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.
To filter the events by keywords, location, date range and event type - go to SEARCH.
Showing the list of events on a map is a great way of finding events near you, but is limited to logged in premium members.
Log in/register here, and find out more about our levels of membership and upgrade today if you are not already premium.
Premium membership provides an ad-free experience, and adds a number of useful functions to help you more easily find events near you, including location based searching and seeing the results on a map.
Events 101 to 200 of 224
The Winter Green Man Ultra
Saturday, 7 March 2026Ashton Park School, Bristol, UK
Morland 'Marathon' Trail Ultra
Sunday, 8 March 2026Morland, Cumbria, UK
The Rosliston Rumble - Spring
Sunday, 8 March 2026Rosliston, Swadlincote, UK
Beast of the Blacks 10, 20 & 40 Mile
Saturday, 14 March 2026Llanbedr, Crickhowell, UK
Humanity Direct Amersham Ultra
Saturday, 14 March 2026Amersham, UK
The JOGLE
Saturday, 14 March 2026 to Monday, 30 March 2026John O’Groats to Lands End, UK
The Tyne Bridges To Boundaries Ultra
Saturday, 14 March 2026Quayside, Newcastle upon Tyne, UK
London Lea Valley 50K Ultra & Gratitude 25K
Saturday, 21 March 2026Welwyn Garden City to Hackney Wick, East London, UK
Lone Wolf South East
Saturday, 21 March 2026 to Sunday, 22 March 2026Alice Holt Forrest, Bucks Horn Oak, Farnham, UK
The Ultra Loop - Heaton Park
Saturday, 21 March 2026Heaton Park, Manchester, UK
Winter's End Ultra & Marathon
Saturday, 21 March 2026Arundel to Winchester, UK
Canalathon Ultra
Sunday, 22 March 2026Sowerby Bridge, Yorkshire, UK
Elephant Challenge
Tuesday, 24 March 2026Salcey Forest, Northampton, UK
Rasselbock Backyard Ultra - Sherwood Pines
Saturday, 28 March 2026Sherwood Pines, Mansfield, UK
Running Tribe Race: March
Sunday, 29 March 2026Chalfont Park Sports Association, Chalfont St Peter, Gerrards Cross, UK
UK Ultra Springtide 50K & Half Marathon
Sunday, 29 March 2026Arundel, West Sussex, UK
Chalk Stream Ultra 50 & 40 miles
Saturday, 4 April 2026Linkenholt to Totton, Hampshire, UK
The Pendine Sands Races
Sunday, 5 April 2026Pendine Sands, Carmarthanshire, UK
Rose of the Shires Ultra & Rosebud Marathon
Saturday, 11 April 2026Brixworth, Northampton, UK
The Calderdale Hike
Saturday, 11 April 2026Sowerby Bridge, Calderdale, West Yorkshire, UK
Battle of the Brampton Valley Way
Sunday, 12 April 2026Northampton, UK
Beast of the Beacons
Saturday, 18 April 2026Llanbedr, Crickhowell, UK
Chiltern Ridge Classic 50K
Saturday, 18 April 2026Berkhamsted to Wendover, UK
Cymoedd Sir Fynwy
Saturday, 18 April 2026 to Sunday, 19 April 2026Abergavenny, Monmouthshire, UK
Rat Race Ultra Tour of Arran
Saturday, 18 April 2026 to Sunday, 19 April 2026Isle of Arran, Scotland, UK
Ultra X Spring Trail Series
Saturday, 18 April 2026Midhurst, West Sussex, UK
Thames Ring 250
Wednesday, 22 April 2026 to Sunday, 26 April 2026Streatley-on-Thames, Reading, UK
Butcombe Trail Ultra
Saturday, 25 April 2026Mendip Activity Centre, Mendips, UK
EnduranceLife Pembrokeshire
Saturday, 25 April 2026Little Haven, Haverfordwest, UK
The Medieval Backyard Ultra
