Trail Running Calendar London 2025-2026

We have found 16 Trailruns in London. Check below where and when you can find the races.

Run for Movember at Ham Street Riverside with 1.5 km, 10 km and half marathon routes on a flat trail. Chip timed results, medals for all and quirky prizes for best dressed and fastest moustache make it fun for families, dogs and wheelchairs..

December 2025

Join the Phoenix Running Bobble Wobble Run at Crystal Palace Park for a timed multi lap challenge on park trails. Run as many 1.65 mile laps as you can in seven hours and collect a finishers medal and Phoenix bobble hat.

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.

February 2026

The Phoenix Running - Greater London will take place in Greater London on Sunday 15 February 2026. You can run between 3 and 28 miles.

March 2026

Scenic riverside race series based in Barnes offering 10 km, half marathon and marathon routes along the Thames Path on out and back loops. Marshals, stocked checkpoints and KLP medical teams keep runners safe and fueled.

May 2026

Run the iconic Thames Path 100 mile from Richmond to the university city of Oxford, following riverside trails and quaint towns. Enjoy a scenic point to point challenge with a 30 hour cutoff and full aid support.

UTMB Index

Take on a scenic 26.2 mile marathon over three laps of Richmond Park, blending perimeter roads with the Tamsin Trail for varied, tree shaded running. Chip timing, marshals and aid stations ensure a well supported race day.

Discover Ealing on foot at the Queen of the Suburbs Ultra, a single borough trail event offering a scenic 50k ultra and a friendly 25k loop. Wind through parks, canal paths and Horsenden Hill for leafy views across west London.

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 on 02/08/2026 along an undulating, scenic route through parkland, woodland and the North Downs. Finishers receive a medal, race t shirt and goody bag while enjoying views from Selsdon Wood to Limpsfield..

Thames Meander follows the scenic Thames Path for 10K, half marathon or marathon out and back routes between Barnes and Petersham. Expect towpath and trail underfoot, friendly marshals, checkpoints with fuel and professional medical cover.

September 2026

Run the Thames Path towpath from Putney/Fulham to Henley on Thames with distances from 10 km to 100 km and options for continuous or two day stages. Enjoy riverside scenery, support stops, camping and a lively weekend festival of river even..

UTMB Index

Run 13.1 miles through the beautiful woodland and lakes of Richmond Park in this scenic half marathon. Enjoy varied trails, park views and a friendly atmosphere as you tackle rolling terrain and finish back at Sheen Gate.

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.

Enjoy a scenic riverside run on the Thames Meander Autumn on 4 October 2026, a flat and fast towpath course with 10 km, half marathon and marathon options. Well stocked checkpoints and marshals keep you fuelled and supported.