Trail Running Calendar London 2025-2026

The Hooded Horse Fell Race is a challenging off-road running event held in Kilburn, North Yorkshire, entirely within Kilburn Wood. Covering approximately 10.7 km with 390 meters of elevation gain, it is classified as an FRA BM race requiring navigational skills. The course features woodland trails,..

The Centurion Thames Path 100 is a prestigious 100-mile trail race that takes place along the scenic Thames Path, stretching from Richmond in South West London to Oxford. This event, held annually, features a flat and fast course with a total elevation gain of 1900 feet. Participants must complete t..

London 100 is an ultramarathon event organized by Camino Ultra, designed to challenge runners and enhance their endurance skills. Participants will have the opportunity to explore new trails while pushing their limits in a supportive community atmosphere. The event emphasizes personal growth and per..

The Richmond Park Marathon is a scenic 26.2-mile running event held in Richmond Park, featuring a challenging course that consists of three laps. The first lap is 12 miles, encompassing a route around the park's perimeter and through its center, while the subsequent two laps follow the Tamsin trail,..

The Dagenham 88 Runners 5 - ELVIS #1 event is scheduled for May 21, 2025, featuring a 5-mile multi-terrain race at Eastbrookend Country Park in Dagenham. This race is part of the ELVIS 2025 series and will take place on a new course layout. Participants can expect a lively atmosphere with refreshmen..

The London 2 Brighton Ultra Challenge is a popular endurance event offering various distances, including a full 100 km route from Richmond to Brighton. Participants can walk, jog, or run through scenic Surrey and Sussex countryside, crossing the North and South Downs, with support and hospitality pr..

The Grand Union Canal 145 Mile Race is a prestigious ultra-marathon taking place along the scenic Grand Union Canal Towpath from Gas Street Basin in Birmingham to Little Venice in London. Scheduled for May 2025, this non-stop race is open to participants aged 20 and over, welcoming runners of all ab..

The Jubilee Hall Trust's "Run for Your Life" event is set to take place in June 2025 at Hampstead Heath, London. This annual running event features 10K, 5K, and 2K courses, catering to participants of all abilities, including families and beginners. Runners will enjoy scenic trails with stunning vie..

The Orion Harriers Forest Five is a series of annual one-mile races held on the first Saturday of June, July, and August at Jubilee Retreat in Chingford. Established in 2009 to support the construction of the Orion clubhouse, the series offers a competitive yet friendly environment for runners of al..

Stately Trails: Forcett Park is an outdoor running event scheduled for June 12, 2025, set in the historic Forcett Park estate in North Yorkshire. Participants can choose between a 5km or 10km course, both featuring scenic trails through pasture fields, woodland, and farm tracks, with some muddy sect..

The John Clarke Memorial Race will take place in London on Friday 20 June 2025.

Beyond Trails London is an exciting trail and ultra running event set to take place in June 2025. Participants can choose between a 25km trail route or a challenging 55km ultra route, both of which explore hidden trails and iconic sights around London. The event emphasizes inclusivity, welcoming run..

The Triffic Trail is an annual running event held in the scenic Trent Country Park, Enfield, London. It features a variety of courses, including a 10 km senior race, a 4.5 km junior race for participants under 18, and a 4.5 km fun run for those under 12. The event caters to all levels of runners, fr..

The Spitfire Scramble is London's only 24-hour trail running event, held at Hornchurch Country Park, the historic site of RAF Hornchurch. Participants can compete solo or in teams of two to eight, aiming to complete as many 5.75-mile laps as possible within 24 hours, from midday Saturday to midday S..

The Orion Harriers Forest Five Series 2025 is a series of mile-long races held on Saturday mornings at Jubilee Retreat. The second race takes place on July 5th, 2025, and features a friendly atmosphere amid forest surroundings. The event is part of a fundraising effort for the Orion Harriers clubhou..

Stately Trails: Aske is a running event set in the picturesque grounds of Aske Hall, a Georgian country house located near Richmond, North Yorkshire. Participants can choose between a 5km or 10km race, traversing beautiful trails that include pasture fields, farm tracks, and woodlands. The course is..

The Kennet & Avon Canal 145 Mile Race (KACR) 2025 is a non-stop ultramarathon from Little Venice, London, to Bristol, following canal, river, and railway paths. Organized under UK athletics rules, it features a scenic route passing through English countryside, including the famous Caen Hill flight o..

The Round the Rock will take place in Morden on Saturday 2 August 2025. You can run 46 miles.

The Orion Harriers Forest Five Series 2025 is a series of mile-long races held on Saturday mornings, starting at 10 am. The series began in 2009 to support the construction of the Orion Harriers clubhouse at Jubilee Retreat. The 2025 races are scheduled for June 7th, July 5th, and August 2nd, with t..

The Vanguard Way Marathon is a scenic running event that follows part of the 66-mile Vanguard Way route from East Croydon to Newhaven on the South Coast. Held annually, it offers both full (26.2 miles) and half (13.1 miles) marathon distances, attracting runners and walkers alike. The course showcas..