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 101 to 200 of 264
EnduranceLife Exmoor
Saturday, 9 May 2026Martinhoe, Exmoor, UK
Goring Gap Trails
Saturday, 9 May 2026 to Sunday, 10 May 2026Mapledurham, Reading, UK
Holy Trail Festival of Running
Saturday, 9 May 2026Oulton Broad, Lowestoft, Suffolk, UK
Kintyre Way Ultra
Saturday, 9 May 2026Tayinloan to Campbeltown, Scotland, UK
London 100K
Saturday, 9 May 2026Pimlico, London, UK
Run Rabbit Trail Festival
Saturday, 9 May 2026 to Sunday, 10 May 2026Deene Park Estate, Deene, Corby, UK
Run to the Sea Brighton
Saturday, 9 May 2026Horsham to Brighton, Sussex, UK
Spire Ultra
Saturday, 9 May 2026North Wingfield, Chesterfield, Derbyshire, UK
West Country Ultra
Saturday, 9 May 2026 to Sunday, 10 May 2026Taunton / Minehead, Somerset, UK
Shires & Spires
Sunday, 10 May 2026Naseby, Northampton, UK
Bishop's Castle Trail Ultra
Saturday, 16 May 2026Bishop's Castle, Shropshire, UK
Kendal to Preston Ultra
Saturday, 16 May 2026Kendal to Preston, Lancashire, UK
Maverick Cotswolds Trail Run
Saturday, 16 May 2026Winchcombe, Gloucestershire, UK
Skipton Skedaddle Trail Race
Saturday, 16 May 2026Skipton, North Yorkshire, UK
Cape Wrath Ultra
Sunday, 17 May 2026 to Sunday, 24 May 2026Fort William to Cape Wrath, UK
Guernsey Ultra
Sunday, 17 May 2026Guernsey, Channel Islands, UK
Hardmoors 200 Trail Ultra
Friday, 22 May 2026 to Sunday, 24 May 2026Kingston upon Hull to Helmsley, Yorkshire, UKHardmoors 110 Trail Ultra
Saturday, 23 May 2026Filey to Helmsley, Yorkshire, UK
Kirkhill 8
Saturday, 23 May 2026Kirkhill Forest, Aberdeen, UK
PWR Endure Backyard Ultra Marathon
Saturday, 23 May 2026Tockington, Bristol, Gloucestershire, UK
The Fox Trail Ultra, Marathon & Half Marathon
Saturday, 23 May 2026Godalming, Surrey, UK
UK Ultra South Downs
Saturday, 23 May 2026Eastbourne, UK
Blair Castle Trail Weekender
Friday, 29 May 2026 to Sunday, 31 May 2026Blair Castle, Blair Atholl, UK
Beat The Sunset 50K Ultra
Saturday, 30 May 2026Maidenhead, Berkshire, UK
The Ridgeway Challenge & Ridgeway Chase
Saturday, 30 May 2026Ivinghoe Beacon to Avebury, UK
The Ultra Loop - Track Edition
Saturday, 30 May 2026Wythenshawe, Manchester, UK
Three Castles 50km Ultra
Saturday, 30 May 2026Rochester to Tonbridge, Kent, UK
Pembrokeshire Coastal Races
Friday, 5 June 2026 to Sunday, 7 June 2026Dale, Milford Haven, Wales, UK
Blended's Backyard Ultra
Saturday, 6 June 2026Chilton Candover, Hampshire, UK
EnduranceLife Classic Quarter
Saturday, 6 June 2026Lizard Point to Land's End, Cornwall, UK
Glen Lyon Ultra Marathon & Trail Race
Saturday, 6 June 2026 to Sunday, 7 June 2026Loch Lyon, Aberfeldy, UK
Glentress 8-hour Challenge
Saturday, 6 June 2026Glentress Forest, Scotland, UK
ONER Ultra Trail Run
Saturday, 6 June 2026Weymouth, Dorset, UK
Suffolk Back Yard Ultra
