Ultra Marathons in United Kingdom
An ultramarathon or 'Ultra' is the term for any running event longer than the traditional marathon length of 42.195 kilometres (26.2 miles). Some of the most common distances are 50K, 100K and 100 miles. Ultra marathons are becoming increasingly popular, especially the off-road/trail and mountain running variants as well as the ultimate endurance event - the Last One Standing (LOS) or Backyard Ultra (BYU).
The following is a list of ultra marathons in United Kingdom.
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Events 1 to 100 of 304
Robin Challenge: 6 Hour Running Race
Thursday, 8 October 2026Sence Valley Forestry Park, Leicestershire, UK
Aberfoyle Trail Festival
Saturday, 10 October 2026Aberfoyle, Stirling, UK
Beat Box Hill Trails
Saturday, 10 October 2026Box Hill, Tadworth, Surrey, UK
Bennachie Ultra Marathon
Saturday, 10 October 2026Pitcaple, Inverurie, UK
EnduranceLife Suffolk
Saturday, 10 October 2026Dunwich, Saxmundham, UK
Kent Downs 50 Ultra Challenge
Saturday, 10 October 2026Maidstone, Kent, UK
Lakes in a Day Ultra & Half
Saturday, 10 October 2026Caldbeck / Ambleside to Cartmel, Cumbria, UK
Lone Wolf South West
Saturday, 10 October 2026 to Sunday, 11 October 2026Haldon Forrest, Bullers Hill, Exeter, UK
Rat Race Sea to Summit - Ben Nevis
Saturday, 10 October 2026Ben Nevis, Scotland, UK
SkyRun The Mournes
Saturday, 10 October 2026Donard Park, Newcastle, Co. Down, NI
The Loop Ultra
Saturday, 10 October 2026Plas Dolanog, Welshpool, UK
William Wallace Running Festival
Saturday, 10 October 2026Stirling, Scotland, UK
Bath & Bristol Railway Races Autumn
Sunday, 11 October 2026Green Park, Bath, UK
Kent Backyard Ultra 2.1: Vigo
Friday, 16 October 2026Vigo, Meopham, Kent, UK
Amberaid 30 & Petit Raid
Saturday, 17 October 2026Ashover Village Hall, Chesterfield, UK
Gatliff Marathon
Saturday, 17 October 2026Edenbridge, Kent, UK
Maverick Jurassic Coast X-Trail Run
Saturday, 17 October 2026Wareham, Dorset, UK
She Strides Rip ‘n’ Run XL
Saturday, 17 October 2026Hebden Bridge, West Yorkshire, UK
Ultra Tour Yorkshire Dales
Saturday, 17 October 2026Grassington, Skipton, UK
Ely Runfest
Sunday, 18 October 2026Ely, Cambridgeshire, UK
The Ultra Loop - Delamere
Sunday, 18 October 2026Delamere Forest, Frodsham, UK
Beachy Head Marathon, Ultra & 10K
Saturday, 24 October 2026Eastbourne, UK
EnduranceLife North York Moors
Saturday, 24 October 2026Ravenscar, North Yorkshire, UK
Jedburgh Three Peaks Ultra
Saturday, 24 October 2026Jedburgh, Scottish Borders, UK
Nidderdale Way Trail Race & Ultra
Saturday, 24 October 2026Pateley Bridge, North Yorkshire, UK
OMM Original Mountain Marathon
Saturday, 24 October 2026 to Sunday, 25 October 2026Talnotry, Scotland, UK
RØVE Trail Run Challenge
Saturday, 24 October 2026Headley, Epsom, UK
Tentsmuir Forest 8-hour Challenge
Saturday, 24 October 2026Tentsmuir Forest, Scotland, UK
Thames Trail Ultra
Saturday, 24 October 2026Iffley, Oxfordshire to Henley on Thames, UK
Running Tribe Race: October
Sunday, 25 October 2026Chalfont Park Sports Club, Chalfont St Peter, Gerrards Cross, UK
