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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.

Distance50K50 mile100K100 mile200km+Unbounded
WhereEnglandScotlandWales
WhenNext 3 monthsNext 6 monthsNext 12 monthsSpringSummerAutumnWinter
EntryEntry open nowOpens in 30 daysBallotNo qualifier
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6 events · 8 races

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.

Suffolk Backyard Ultra Festival

High Lodge, Thetford Forest, Brandon · East Anglia
5 Jun 2027
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.

West Highland Way Race

Milngavie · Central Belt
19 Jun 2027
95 miles 4,500mof ascentHillyTrail, Moorland150 to 399 runnersBallotQualifierBallot opens in 46d
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