Dare 12 | Wales | Y | 12H | Mixed | |
| 5th | THHN City To Sea | Devon | N | 26.5m | Mixed | |
| 6th | Andover Trail Marathon | Hampshire | N | 26.2 | Mixed | |
| 6th | Bacchus Marathon | Surrey | Y | 26.2 | Mixed | |
| 6th | Dunstable Downs Marathon | Beds | N | 27.0 | Trail | |
| 6th | Glencoe Marathon | Scotland | N | 26.2 | Trail | |
| 6th | Hornsea Trail Running Festival | Yorkshire | N | 26.2 | Trail | |
| 6th | Karate Kid vs Cobra Kai Day 2 | Suffolk | Y | 6H | Mixed | |
| 6th | SVN Twenty Challenges Day 16 | Kent | Y | 6H | Mixed | |
| 7th | SVN Twenty Challenges Day 17 | Kent | Y | 6H | Mixed | |
| 8th | SVN Twenty Challenges Day 18 | Kent | Y | 6H | Mixed | |
| 9th | SVN Twenty Challenges Day 19 | Kent | Y | 6H | Mixed | |
| 10th | SVN Twenty Challenges Day 20 | Kent | Y | 6H | Mixed | |
| 11th | Enigma Need For Speedboat Day 1 | Bucks | Y | 26.2 | Mixed | |
| 12th | Battle Of The Borders Day 1 | Shropshire | Y | 26.2 | Mixed | |
| 12th | Black Hugin Challenge | Kent | Y | 6H | Mixed | |
| 12th | Enigma Need For Speedboat Day 2 | Bucks | Y | 26.2 | Mixed | |
| 12th | Kilkenny Medieval Marathon | Co. Kilkenny | N | 26.2 | Road | |
| 12th | Rewell Wood Marathon | West Sussex | Y | 26.2 | Trail | |
| 13th | Battle Of The Borders Day 2 | Shropshire | Y | 26.2 | Mixed | |
| 13th | Black Sheep 6H Challenge Masham | North Yorkshire | Y | 6H | Trail | |
| 13th | Enigma Need For Speedboat Day 3 | Bucks | Y | 26.2 | Mixed | |
| 13th | Farnham Pilgrim Marathon | Surrey | Y | 26.2 | Mixed | |
| 13th | Five Rivers Challenge | Hertfordshire | N | 26.2 | Mixed | |
| 13th | Forest and Moors Marathon | Yorkshire | N | 26.2 | Trail | |
| 13th | Four Seasons Autumn 2020 | Wales | Y | 7H | Mixed | |
| 13th | Islay Marathon | Scotland | N | 26.2 | Mixed | |
| 13th | It's Strictly Running | Surrey | Y | 7H | Mixed | |
| 13th | New Forest Marathon | Hampshire | N | 26.2 | Mixed | |
| 13th | Ouse Valley Way Marathon | Cambs | N | 26.2 | Mixed | |
| 13th | Ponton Plod | Lincs | N | 27.0 | Mixed | |
| 13th | Richmond Marathon | Surrey | N | 26.2 | Mixed | |
| 13th | The Yorkshireman | Yorkshire | N | 26.2 | Trail | |
| 19th | Cotswold Challenge LDWA | Gloucestershire | N | 26.4 | Mixed | |
| 19th | Dawn to Dusk Duncombe Park Challenge | Yorkshire | Y | 13H | Mixed | |
| 19th | Equinox 24Hour Run | Leics | Y | 24H | Mixed | |
| 19th | Heart Of England Forest Marathon | Warwickshire | N | 26.2 | Trail | |
| 19th | Nutty Races at SWOF | Dorset | Y | 8H | Mixed | |
| 19th | Purbeck Marathon Day 1 | Dorset | N | 27.0 | Mixed | |
| 19th | Spartan Scotland Sprint (Obstacles) | Scotland | N | 26.0 | Mixed | |
| 19th | Turpin Challenge | Yorkshire | Y | 6H | Mixed | |
| 19th | Yabba Dabba Doo | Shropshire | Y | 26.2 | Mixed | |
| 19th | Yarborough 24H Track Race | Lincolnshire | Y | 24H | Track | |
| 20th | Hullavington Marathon | Wiltshire | N | 26.2 | Road | |