Saturday, 6 June 2026High Lodge, Thetford Forest, UK
BigSea Trails (WATER)
Sunday, 7 June 2026Studland, Dorset, UK
Manchester Backyard Ultra
Saturday, 13 June 2026Radcliffe, Manchester, UK
Rat Race The Wall Ultramarathon
Saturday, 13 June 2026Carlisle to Gateshead, Northern England, UK
Six Dales Trail Race
Saturday, 13 June 2026Otley, West Yorkshire, UK
The Breakheart Backyard Ultra
Saturday, 13 June 2026Breakheart Quarry, Dursley, UK
The Hardwick Hobble - Summer
Saturday, 13 June 2026Chesterfield, Derbyshire, UK
Lamplighter 40 Mile Ultra
Saturday, 20 June 2026Goathland, Whitby, North Yorkshire, UK
Race to the King Trail Run
Saturday, 20 June 2026West Dean, Chichester, West Sussex, UK
The Sunset Running Festival
Saturday, 20 June 2026Siverknowes Promenade, Edinburgh, UK
Three Shires Way Ultra & Marathon
Saturday, 20 June 2026Hanslope / Yelden to Grafham Water, UK
Longbridge Backyard Ultra - Summer
Friday, 26 June 2026Litlington, East Sussex, UK
Hardwolds 40 Trail Ultra
Saturday, 27 June 2026Beverley to Malton, Yorkshire, UK
HARP24 Endurance Race
Saturday, 27 June 2026 to Sunday, 28 June 2026Rochford, Essex, UK
Hourglass
Saturday, 27 June 2026Whitecross, Wadebridge, UK
Maverick North Downs Trail Run
Saturday, 27 June 2026Cranleigh, Surrey, UK
Ridgeway Relay
Sunday, 28 June 2026Ivinghoe Beacon to Marlborough, Wiltshire, UK
The Northumbrian Trail Runs
Sunday, 28 June 2026Kielder, Hexam, Northumberland, UK
TrailFest Salcey Forest
Sunday, 28 June 2026Salcey Forest, Northampton, UK
By Way of The Glen
Friday, 3 July 2026Glasgow to Inverness, UK
The Essex Way Ultra
Friday, 3 July 2026 to Saturday, 4 July 2026Epping to Harwich, UKGreat Glen Ultra Marathon
Saturday, 4 July 2026Fort William / Fort Augustus to Inverness, UK
Rat Race 100 - Bamburgh to Edinburgh
Saturday, 4 July 2026 to Monday, 6 July 2026Bamburgh, Northumberland to Edinburgh, Scotland, UK
Summits Of The North York Moors Ultra
Saturday, 4 July 2026Goathland, Whitby, North Yorkshire, UK
The Serpent Trail Races
Saturday, 4 July 2026Haslemere to Petersfield, Hampshire, UK
The Severn Challenge
Wednesday, 8 July 2026 to Sunday, 12 July 2026Hafren to Bristol, UK
Swan Challenge
Friday, 10 July 2026Coombe Abbey Park, Coventry, UK
Black Mountains Ultra, Marathon, Half Marathon
Saturday, 11 July 2026Longtown, Hereford, UK
Lakeland Trails Ultra
Saturday, 11 July 2026Ambleside, UK
Maverick Chilterns Trail Run
Saturday, 11 July 2026Princes Risborough, Buckinghamshire, UK
Race to the Stones Trail Run
Saturday, 11 July 2026 to Sunday, 12 July 2026Lewknor / Wantage to Avebury, Oxfordshire, UK
Snowdonia Trail Marathon Eryri
Saturday, 11 July 2026 to Sunday, 12 July 2026Llanberis, Caernarfon, UK
The Sting Backyard Ultra
Saturday, 11 July 2026Richmond, North Yorkshire, UK
Yr Wyddfa / Snowdon 24
