Trail Running Calendar South East (England) 2026-2027

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.

A trail running event at Stanmer Park on the South Downs Way with three routes from 5 km to 21 km, varied terrain, marked and timed courses, refuelling outposts, and on-site services including photography and a finishers medal.

A 42km off road marathon from Stanmer Park across the South Downs to a finish on Hove Lawns. The route includes Ditchling Beacon and joins the Brighton Marathon for the final 6km.

A mixed-terrain race day on 10 April 2027 at Remenham Farm, Henley-on-Thames, offering a half marathon, 10K and junior out-and-back along the River Thames.

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 fifty mile Centurion Running races held from 10 April to 13 November 2027 on South Downs Way, North Downs Way, Chiltern Wonderland and Wendover Woods. Entries are processed through SiEntries.

A multi-distance trail event on 17 April 2027 at Cowdrey Estate, Midhurst. Organised by Ultra X, routes pass through greensand hills, river, woodland and lowland heath in the South Downs National Park. Multiple entry categories are availabl..

A 50K trail ultra across the Chiltern Hills from Berkhamsted Castle to Hampden Meadow in Wendover, following ridgeline trails with three checkpoints and full route marking. The event includes on course nutrition, chip timing and a nine hour..

Windsor 50 is a supported trail event from Windsor Racecourse offering 50 km, 25 km and 10 km looped routes through the Great Park, past Windsor Castle and along the Thames Path, with rest stops, medical teams and GPS tracking.

Three days of races across East Grinstead, Haywards Heath and Burgess Hill with 10 mile and 10k events, a chip timed mile, family fun runs and options for a combined full marathon or a virtual marathon.

Ibstone Circle on 18 April 2027 offers multi-terrain 5 km and 10 km routes through Wormsley Estate with a steep section called the Ibstone Kicker, plus a children s Run In Colour with 1 km and 2 km options.

A multi-distance canal and riverside ultraseries based at Streatley-on-Thames, featuring TR250, TR150 and TR100 with GPS tracking, checkpoint support and required navigation using provided GPX files and maps.

A blindfolded navigation challenge in Winchester where participants are dropped at unknown locations and must find their way back on foot. Options include 6 miles for visitors and 10 or 15 miles; no maps or GPS and a sealed emergency bag is..

An alternative to the London Marathon at Walton on Thames featuring a UKA certified 3.28 mile lap. Options include full and half marathon or a seven hour timed event, with a 150 mm finish medal for participants.

A five mile off road race through woods and farmland around Hurstbourne Tarrant in the North Wessex Downs. Organised entirely by volunteers since 2009, the annual event donates all proceeds to local charities.

A combined entry for four Centurion Running 100 mile events across 2027, covering Thames Path, South Downs Way, North Downs Way and Autumn 100. Entries open 31 May 2026 with a minimum age of 20 on 1 May 2027.

Three Forts Challenge is a Sussex trail running event across the South Downs from Lancing Manor Leisure Centre. It offers a full marathon, half marathon and a 5 mile run, and directs event profits to Ferring Country Centre and local chariti..

A woodland trail relay at Culden Faw Estate near Henley on Thames offering solo, pair and team entries with camping available. The course uses estate tracks, features a climb before 3 km and is chip timed with live lap splits.

The Harewood Forest Trail Race will take place in Wherwell on Monday 3 May 2027. You can run between 5 and 10 kilometers.

A two day two person team self-supported navigation and endurance challenge based at Newlands Corner in the Surrey Hills. Teams carry their own camping and food and score points by visiting virtual controls during timed sessions on both day..