| 20th | Purbeck Marathon Day 2 | Dorset | N | 27.0 | Mixed | |
| 20th | Rutland Marathon | Leicestershire | N | 26.2 | Mixed | |
| 22nd | Green Chain Marathon | Surrey | Y | 26.2 | Trail | |
| 23rd | Cardiac Challenge | Kent | Y | 6H | Trail | |
| 23rd | Salcey Forest Autumn Challenge | Northants | Y | 6H | Mixed | |
| 24th | Causeway Coast Marathon | Co. Antrim | N | 26.2 | Mixed | |
| 26th | Guardians Of The CODRC | Shropshire | Y | 26.2 | Mixed | |
| 26th | Jurassic Coast Running Festival | Dorset | Y | 24H | Mixed | |
| 26th | Norfolk Coastal Marathon | Norfolk | N | 26.2 | Trail | |
| 26th | Northern Jumble | West Yorkshire | N | 26.2 | Mixed | |
| 26th | Roche Abbey Trail Autumn Running Festival | Yorkshire | N | 26.2 | Mixed | |
| 26th | Self Transcendence 24hour London | London | Y | 24H | Track | |
| 26th | Snowdon Trail Marathon | Wales | N | 27.0 | Trail | |
| 26th | The Gold Raven | Surrey | N | 26.2 | Trail | |
| 26th | Tolkien Challenge | Kent | Y | 6H | Mixed | |
| 27th | Barnstaple Marathon | Devon | N | 26.2 | Road | |
| 27th | Battle of Britain Challenge | Kent | Y | 6H | Mixed | |
| 27th | Conwy Marathon | Wales | N | 26.2 | Road | |
| 27th | Hever Castle Marathon | Kent | Y | 26.2 | Mixed | |
| 27th | Hull Marathon | Yorkshire | N | 26.2 | Road | |
| 27th | Surrey Hills Challenge | Surrey | N | 26.2 | Mixed | |
| October 2020 |
| 3rd | Coastal Trail Series - North York Moors | Yorkshire | N | 26.2 | Trail | |
| 3rd | Galway Bay Marathon | Co. Galway | Y | 26.2 | Road | |
| 3rd | Phoenix Wedding Run | Surrey | Y | 6H | Mixed | |
| 3rd | Tigger Bounce-athon | Kent | Y | 6H | Mixed | |
| 3rd | Zen Weekend Day 1 | Suffolk | Y | 6H | Mixed | |
| 4th | Chester Marathon | Cheshire | N | 26.2 | Road | |
| 4th | Clarendon Marathon | Wiltshire | N | 26.2 | Trail | |
| 4th | Isle Of Wight Marathon | Isle Of Wight | N | 26.2 | Road | |
| 4th | Jersey Marathon | Jersey | N | 26.2 | Mixed | |
| 4th | Kielder Marathon | Northumberland | N | 26.2 | Trail | |
| 4th | Loch Ness | Scotland | N | 26.2 | Road | |
| 4th | Winnie The Pooh Challenge | Kent | Y | 6H | Mixed | |
| 4th | Wylye Valley Kanter LDWA (Runners welcome) | Wiltshire | N | 25m | Trail | |
| 4th | Zen Weekend Day 2 | Suffolk | Y | 6H | Mixed | |
| 9th | Panther Takes The Hindmost | Yorkshire | Y | 26.2 | Mixed | |
| 9th | VOTWO Atlantic Coast Challenge Day 1 | Cornwall | N | 26.0 | Trail | |
| 10th | Hangers Heroes | Dorset | N | 26.2 | Mixed | |
| 10th | VOTWO Atlantic Coast Challenge Day 2 | Cornwall | N | 26.0 | Trail | |
| 11th | Burton Bradstock Marathon | Dorset | Y | 26.2 | Mixed | |
| 11th | Eden Project Marathon | Cornwall | N | 26.2 | Mixed | |
| 11th | Hardmoors 26.2 Fryupdale Trail Marathon | North Yorkshire | N | 26.2 | Trail | |
| 11th | Leicester Marathon | Leicestershire | N | 26.2 | Road | |
| 11th | Stirling Marathon | Scotland | N | 26.2 | Road | |
| 11th | VOTWO Atlantic Coast Challenge Day 3 | Cornwall | N | 26.0 | Trail | |
