Trail Running Calendar London 2025-2026

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

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

Enjoy a scenic riverside run along the Thames Path with options from 10 km to a full marathon. Flat, runnable routes marshalled and supported with checkpoints, food and medical cover make this a great spring challenge in Barnes.

May 2026

The Thames Path 100 is a 100 mile point to point race along the Thames from Richmond to Oxford. Mostly flat and scenic, runners have 30 hours to tackle a mix of trail and paved sections.

UTMB Index

Tackle a scenic 26.2 mile marathon across three laps of Richmond Park, with rolling hills and beautiful parkland views. Chip timing, aid stations, medical cover and a lively finish make this a rewarding London park marathon for seasoned and..

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

Tackle a full or half marathon along the scenic Vanguard Way, weaving through woodlands, parkland and Greensand Ridge views near Croydon. Finishers receive a medal, mug, buff and post race treats for a memorable day.

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

Enjoy a scenic single lap half marathon through Richmond Park on 13 September 2026, starting and finishing at Sheen Gate. Run 13.1 miles on park paths and the Tamsin Trail with leafy views and on course feed stations.

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.