Saturday, 25 April 2026Cosmeston Country Park, Penarth, UK
Total Coastal Ultra & Half Marathon
Saturday, 25 April 2026Kingswear to Shaldon, Devon, UK
Wold Rangers Way Ultra
Saturday, 25 April 2026Driffield, Yorkshire, UK
Clun Valley Trail Half Marathon
Sunday, 26 April 2026Guilden Down, Clun, UK
Eastnor Castle Backyard & Relay
Sunday, 26 April 2026Eastnor, Ledbury, Herefordshire, UK
Shakespeare Marathon & Half Marathon
Sunday, 26 April 2026Wood St, Stratford-upon-Avon, UK
Portland Pig BackYard Ultra
Friday, 1 May 2026Portland, UK
Fife Pilgrim Way Ultra Marathon
Saturday, 2 May 2026North Queensferry to St Andrews, Fife
The Malvern Hills Ultra
Saturday, 2 May 2026Abberley, Worcester, UK
Ultra X Scotland
Saturday, 2 May 2026 to Sunday, 3 May 2026Inverness to Dores, Scotland, UK
Marlborough Downs Challenge
Sunday, 3 May 2026Marlborough, Wiltshire, UK
BigWayRound Trail Run
Monday, 4 May 2026Winchester, Hampshire, UK
Bat Challenge
Friday, 8 May 2026Beacon Hill Country Park, Leicestershire, UK
Canal Shuffle
Saturday, 9 May 2026Sampford Peverell, Tiverton, UK
Cateran Trail Ultramarathon
Saturday, 9 May 2026Glenshee, Perthshire, UK
Chiltern Hills 100K Ultra
Saturday, 9 May 2026Chesham, Buckinghamshire, UK
Dukeries 30/40
Saturday, 9 May 2026Walesby, Newark, Nottingham, UK
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
Cape Wrath Ultra
Sunday, 17 May 2026 to Sunday, 24 May 2026Fort William to Cape Wrath, 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 Ultra
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
Suffolk Back Yard Ultra
Saturday, 6 June 2026High Lodge, Thetford Forest, UK
BigSea Trails (WATER)
Sunday, 7 June 2026Studland, Dorset, UK
Rat Race The Wall Ultramarathon
Saturday, 13 June 2026Carlisle to Gateshead, Northern England, UK
The Breakheart Backyard Ultra
Saturday, 13 June 2026Breakheart Quarry, Dursley, UKThe Hardwick Hobble - Summer
Saturday, 13 June 2026Chesterfield, Derbyshire, UK
Race to the King Trail Run
Saturday, 20 June 2026West Dean, Chichester, West Sussex, UK
The Hopper 6, 12 & 24 Hour Trail Races
Saturday, 20 June 2026Hamsterley Forest, Bishop Auckland, 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
HARP24 Endurance Race
Saturday, 27 June 2026 to Sunday, 28 June 2026Rochford, Essex, UK
Hourglass
Saturday, 27 June 2026Whitecross, Wadebridge, UK
Ridgeway Relay
Sunday, 28 June 2026Ivinghoe Beacon to Marlborough, Wiltshire, UK
The Northumbrian Trail Runs
Sunday, 28 June 2026Kielder, Hexam, Northumberland, 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
The Severn Challenge
Wednesday, 8 July 2026 to Sunday, 12 July 2026Hafren to Bristol, UK
Black Mountains Ultra, Marathon, Half Marathon
Saturday, 11 July 2026Longtown, Hereford, UK
Lakeland Trails Ultra
Saturday, 11 July 2026Ambleside, UK
Race to the Stones Trail Run
Saturday, 11 July 2026 to Sunday, 12 July 2026Lewknor / Wantage to Avebury, Oxfordshire, 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
Snowdonia Trail Marathon Eryri
Sunday, 12 July 2026Llanberis, Caernarfon, 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
Rat Race 100 - Edinburgh to Glamis
Saturday, 25 July 2026 to Monday, 27 July 2026Edinburgh to Glamis, Scotland, UK
Events 101 to 200 of 224