| 13th | Grizzly Bear Challenge | Warwickshire | Y | 6H | Mixed | |
| 17th | Dave Lewis Challenge | Notts | N | 27.5m | Mixed | |
| 17th | Dramathon | Scotland | N | 26.2 | Mixed | |
| 17th | Kings Forest Trail Marathon | Suffolk | Y | 26.2 | Trail | |
| 17th | Plym Autumn Trail Marathon Day 1 | Devon | N | 26.2 | Mixed | |
| 17th | Punk Run | Kent | Y | 6H | Mixed | |
| 18th | Abingdon Marathon | Oxfordshire | Y | 26.2 | Road | |
| 18th | Bedford Autodrome Marathon | Beds | Y | 26.2 | Road | |
| 18th | Chelmsford Marathon | Essex | N | 26.2 | Road | |
| 18th | Four Season 6H Autumn Challenge | Bedfordshire | Y | 6H | Mixed | |
| 18th | Gothic Run | Kent | Y | 6H | Mixed | |
| 18th | Loch Rannoch Marathon | Scotland | N | 26.2 | Road | |
| 18th | Plym Autumn Trail Marathon Day 2 | Devon | N | 26.2 | Mixed | |
| 18th | Yorkshire Marathon | Yorkshire | N | 26.2 | Road | |
| 24th | Beachy Head Marathon | Sussex | N | 26.2 | Trail | |
| 24th | Coastal Trail Series - Suffolk | Suffolk | N | 26.2 | Trail | |
| 24th | Exmoor Trail Running Challenge | Devon | N | 43k | Trail | |
| 24th | Great Langdale Marathon | Cumbria | N | 26.2 | Road | |
| 24th | Snowdonia Marathon Eryri | Wales | N | 26.2 | Mixed | |
| 25th | Dublin Marathon | Co. Dublin | N | 26.2 | Road | |
| 26th | Halloween 7in7 Day 1 | Worcestershire | Y | 26.2 | Road | |
| 27th | Enigma Three Lakes Challenge Day 1 | Bucks | Y | 26.2 | Mixed | |
| 27th | Halloween 7in7 Day 2 | Worcestershire | Y | 26.0 | Road | |
| 28th | Enigma Three Lakes Challenge Day 2 | Bucks | Y | 26.2 | Mixed | |
| 28th | Halloween 7in7 Day 3 | Worcestershire | Y | 26.2 | Road | |
| 29th | Enigma Three Lakes Challenge Day 3 | Bucks | Y | 26.2 | Mixed | |
| 29th | Halloween 7in7 Day 4 | Worcestershire | Y | 26.2 | Road | |
| 30th | Halloween 7in7 Day 5 | Worcestershire | Y | 26.2 | Road | |
| 31st | A Wiltshire Trek or Treat LDWA | Wiltshire | N | 26m | Mixed | |
| 31st | Gloucester 24 | Gloucestershire | Y | 24H | Track | |
| 31st | Halloween 7in7 Day 6 | Worcestershire | Y | 26.2 | Road | |
| 31st | Hubble Bubble Leeds | Yorkshire | N | 26.2 | Trail | |
| 31st | Pumpkin Marathon (Morning) | Shropshire | Y | 26.2 | Mixed | |
| 31st | Spooky Halloween Challenge (Afternoon) | Shropshire | Y | 26.2 | Mixed | |
| November 2020 |
| 1st | Halloween 7in7 Day 7 | Worcestershire | Y | 26.2 | Road | |
| 1st | November Nightmare Day 1 | Shropshire | Y | 26.2 | Mixed | |
| 2nd | November Nightmare Day 2 | Shropshire | Y | 26.2 | Mixed | |
| 3rd | November Nightmare Day 3 | Shropshire | Y | 26.2 | Mixed | |
| 4th | November Nightmare Day 4 | Shropshire | Y | 26.2 | Mixed | |
| 5th | Enigma Fireworks Day 1 | Bucks | Y | 26.2 | Mixed | |
| 5th | Fewston & Swinsty 4x4 Day 1 | Yorkshire | N | 26.2 | Mixed | |
| 5th | November Nightmare Day 5 | Shropshire | Y | 26.2 | Mixed | |
| 6th | Druids Ridgeway Challenge 3Day Challenge Day 1 | Hertfordshire | N | 29.3m | Trail | |
