The Oner is 84 miles from Charmouth to Studland, over the world famous Jurassic coastline. A strict 24 hour time limit applies to complete the course. Self-navigate to check points along the coastline through the day and night. There is also a Third and Half ONER if you aren’t quite ready for the full distance.

With over 9,000 feet of elevation on the full course, you will definitely need to get your hill training in for this event. And if the hills don’t get you, the hundreds of steps will… Half of this event will be in the dark, so make sure your navigation is on point, otherwise you may find yourself in a random field, a decent head torch is a must.Nothing can prepare you for the coast path mud in April. This is not a race for road shoes, you need all the grip possible.