Stort 30 Trail Ultra
Sunday, 25 October 2026Bishop’s Stortford, Hertfordshire, UK
Black Beacon Mountain Races
Friday, 30 October 2026 to Sunday, 1 November 2026Hay-on-Wye, Hereford, Wales, UK
Chiltern Ridge Winter 50K
Saturday, 31 October 2026Berkhamsted, UK
Endure the Moor
Saturday, 31 October 2026Gosforth, Newcastle upon Tyne, UK
Outrun The Night
Saturday, 31 October 2026Dalkeith Country Park, Edinburgh
The Rosliston Rumble - Autumn
Sunday, 1 November 2026Rosliston, Swadlincote, UK
Beacons Ultra, Marathon & Half Marathon
Saturday, 7 November 2026Talybont-on-Usk, Brecon, Powys, UK
Coast2Coast Winter Ultra
Saturday, 7 November 2026Llithfaen, Pwllheli, North Wales, UK
Dart Deliverance 50K, Marathon & Half Marathon
Saturday, 7 November 2026Kingswear/Totnes to Dartmouth, Devon, UK
EnduranceLife Gower
Saturday, 7 November 2026Oxwich Bay, Gower, Swansea, UK
Glen Ogle 33 Ultra
Saturday, 7 November 2026Killin, Perthshire, UK
North Coast 110 Ultra
Saturday, 7 November 2026 to Sunday, 8 November 2026Hartland Quay to Minehead, Devon, UK
Off The Tarmac Ultra Marathon
Saturday, 7 November 2026Georgetown, Merthyr Tydfil, Wales, UK
Race to Remember
Saturday, 7 November 2026Aldershot to Portsmouth, UK
Red Warrior Challenge Multi Terrain Races
Sunday, 8 November 2026Margam Country Park, Port Talbot, UK
The Druid's Challenge
Friday, 13 November 2026 to Sunday, 15 November 2026Tring, Hertfordshire to Wroughton, Wiltshire, UK
Five Trails Ultra & 3 Trails Half
Saturday, 14 November 2026Graffham, Petworth, UK
Slate Trail Ultra
Saturday, 14 November 2026Porth Penrhyn, Bangor, Wales, UK
Wharfedale Skyline Trail Race & Ultra
Saturday, 14 November 2026Otley, West Yorkshire, UK
Winter Weavers' Way Ultras
Saturday, 14 November 2026Great Yarmouth / Stalham to Cromer, Norwich, UK
Winter Wirral Ultra
Saturday, 14 November 2026Hooton, Wirral, UK
Wooler Trail Marathon & Half Marathon
Saturday, 14 November 2026 to Sunday, 15 November 2026Wooler, Northumberland, UK
Roly's Run
Sunday, 15 November 2026Swanmore, Southampton, Hampshire, UK
Dormouse Challenge: 6 Hour Running Race
Friday, 20 November 2026Salcey Forest, Northampton, UK
Culbin Forest 8-hour Challenge
Saturday, 21 November 2026Culbin Forest, Moray, Scotland, UK
Kendal Mountain Trail Runs
Saturday, 21 November 2026Kendal, Cumbria, UK
North Chilterns 50K
Saturday, 21 November 2026Putteridge Bury, Luton, UKMudfest Rosliston Forest - November
Friday, 27 November 2026Rosliston, Swadlincote, UKRunning Tribe Race: November
Saturday, 28 November 2026Chalfont St Peter Community Centre, Chalfont St Peter, Gerrards Cross, UK
Sidlaw Ultra
Saturday, 28 November 2026Glamis Castle to Scone Palace, Scotland, UK
EnduranceLife Dorset
Saturday, 5 December 2026Swanage, Dorset, UK
St Edmund Way Ultra Marathon
Saturday, 5 December 2026Suffolk, UK
UK Ultra Winter on the Downs
Saturday, 5 December 2026Plumpton, East Sussex
Hurtwood 50K Ultra
Sunday, 6 December 2026Dorking Sports Centre, Dorking, UK
Celtic Trail Races
Saturday, 12 December 2026Aberdare, Rhondda Cynon Taff, Wales, UK
Christmas Cracker
Saturday, 12 December 2026Otley, North Yorkshire, UKRunning Tribe Race: December
