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UK ultra marathons

Every organised ultra in the UK, Northern Ireland and the Crown dependencies. Filter by distance, terrain, hilliness and how you actually get in.

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EntryEntry open nowOpens in 30 daysBallotNo qualifier
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8 events · 15 races

Slate Trail Ultra

Porth Penrhyn, Bangor · Eryri / Snowdonia
14 Nov 2026
3,900mof ascentHillyMountain, Trail50 to 149 runnersFirst come first servedBallot open
Entry details as published by the organiser, checked 15 August 2026.

The Copthorne Races

Mickleham Village Hall, Mickleham, Dorking RH5 6EE · North Downs
21 Nov 2026
6,888mof ascentMountainousTrailFirst come first servedEntry open
Entry details confirmed with the organiser on 15 August 2026.

Country to Capital

Wendover · Chilterns
9 Jan 2027
43 miles 419mof ascentFlatCanal & towpath, Trail150 to 399 runnersFirst come first servedEntry open
Provisional, based on last year. We will confirm when the organiser publishes.

The Longbridge 100 Backyard Ultra (Winter)

Litlington, East Sussex · South Downs
22 Jan 2027 to 24 Jan
4.167 mile laps, last runner standingTrail50 to 149 runnersFirst come first servedEntry open
Entry details as published by the organiser, checked 15 August 2026.

The Hardmoors 55

Guisborough · North York Moors · Hardmoors
20 Mar 2027
55 miles 2,700mof ascentMountainousTrail, Moorland150 to 399 runnersFirst come first servedEntry open
Entry details confirmed with the organiser on 15 August 2026.

Butcombe Trail Ultra

Mendip Activity Centre, BS25 5PQ · South West
17 Apr 2027
1,960mof ascentHillyTrail50 to 149 runnersFirst come first servedQualifierEntry open
Entry details confirmed with the organiser on 15 August 2026.

Five Rivers Ultra

50mi: Trimley Memorial Hall, Trimley St Martin | 50km: Shotley Village Hall, Shotley · East Anglia
15 May 2027
Coastal path, TrailFirst come first servedQualifierEntry open
Entry details confirmed with the organiser on 15 August 2026.

Run Britannia

Land's End, Cornwall · Cornwall
28 May 2027 to 3 Jul
1,000 miles over 31 stages 21,336mof ascentRollingTrail, RoadFirst come first servedEntry open
Entry details as published by the organiser, checked 15 August 2026.

Related searches

Ultra marathons in ScotlandUltra marathons in the Lake District100 mile races in the UKBackyard ultras in the UKUK ultras with entry opening soonUK ultras with no qualifier neededWinter ultras in the UKSmall-field UK ultras
UK ultra marathons: the full list | Ultralist