Saturday, 11 July 2026Llanberis, Caernarfon, UK
Eight Stations Ultra
Sunday, 12 July 2026Whitby to Pickering, UK
Rasselbock Marathon, Half & Ultra
Sunday, 12 July 2026Sherwood Pines Forest, Nottinghamshire, UK
BigHeat Trails (FIRE)
Saturday, 18 July 2026 to Sunday, 19 July 2026Lurgashall, Petworth, West Sussex, UK
Castle to Castle Ultra
Saturday, 18 July 2026Clitheroe Castle to Lancaster Castle, Lancashire, UK
Dragon Coastal Ultramarathons
Saturday, 18 July 2026 to Sunday, 19 July 2026Rhossili Bay to Cardiff Bay, Wales, UK
Gower Peninsula Ultra Challenge
Saturday, 18 July 2026 to Sunday, 19 July 2026Penrice, Swansea, Wales, UK
Highlander Last One Standing
Saturday, 18 July 2026Murthly, Perthshire, UK
Rat Race 100 - Edinburgh to Glamis
Saturday, 25 July 2026 to Monday, 27 July 2026Edinburgh to Glamis, Scotland, UK
Rollin' 100 Ultramarathon
Saturday, 25 July 2026Bishops Castle, Shropshire, UK
South West Coast 50 Ultra Challenge
Saturday, 25 July 2026Dunster, Minehead, Somerset, UK
The Rasselbock 545
Saturday, 25 July 2026Horspath Athletics Track, Oxford, UK
Ultra X Wales
Saturday, 25 July 2026 to Sunday, 26 July 2026Abergavenny, Monmouthshire, Wales, UK
Yorkshire Wolds Ultra
Saturday, 25 July 2026Pocklington, Yorkshire, UK
Isaac’s Tea Trail Ultra
Saturday, 1 August 2026Allendale Town, Hexham, UK
North Downs 50 Ultra Challenge
Saturday, 1 August 2026Guildford, Surrey, UK
MTC Cotswold Ultra
Thursday, 6 August 2026Kemble to Oxford, UKMTC Thames Challenge - Multi Stage
Thursday, 6 August 2026 to Sunday, 9 August 2026Cotswolds to Greenwich, UKMTC Oxford Ultra
Friday, 7 August 2026Oxford to Henley-on-Thames, UK
Maverick Ochil Hills Trail Run
Saturday, 8 August 2026Airthrey Castle, Stirling, UKMTC Windsor Ultra
Saturday, 8 August 2026Henley to KIngston, UK
Stour Valley Path 100K & 50K
Saturday, 8 August 2026Newmarket / Sudbury to Brantham, UK
The Ultra Loop - Temple Newsam
Saturday, 8 August 2026Temple Newsam Park, Leeds, UK
MTC Richmond Ultra
Sunday, 9 August 2026Kingston upon Thames, London, UK
Foxton Hound Ultra
Saturday, 15 August 2026Winwick, Northants, UK
Pierrepont Plod - Summer
Saturday, 15 August 2026Holme Pierrepont, Nottingham, UK
SkyRun Eryri
Saturday, 15 August 2026Rhyd-Ddu, Caernarfon, Wales, UK
Two Tunnels Railway Races: August
Sunday, 16 August 2026Bath, Somerset, UK
Beast of Llangattock
Saturday, 22 August 2026Llangattock, Crickhowell, UK
The Summer Green Man Ultra (GMU)
Saturday, 22 August 2026Ashton Park School, Bristol, UK
Black Cattle Ultra
Saturday, 29 August 2026Llanthony Priory to Cardiff, UK
Dales Dazzler
Saturday, 29 August 2026Skipton, North Yorkshire, UK
Devon & Cornwall Backyard Ultra
Saturday, 29 August 2026Newnham Park, Plympton, Plymouth, UK
London Backyard Ultra
Saturday, 29 August 2026Croyden, London, UK
Events 101 to 200 of 264