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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
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EntryEntry open nowOpens in 30 daysBallotNo qualifier
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Hilliness

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Field size

Under 5050 to 149150 to 399400 to 9991,000+

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2 events · 3 races

Thames Trail Ultra

Mercure Oxford Hawkwell House Hotel, Church Way, Iffley, Oxford OX4 4DZ · Chilterns
24 Oct 2026
289mof ascentFlatTrail, Coastal pathFirst come first servedEntry not yet open
Entry dates not yet known.

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.

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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 UKSmall-field UK ultras
UK ultra marathons: the full list | Ultralist