Trail Running Calendar London 2025-2026

We have found 11 Trailruns in London. Check below where and when you can find the races.

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..

December 2025

Middlesex Cross Country Championships return to Hillingdon Sports and Leisure Centre in Uxbridge on Saturday 13 December 2025. Youth and senior races from 2k to 12k, chip timed, open to clubs, schools and individuals.

March 2026

Join Thames Meander Spring for flat, runnable riverside routes along the Thames Path from Small Profit Dock Gardens. Choose 10km, half marathon or marathon on marked, marshalled courses with stocked checkpoints and professional medical supp..

May 2026

Take on the Thames Path 100, a 100 mile point to point run from Richmond to Oxford along the scenic Thames with marked trail, plentiful aid stations and a 30 hour time limit. A classic endurance test for experienced runners.

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 an evening 5K or 10K on a flat, scenic park course past the bandstand. Expect chip timing, free photos and a unique themed medal to celebrate your finish.

Beyond London on 20 June 2026 offers 55 km and 25 km trail races along the Capital Ring through London parks. Expect scenic miles past Eltham Palace, Wimbledon Common and Richmond Park with aid stations and a Richmond finish.

August 2026

Run the Vanguard Way Marathon or Half in Croydon on 02/08/2026 and enjoy a scenic route through parkland, woods and rolling countryside. Finish with a medal, goody bag and post race treats to celebrate your achievement.

September 2026

Take on the Thames Path Ultra on 12 and 13 Sep 2026, with continuous or two day routes from Fulham to Henley along scenic Thames. GPS tracking, signed support, medical care and on route massage plus a medal, T shirt and finishers meal await..

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.