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Small-field UK ultras

Under 400 runners. Quieter start lines, fewer people at the checkpoints, and long stretches where you will not see anybody.

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+

Specific month

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Other

Dates confirmed by organiser Part of a series
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3 events · 7 races

Dragon's Back Race

Conwy Castle · Eryri / Snowdonia
7 Sept 2026 to 12 Sept
380km over 6 days · Choose your own, roughly half of each day · 137km over 2 days · 110km over 2 days16,600mMountainousMountain, Fell150 to 399 runnersFirst come first servedEntry open
Entry details confirmed with the organiser on 15 August 2026.

The Hardmoors 55

Guisborough · North York Moors · Hardmoors
20 Mar 2027
55 miles2,700mMountainousTrail, 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
1,960mHillyTrail50 to 149 runnersQualifying standardQualifierDate unknown
Entry details confirmed with the organiser on 15 August 2026.

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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 UK
Small-field UK ultras | Ultralist