Trail Running Calendar South East (England) 2026-2027

Point to point trail races on the South Downs Way offering a 50 mile ultra, a 50 km ultra and a marathon with marked routes, aid stations, coach transfers and an option to plant a tree instead of taking a medal.

A trail running event at Stansted Park near Portsmouth offering three waymarked distances through woodland, open fields and past the historic Stansted House. Entries include chip timing, a metal finisher medal and on-course refreshments.

Looped races at Chalfont Park Sports Club and Chalfont St Peter Community Centre let runners choose distances from single 7K or 10K laps up to ultramarathons, with drop bag access, aid stations, crew support and on-site medical cover.

Trail running at Matterley Basin on 20 March 2027 with three route choices through South Downs chalk downland, woodland and ridgelines; marked courses, hydration outposts and free parking.

A guided trail half marathon around the Surrey Hills, about 13 miles from St Martha's Hill in Guildford, following parts of the North Downs Way and notable viewpoints. The run is social in format with a guided pace and evening options.

Seven consecutive days of timed running on certified out and back routes along the River Thames in Walton on Thames. Distances from 5 km to ultra are available and finishers earn daily mementos plus a seven day lantern medal set.

A two lap multi terrain 10 km trail race on Easter Monday around Mortimer Fairground and local woodlands, with a canicross option, chip timing, medal and free race photos. The undulating course is not suitable for pushchairs or wheelchairs.

The Brighton Marathon Weekend will take place in Brighton from Saturday 3 April 2027 to Sunday 4 April 2027. You can run between 10 and 42 kilometers.

A single-loop 50 km trail race around Arundel and the South Downs with four aid stations, about 3,200 ft of ascent, UTMB Index status and live GPS tracking.

A 40 or 50 mile trail ultra along the Testway from Linkenholt to Totton in Southampton, with aid stations every 10 miles, marshals and medical support. A shuttle option is available for an extra £10 and there is a 14 hour cutoff.

Three trail routes at Stanmer Park on 3 April 2027 across the South Downs Way, with varied terrain, marked aid outposts and timed results.

A 42 km trail to road marathon across the South Downs featuring an ascent of Ditchling Beacon and a final 6 km into Hove Lawns on the Brighton Marathon course.

Scenic mixed terrain races along the Thames at Remenham Farm in Henley on Thames. Options include a Half Marathon, a 10K and a Junior Race with marked trails, marshals, chip timing and post race goodies.

A 50 mile point-to-point race along the South Downs Way from Worthing to Eastbourne, featuring about 5,700 ft of climb, seven staffed aid stations, mandatory kit checks and a 13 hour finish limit.

Four Centurion Running 50 mile events from 10 April to 13 November 2027 as a Grand Slam entry; entry fee £480, minimum age 20, XCover refund option available.

A round of the Kent Backyard Ultra Series at Lillyroo’s Glamping near Deal, run on a flat 4.167 mile coastal loop. The event offers the open-ended Backyard Ultra format plus a separate 7 Hour Challenge and on-site camping and food.

Races on the Thames Path at Wraysbury Skiff & Punting Club in Runnymede offering Marathon, Half Marathon and 10 km courses with marked turnaround points and stocked checkpoints.

A trail weekend at Cowdray Estate, West Sussex offering five distances from 12 km to 110 km, low technical difficulty, an event village with expo, and optional camping and race support.

A 50K trail ultra across the Ridgeway between Berkhamsted Castle and Wendover, with three aid stations, marked navigation and a 9 hour limit.

Windsor 50 Ultra Challenge on 17 April 2027 offers 50 km, 25 km and 10 km looped routes from Windsor Racecourse with full support and marked trails.