Trail Running Calendar London 2025-2026

We have found 14 Trailruns in London. Check below where and when you can find the races.

Navigate ancient woodland, parkland and meadows at Dagnam Park in the HAVOC Regional and SWELL orienteering event with waterproof maps and SI timing. Courses suit beginners to experienced orienteers and help and coaching are available.

Explore runnable forest at Shoreham Woods with courses for all abilities and a one hour score challenge. Online entry only; trails are shared with walkers, riders and bikers and have some steep slippery slopes.

Join Carshalton Street O for an evening of score orienteering in the Mole Valley Winter series, starting outside The Hope pub with food and post race refreshments. Pick 60 or 40 minute score courses and use MapRun to time your run.

The RunUk Kingston 10k is a scenic running event starting and finishing at the Kingston Hawker Centre in Surrey. The course takes runners through the streets of Kingston and along the picturesque river towpath, offering a vibrant atmosphere..

May 2026

Take on the Thames Path 100 on 2 May 2026, a point to point 100 mile trail from Richmond to Oxford. Scenic riverside paths, aid stations and a 30 hour limit await as you chase centurion buckles and a memorable university finish.

UTMB Index

Join a scenic 26.2 mile marathon in Richmond Park over three laps of the Tamsin Trail and park perimeter. A 3 mile kids challenge follows, with on course drink stations and medical support for a safe, memorable morning.

June 2026

Join Chase The Sun at Clapham Common on 10 June 2026 for a friendly 5K or 10K on a flat park circuit that passes the bandstand. Enjoy a themed medal, free photos and post race treats in a fun community atmosphere.

Beyond London on 20 June 2026 offers scenic trail runs through parks, woodlands and canal paths, finishing in Richmond. Choose 55 km from Woolwich or 25 km from Upper Norwood, with signed routes, GPX files, aid stations and a finisher medal..

July 2026

The Spitfire Scramble is a unique 24-hour multi-terrain relay or solo race held at Albyns Farm, London Borough of Havering. Participants can run solo or in teams of two to eight, tackling a 5.75-mile lap repeatedly through day and night. Th..

Experience a scenic loop around Aske Hall estate near Richmond on 23 July 2026, with 5 km and 10 km trail options. Limited to 200 entries, the mostly flat single loop winds through pasture and woodland for a relaxed but rewarding race day.

August 2026

Run the Vanguard Way Marathon or Half on 2 August 2026 from Croydon along scenic Surrey and Sussex woodlands and ridges. Finishers receive a medal plus a goody bag with a race t shirt and snacks.

September 2026

Run along iconic Thames towpaths from Putney to Henley in the Thames Path Ultra Challenge, with distances from 10 km to 100 km across one or two days. Enjoy riverside scenery, generous support stations and a friendly festival atmosphere.

A scenic 13.1 mile trail through Richmond Park, starting and finishing at Sheen Gate. Rolling trails, lakeside views and woodland wildlife make this a refreshingly classic half marathon for runners of all levels.

October 2026

Take on the scenic 50 km challenge through Epping Forest in London on 3 October 2026. Enjoy sweeping trails, leafy views and a rewarding long distance test for experienced runners.