Saturday, 12 December 2026Chalfont St Peter Community Centre, Chalfont St Peter, Gerrards Cross, UK
Winter Wanderlust 50K Ultra
Sunday, 20 December 2026Detling to Wye, Kent, UK
Winter X
Monday, 28 December 2026The Meon Hall, Meonstoke, Southampton, UKRunning Tribe Race: January
Saturday, 2 January 2027White Hill, Chesham, UK
Country to Capital Ultra Marathon
Saturday, 9 January 2027Wendover to London, UK
EnduranceLife North Cornwall
Saturday, 9 January 2027Polzeath, North Cornwall, UK
Hardmoors 30 Trail Ultra
Saturday, 9 January 2027Robin Hood’s Bay, Yorkshire, UKKent Backyard Ultra 2.2: Dover
Saturday, 9 January 2027Dover, Kent, UK
Montane Winter Spine
Saturday, 9 January 2027 to Tuesday, 12 January 2027Pennine Way, UK
The Clumber Lakeside - Winter
Saturday, 16 January 2027 to Sunday, 17 January 2027Clumber Park, Worksop, UK
Crocodile Challenge: 6 Hour Running Race
Thursday, 21 January 2027Ryton Pools Country Park, Coventry, Warwickshire, UK
Longbridge Backyard Ultra - Winter
Friday, 22 January 2027Litlington, East Sussex, UK
EnduranceLife South Devon
Saturday, 23 January 2027Beesands, Kingsbridge, UK
MindOverMoors - Twin Falls 50K & Falls 10K
Saturday, 23 January 2027Goathland, Whitby, UK
Squirrel Challenge: 6 Hour Running Race
Thursday, 4 February 2027 (Date TBC)Daventry, Northamptonshire, UK
Harrogate Hustle Trail Race
Saturday, 6 February 2027Pannal, Harrogate, North Yorkshire, UKRunning Tribe Race: February
Saturday, 6 February 2027White Hill, Chesham, UK
The Pilgrim Challenge
Saturday, 6 February 2027 to Sunday, 7 February 2027The Sands, Farnham, UK
Trails & Tarmac Winter 12 Hour Back Yard Ultra
Saturday, 6 February 2027Crickhowell, Powys, Wales, UK
UK Ultra Hibernal Hills 50 Miles, 50K & 20 Miles
Saturday, 6 February 2027Ditcham Park School, Petersfield, UK
Peddars Way Ultra Marathon
Sunday, 7 February 2027Knettishall Heath to Holme Next-The-Sea, UK
Brecon to Cardiff Classic & Xtreme
Sunday, 14 February 2027Brecon to Cardiff, Wales, UK
EnduranceLife Northumberland
Saturday, 20 February 2027Bamburgh Castle, Northumberland, UK
BigMud Trails (EARTH)
Sunday, 21 February 2027Horndean, Hampshire, UK
North Downs Ridge 50K Trail Ultra
Sunday, 21 February 2027Denbies Wine Estate, Dorking, UK
Badger Challenge: 6 Hour Running Race
Friday, 26 February 2027Beacon Hill Country Park, Leicestershire, UKGullane 8-hour Challenge
Saturday, 27 February 2027Gullane Beach, Gullane, Scotland, UKLone Wolf Manchester
Saturday, 27 February 2027 to Sunday, 28 February 2027Heaton Park, Manchester, UK
St Peters Way Ultra Marathon
Sunday, 28 February 2027Chipping Ongar to Bradwell on Sea, Essex, UK
Beast of the Blacks 10, 20 & 40 Mile
Saturday, 6 March 2027Crickhowell, Powys, UK
Dark Skies Run @ Kielder
Saturday, 6 March 2027 to Sunday, 7 March 2027Kielder Waterside, Northumberland, UK
EnduranceLife Sussex
Saturday, 6 March 2027Helen Garden, Eastbourne, UK
Morland 'Marathon' Trail Ultra
Saturday, 6 March 2027Morland, Cumbria, UK
The Winter Green Man Ultra
Saturday, 6 March 2027Ashton Park School, Bristol, UK
Events 1 to 100 of 304