| 6th | Enigma Fireworks Day 2 | Bucks | Y | 26.2 | Mixed | |
| 6th | Fewston & Swinsty 4x4 Day 2 | Yorkshire | N | 26.2 | Mixed | |
| 6th | November Nightmare Day 6 | Shropshire | Y | 26.2 | Mixed | |
| 7th | Druids Ridgeway Challenge 3Day Challenge Day 2 | Bucks | N | 26.6m | Trail | |
| 7th | Enigma Fireworks Day 3 | Bucks | Y | 26.2 | Mixed | |
| 7th | Fewston & Swinsty 4x4 Day 3 | Yorkshire | N | 26.2 | Mixed | |
| 7th | Hardmoors 26.2 Goathland Trail Marathon | North Yorkshire | N | 26.2 | Trail | |
| 7th | Kyodo Archer Day 1 | Suffolk | Y | 6H | Mixed | |
| 7th | November Nightmare Day 7 | Shropshire | Y | 26.2 | Mixed | |
| 7th | Six Dales Circuit LDWA | Derbyshire | N | 25m | Trail | |
| 7th | Thames Meander Marathon Nov | Surrey | N | 26.2 | Trail | |
| 7th | The White Raven | Surrey | N | 26.2 | Trail | |
| 8th | Druids Ridgeway Challenge 3Day Challenge Day 3 | Bucks | N | 28.3m | Trail | |
| 8th | Fewston & Swinsty 4x4 Day 4 | Yorkshire | N | 26.2 | Mixed | |
| 8th | Kyodo Archer Day 2 | Suffolk | Y | 6H | Mixed | |
| 8th | November Nightmare Day 8 | Shropshire | Y | 26.2 | Mixed | |
| 8th | Remembrance Day Anniversary | Essex | Y | 6H | Trail | |
| 8th | Remembrance Day Marathon | Surrey | Y | 26.2 | Trail | |
| 8th | Saturn Remembrance Run | Durham | Y | 7H | Mixed | |
| 14th | Beacons Trail Marathon | Wales | N | 26.2 | Mixed | |
| 14th | Coastal Trail Series - Gower | Wales | N | 26.8m | Trail | |
| 14th | Kirkstall Abbey Trail Running Festival Leeds | Yorkshire | N | 26.2 | Trail | |
| 14th | Rother Valley Marathon | Yorkshire | N | 26.2 | Mixed | |
| 14th | The Lemur Loop | Somerset | Y | 12H | Mixed | |
| 14th | Tollymore Trail Marathon | Co. Down | Y | 26.2 | Trail | |
| 14th | Wooler Trail Marathon | Northumberland | N | 28.5 | Trail | |
| 15th | Broadway Marathon | Gloucestershire | N | 26.2 | Trail | |
| 15th | Shillington Shuffle | Bucks | N | 26m | Mixed | |
| 15th | Town Moor Marathon | Northumberland | Y | 26.2 | Mixed | |
| 21st | Maravan Marathon Day 1 | Lincs | Y | 26.2 | Mixed | |
| 21st | Sunset to Sunrise Challenge | Shropshire | Y | 26.2 | Trail | |
| 22nd | Maravan Marathon Day 2 | Lincs | Y | 26.2 | Mixed | |
| 22nd | Old Mother Shipton's Shuffle | North Yorkshire | N | 26.2 | Mixed | |
| 22nd | Owler Marathon | Kent | Y | 26.2 | Trail | |
| 22nd | Peak District Trail Series | Derbyshire | N | 23.0 | Trail | |
| 27th | Black Knight Challenge Run | Kent | Y | 6H | Mixed | |
| 28th | Clonakilty Waterfront Marathon | Co. Cork | N | 26.2 | Mixed | |
| 28th | Fudgeathon | Kent | Y | 6H | Mixed | |
| 29th | Bobble Hobble Challenge | Kent | Y | 6H | Mixed | |
| 30th | St Andrews Day | Kent | Y | 6H | Mixed | |
| December 2020 |
| 1st | Advent Challenge | Kent | Y | 6H | Mixed | |
| 2nd | Caucus Wonderland | Kent | Y | 6H | Mixed | |
| 3rd | Music Legends Lucky Dip | Kent | Y | 6H | Mixed | |
