Trail Running calendar near Sunbury-on-Thames 2026-2027

We have found 436 Trailruns within 80 miles of Sunbury-on-Thames. See below where and when you can find the races.

Experience a scenic run through the historic Richmond Park on this UK Athletics Affiliated course. Choose between a half or full marathon distance following the trails and private roads of London’s largest Royal Park.

Trail races over half marathon and marathon distances take place entirely inside Richmond Park, starting and finishing at Sheen Gate. The course passes gates, lakes and wooded sections and includes several drink and feed stations.

Take on a flat trail run through Alexandra Gardens in Windsor, with the iconic castle as your backdrop. Choose between a half marathon or 10K on this chip-timed course, supported by marshals and finishing with partner goodies.

Take on the Muntjac 15, a 15 mile trail around Danbury Essex with 1600 ft of climbing across scenic woodland and technical singletrack. Enjoy a well stocked checkpoint, a quality memento and bespoke local trophies.

Event Overview The Woldingham Full and Half Marathon is a trail running event with two distances: the marathon (26.2 miles) and the half marathon (13.1 miles). The course starts and finishes at Woldingham School/Marden Park in Caterham. It..

September 2026

Run at sunset through Ickworth Park, a National Trust estate with meadows, forests, and limestone paths. The chip-timed event offers 5k and 10k races, a finisher's medal for all, and trophies for top finishers. Remember to bring your own wa..

Run alongside the Thames at the Henley River event. Choose from a half marathon, a 10K, or a junior race on undulating trails starting at Temple Island Meadows. Participants receive a themed medal, chip timing, and free photos.

The South Coast Ultra Challenge takes place on 5-6 September 2026 through the South Downs National Park. Choose from 100km, 57km, 43km, or 25km routes along the famous South Downs Way. It features full support, camping options, and dedicate..

UTMB Index

A running event at Westonbirt Arboretum on 5 September 2026 with 1 mile, 5 km and 10 km routes through varied tree collections; organised by Relish The Great Outdoors and currently showing tickets as sold out.

Choose a half marathon or full marathon along a flat, scenic riverside towpath from Walton on Thames to Hampton Court and back, run in laps for easy pacing. Limited places and medals for all finishers plus a giveaway for every entrant.

This unique 7km beach run starts at low tide in Broadstairs, goes to Ramsgate's Harbour Wall, and returns. It features team and individual prizes and finishes with refreshments. The event is open to runners aged 15 and over.

Join the Carnival Chase on 6 Sep in Warminster Town Park for 10K, 3K and a 1.2K family, wheelchair and buggy fun run. Enjoy a scenic country lane course by the boating lake, medals for all and a lively event village.

Explore the trails around the mysterious Silent Pool on a guided 10km evening run. The route passes through Netley Heath forest and the village of Shere, with the group running together at a steady pace. Head torches are available for night..

A bi-annual trail series circling scenic Bewl Water reservoir on mixed woodland and country lane terrain. Runners can choose from four distances: 10 km, Half Marathon, Marathon, or an Ultra 50 km. The marathon course is recognised as one of..

Walk, jog, or run along England's greatest river from Putney Bridge to Henley-on-Thames in September 2026. Choose from distances including 100 km, 50 km, or a 10K, with full support and multiple start options. It's a scenic Thames Towpath c..

UTMB Index

The Isle of Wight Fell Series The Isle of Wight Fell Series is a fell running championship series organized in association with Ventnor Fell Running Association. It is run under FRA Rules and incorporates the SEAA Fell Running Championships..

Trail races in Shere, Surrey, with **10k**, **21k** and **42k** routes across the Surrey Hills, chip timing, marked courses, aid stations, an Event Village and free parking. Start and finish at the cricket pavilion.

Ventnor Horseshoe on Sat 12 Sep 2026 offers a scenic but testing 12 km fell course around Ventnor with 443 m of climb. Part of the Isle of Wight Fell Series, it is perfect for runners seeking a tough coastal hill challenge.

Start the IOW Fell Running Series with St Boniface Fell in Ventnor on Sat 12 Sep 2026, a punchy 3.9 km race with 235 m of climbing across scenic Isle of Wight terrain. Pre entry or on the day entries welcome.

The Farnham Pilgrim Marathon takes place in September 2026 near Farnham, Surrey. The course is noted for its spectacular views.