Centaur 100 Mile Ultra

Dorking, United Kingdom • 20-21 Jun 2026

The Centaur 100 Mile Ultra, hosted by Phoenix Running, is a unique 100-mile trail running event held at Denbies Wine Estate in Dorking, Surrey. Designed for both seasoned ultra runners and first-timers, the race features a flat-ish, single 1-mile loop course through the scenic wine estate trails. Participants have up to 30 hours to complete the distance, with options to run 12 or 24 hours, 50 miles, 75 miles, marathons, or half marathons simultaneously, creating a vibrant festival atmosphere. The event is inclusive, friendly, and fully chip-timed, offering well-stocked aid stations and a memorable Centaur medal and buckle for finishers. Visit the organization's website for the most recent information.

Race information

24 km
12/24 Hour Event
100 mi
100 Mile Ultra
75 mi
75 Mile Option
50 mi
50 Mile Option
42 km
Marathon
21 km
Half Marathon
Visit the organization's website for the most recent information.
Trail runs nearby

The Windsor & Eton 10km is a scenic multi-terrain trail run held in the historic Royal town of Windsor, starting and finishing near the Windsor & Eton Brewery by the River Thames. The pancake-flat course covers 10 kilometers, featuring towpaths, footpaths, and short road sections through areas inclu..

The SEOUL Urban Epsom is a Level B urban orienteering event held in the historic spa town of Epsom, known for its racecourse and scenic North Downs views over Central London. The event features multiple courses ranging from 2.0 km for young juniors to 11.4 km for men's open, with varied climbs and t..

The Woldingham Full and Half Marathon, staged by 1 Mile Events, takes place at Woldingham School in Caterham, Surrey. It offers a Half Marathon (13.1 miles) and Full Marathon (26.2 miles). Both routes are out-and-back: the half runs one loop, the full two loops. Starting from the school, runners tra..

The London Backyard Ultra is a unique endurance running event held at Frylands Wood Scout Outdoor Centre in Croydon, London. Participants run a four-mile loop every hour on the hour, continuing until only one runner remains, testing their true limits. The event offers a challenging yet supportive at..

The Shere 42k, 21k & 10k Multi Terrain Event is a trail running series held in the scenic Surrey Hills, an Area of Outstanding Natural Beauty. The event offers three distances: a 10k route with 123m ascent through woodlands, a new 21k half marathon featuring parts of the North Downs and Ranmore with..

The Farnham Pilgrim Half Marathon is a challenging trail half-marathon set in the Surrey Hills around Farnham, with The Sands opposite Farnham Golf Club serving as the event hub. The mostly off-road, multi-surface course winds through scenic countryside with outstanding views and a notably hilly pro..