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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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7 events · 15 races

Dragon's Back Race

Conwy Castle · Eryri / Snowdonia

7 Sept 2026 to 12 Sept

380km over 6 days +3 more 16,600mof ascentMountainousMountain, Fell150 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

1,960mof ascentHillyTrail50 to 149 runnersFirst come first servedQualifierEntry open

Entry details confirmed with the organiser on 15 August 2026.

Suffolk Backyard Ultra Festival

High Lodge, Thetford Forest, Brandon · East Anglia

4.167 mile laps, last runner standing 28m per lapof ascentFlatTrail, Forest150 to 399 runnersFirst come first servedEntry open

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

South Downs Way 100 & 50km

Matterley Bowl, near Winchester · South Downs · World Trail Majors

12 Jun 2027 to 13 Jun

100 miles · 50km 3,800mof ascentHillyTrail, Road400 to 999 runnersFirst come first servedQualifierEntry open

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

The Wall

Carlisle Castle, Carlisle (registration at Crown and Mitre Hotel) · North East

12 Jun 2027 to 13 Jun

1,055m per lapof ascentFlatTrail, RoadFirst come first servedEntry open

Entry details confirmed with the organiser on 15 August 2026.

Solstice at the Lakes

Leybourne Lakes Country Park, Malling Rd, Snodland ME20 6JA · Home Counties

Trail, RoadFirst come first servedEntry open

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

West Highland Way Race

Milngavie · Central Belt

95 miles 4,500mof ascentHillyTrail, Moorland150 to 399 runnersBallotQualifierBallot opens in 46d

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