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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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Terrain

TrailFellMountainMoorlandCoastal pathForestCanal & towpathRoad

Hilliness

FlatRollingHillyMountainous

Format

Single stageStageTimedBackyard

Entry mechanism

First come first servedBallotQualifying standardInvitational

Field size

Under 5050 to 149150 to 399400 to 9991,000+

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Dates confirmed by organiser Part of a series
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7 events · 13 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.

Gullane 8-hour Challenge

Gullane · Central Belt
27 Feb 2027
Open ended - 8 hoursCoastal path, TrailEntry open
Entry details as published by the organiser, checked 15 August 2026.

St Peters Way Ultra

Ongar · Home Counties
28 Feb 2027
42 milesEntry not yet open
Entry details as published by the organiser, checked 15 August 2026.

Butcombe Trail Ultra

Mendip Activity Centre, BS25 5PQ · South West
17 Apr 2027
1,960mof ascentHillyTrail50 to 149 runnersQualifying standardQualifierEntry 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.

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.

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