Oner
⚠️ 2027 edition: provisional information
The date is estimated from the 2026 edition (June 6, 2026), on the same day of the week. Courses, start times, fees and description are carried over from the previous edition: check them on the official website. This page will be updated as soon as the organizer publishes them.
Available distances
About
The Oner, at Knoll Beach in Studland, is an 85-mile (136.8 km) endurance challenge along the stunning Jurassic Coast around Portland in Dorset, starting at noon on 5 June 2027. Organised by Epic Endurance Events Ltd in partnership with Votwo Events, it invites around a hundred determined participants to complete the course in under 24 hours.
Recognised as one of the toughest coastal races in the UK, the Oner tests runners over the cliffs, sandy beaches and rugged paths of this UNESCO World Heritage Site. Whether you choose to run, walk or crawl, it promises to be an intense test of endurance, resilience and grit in a uniquely beautiful setting.
Prepare for Oner with RunRun
An AI-generated training plan, adjusted every week based on your real sessions. Built around your goal, current level and race date.
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Races nearby
Other upcoming races around Knoll Beach Studland, United Kingdom.
BigSea - Isle of Purbeck 54K and 18 Mile
Jun 6, 2027 · Knoll Beach Studland, United Kingdom · 0 mi away
13.1 mi · 18 mi · 26.2 mi · 33.6 mi
BigSea Trails (WATER)
Jun 6, 2027 · Studland · 1 mi away
33.6 mi · 26.2 mi · 18 mi · 13.1 mi
Thе ONER - Rаb'ѕ Ultrа - Flіppіn' Hеll
Mar 30, 2027 · Studland · 2 mi away
82 mi · 44.7 mi · 28 mi
Jurassic Express Trail Run
Mar 13, 2027 · Swanage · 4 mi away
13.1 mi · 10.3 mi · 6.5 mi
EnduranceLife | Dorset
Dec 7, 2026 · Durlston · 4 mi away
36.7 mi · 26.7 mi · 13 mi · 6.2 mi
Bournemouth Coastal Ten
Dec 5, 2026 · Poole Lane Heights · 4 mi away
6.2 mi · 10 mi