Trail Running calendar near Chalfont Saint Peter 2026-2027

An evening trail race of **10 km** on the original anti-clockwise course, with a GPX route, event T-shirt, timed finish and post-race coffee and cake.

A 7 hour timed riverside challenge in Egham with a 3 km minimum to earn a themed medal, goody bags including a vegan option, distance pins and aid stations. Flexible distances from 3 km up to ultra distances under age rules.

Trail races at Wendover Woods feature a half marathon, 10k, 5k and junior race across steep woodland with 181 m of climb. Entries include a themed medal, free photos, chip timing and post race goodies.

About 52 miles across the South Downs National Park, a circular challenge from Plumpton Agricultural College visiting Lewes, Glynde and Alfriston with about 7,000 feet of ascent.

A ten day running series in Walton on Thames from 22 to 31 August 2026 offering daily themed rubber ducks and ten giant spinning ducky medals, with distances from 5 km to ultra and certified out-and-back routes along the Thames towpath.

The Seven Sisters 10K Run/Walk will take place in Birling Gap on Saturday 22 August 2026. You can run 10 kilometers.

Combined half and full marathons run through Richmond Park on 23 August 2026, using a lap route from Sheen Gate that follows the Tamsin Trail with aid stations and finishers receiving a medal, mug and buff.

Point-to-point mixed terrain running from Mayflower Park following the Old Way pilgrim trail, with 15 Mile and Marathon options. The route includes a short boat crossing of the Hamble River and passes several historic landmarks.

Trail running from Lancing College across the South Downs with 5K, 10K, Marathon and 50K routes, marked courses, aid stations and chip timing.

Half and full marathons in Richmond Park on 23 August 2026, with multi-lap routes along the Tamsin Trail, refreshment points and UK Athletics affiliation.

A trail run entirely within Richmond Park offering half marathon and marathon distances, a route past the White House and park lakes, and on-course drinks and feed stations.

A self navigation trail event along the Colne Valley Path with marathon and half marathon distances, stocked aid stations, cupless arrangements, a pre-race shuttle and optional medal choices.

Functional fitness race at Mountbatten Centre Portsmouth on 23 August 2026 combining ten Xercises with options for 10x400m or 10x800m runs and solo, doubles or relay entry formats.

A steep, scenic trail run in Godshill offering a 5K one-loop option and a 10K two-loop option with 738 ft of climb. A relaxed community fundraising event with no chip timing and local charity support.

A trail half marathon from Creasey Park across the Dunstable Downs, run mainly on footpaths and bridleways. The self navigated course includes checkpoints and guide runners, a GPX file, on course drink stations and event facilities.

A **7.5 km** mostly off road trail loop around Ticehurst with marked and marshalled course, limited entries, prizes and tea and cake after the race.

Timed laps around Ardingly Reservoir with distances from 5 km to ultra, flexible morning starts, chip timing and bespoke finisher medals.

Two self-navigation trail races in Chelmsford on 23 August 2026: the hilly Admiral McHilly Trail of about 16 miles and the flatter Chelmer Trail of about 6 miles, with written route instructions and no course markings.

Guided group trail run of 10 km through High Lodge in Thetford Forest, led at a conversational pace with groups based on ability. Mostly flat woodland terrain, trail shoes recommended; parking costs £3 and the entry fee is £12.50.

A last man standing backyard ultra on a 4.167 mile loop in the grounds of Gosfield School, Essex. Runners repeat the loop on the hour until one remains; the event includes camping, showers, a small aid station and a £150 winner prize.