| 4th | Unusual Suspects Challenge | Kent | Y | 6H | Mixed | |
| 5th | Christmas Cracker Day 1 Leeds | Yorkshire | N | 26.2 | Trail | |
| 5th | Coastal Trail Series - Dorset | Dorset | N | 27.3 | Trail | |
| 5th | Roald Dahl Challenge | Kent | Y | 6H | Mixed | |
| 5th | Saki Weekend Day 1 | Suffolk | Y | 6H | Mixed | |
| 5th | Salisbury Plain Marathon | Wiltshire | N | 26.2 | Trail | |
| 5th | Winter Run To The Castle | Wales | N | 26.2 | Trail | |
| 6th | Carrickfergus Reindeer Run | Co. Antrim | Y | 26.2 | Mixed | |
| 6th | Christmas Cracker Day 2 Leeds | Yorkshire | N | 26.2 | Trail | |
| 6th | Goodwood Motor Circuit Marathon | Sussex | Y | 26.2 | Road | |
| 6th | Njord Challenge | Kent | Y | 6H | Mixed | |
| 6th | Oulton Park Motor Circuit Marathon | Cheshire | Y | 26.2 | Road | |
| 6th | Rayne Deer Run | Essex | Y | 6H | Trail | |
| 6th | Saki Weekend Day 2 | Suffolk | Y | 6H | Mixed | |
| 11th | Rampside Ramble Day 1 | Cumbria | Y | 26.2 | Road | |
| 12th | Merry Xmas Marathon | Devon | Y | 26.2 | Trail | |
| 12th | On The Edge Challenge Day 2 | Cumbria | Y | 26.2 | Road | |
| 12th | X-Wing-Mas Enigma 1 | Bucks | Y | 26.2 | Mixed | |
| 13th | Rampside Ramble 2 Day 3 | Cumbria | Y | 26.2 | Road | |
| 13th | X-Wing-Mas Enigma 2 | Bucks | Y | 26.2 | Mixed | |
| 19th | Elsecar Running Festival Barnsley Day 1 | West Yorkshire | N | 26.2 | Mixed | |
| 19th | SVN Festive Frolic | Kent | Y | 6H | Mixed | |
| 20th | Elsecar Running Festival Barnsley Day 2 | West Yorkshire | N | 26.2 | Mixed | |
| 20th | Flitch Way Marathon | Essex | N | 26.2 | Mixed | |
| 20th | Usual Suspects | Kent | Y | 6H | Mixed | |
| 24th | Enigma Christmas Die Hard Marathon | Bucks | Y | 26.2 | Mixed | |
| 27th | Sunrise to Sunset Challenge | Shropshire | Y | 26.2 | Mixed | |
| 27th | Xmas Pud Run | Suffolk | Y | 6H | Mixed | |
| 28th | Saxon Shore Marathon | Kent | Y | 6H | Mixed | |
| 31st | Flitch Way NYE Marathon | Essex | N | 26.2 | Mixed | |
| January 2021 |
| 1st | Flitch Way NYD Marathon | Essex | N | 26.2 | Mixed | |
| 2nd | Mt Fuji Run Day 1 | Suffolk | Y | 6H | Mixed | |
| 2nd | Winter Enigma Day 1 | Bucks | Y | 26.2 | Mixed | |
| 3rd | Mt Fuji Run Day 2 | Suffolk | Y | 6H | Mixed | |
| 3rd | Winter Enigma Day 2 | Bucks | Y | 26.2 | Mixed | |
| 9th | Sir Titus Winter Trot | West Yorkshire | N | 26.2 | Mixed | |
| 16th | Doughnut Dash | Surrey | Y | 6H | Trail | |
| 22nd | Beyond The Far Side | Wiltshire | Y | 24H | Trail | |
| 24th | Offa's Twisted Wye Kanter | Wales | N | 25m | Mixed | |
| 30th | Winter Holly Challenge | Shropshire | Y | 26.2 | Mixed | |
| 31st | Four Seasons Winter 2021 | Wales | Y | 7H | Mixed | |
| February 2021 |
| 6th | Icing On The Cake Marathon | Shropshire | N | 26.2 | Trail | |
| 6th | Sushi Run Day 1 | Suffolk | Y | 6H | Mixed | |
| 7th | Sushi Run Day 2 | Suffolk | Y | 6H | Mixed | |
| 12th | Charles Darwin Day | Shropshire | Y | 26.2 | Mixed | |
