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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.

Terrain

Trail Fell Mountain Moorland Coastal path Forest Canal & towpath Road Urban

Hilliness

Flat Rolling Hilly Mountainous

Format

Single stage Stage Timed Backyard Relay

Entry mechanism

First come first served Ballot Application & selection Invitational

Field size

Under 50 50 to 149 150 to 399 400 to 999 1,000+

Specific month

January February March April May June July August September October November December

Other

Dates confirmed by organiser Part of a series

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5 events · 7 races

Thames Trail Ultra

Mercure Oxford Hawkwell House Hotel, Church Way, Iffley, Oxford OX4 4DZ · Chilterns

289m per lapof ascentFlatTrail, Coastal pathFirst come first servedEntry not yet open

Entry dates not yet known.

Gullane 8-hour Challenge

Gullane · Central Belt

Open ended - 8 hoursCoastal path, TrailEntry open

Entry details as published by the organiser, checked 15 August 2026.

The Hardmoors 55

Guisborough · North York Moors · Hardmoors

55 miles 2,700mof ascentMountainousTrail, Moorland150 to 399 runnersFirst come first servedEntry 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

Coastal path, TrailFirst come first servedQualifierEntry open

Entry details confirmed with the organiser on 15 August 2026.

The Montane Lakeland 50 & 100

Coniston · Lake District

23 Jul 2027 to 25 Jul

105 miles · 50 miles 6,856mof ascentMountainousFell, Mountain400 to 999 runnersBallotQualifierBallot opens in 16d

Entry details confirmed with the organiser on 14 August 2026.