Trail Running Calendar South East (England) 2026-2027

A single-loop 50 km trail race around the South Downs, starting and finishing in Arundel. Mostly trail with about 3,000 ft ascent, four aid stations, live GPS tracking and UTMB Index status worth 2 ITRA points.

Experience a scenic 16 mile multi terrain race through the Berkshire and Hampshire countryside. This undulating cross country course offers bus transport to the start and kit transfers for all participants.

Take on the Gauntlet Treasure Run along a flat riverside towpath in Walton on Thames, doing laps of a 5.3 km out and back to build any distance from 5k to ultra within seven hours. Limited places and every finisher gets a medal.

Choose your distance on the day with these flexible loop based races in Buckinghamshire. Run anything from 7km to an Ultra Marathon on scenic trail and road routes with full support and central aid stations.

Experience a premier multisport challenge at the Culden Faw Estate featuring road and offroad duathlons plus a six hour endurance race for all bike types.

Enjoy a flexible 7 hour time challenge along the scenic River Thames at Runnymede. Choose your own distance from 3km to ultra marathon and earn a unique Easter egg medal and goody bag.

A trail ultra in Hampshire on 4 April 2026 with 50 mile and 40 mile route options along the Testway. Aid stations every 10 miles, marshals and an on course medical team provide support and an optional shuttle returns runners to the start.

Take on the Unbreakable Treasure Run on 5 April 2026 at Xcel SPORTS HUB, Walton on Thames, running timed laps along a flat riverside towpath from 5 km to ultra. Limited places and a 7 hour time cap make this a focused challenge with a keeps..

Join this Easter Monday tradition in Berkshire featuring a 10km off road course through local woodlands. Participants can choose between a standard foot race or a dog friendly canicross event starting from the Mortimer Fairground.

Experience a scenic 8 mile multi terrain circuit in Freshwater featuring 900 feet of ascent and coastal views. This hilly course takes runners past Tennyson Down and Alum Bay with professional timing and finisher rewards.

Experience a scenic 5 mile trail loop through the private Hall Barn Estate in Beaconsfield. This chip timed race features mixed terrain and finishes with a medal and awards ceremony at the local rugby club.

Test your endurance with the 50 Mile Grand Slam 2026. This comprehensive series includes four iconic 50 mile races across the South Downs, North Downs, Chilterns, and Wendover Woods.

A 50 mile ultramarathon along the South Downs Way National Trail from Worthing to Eastbourne. Experience 5,700 feet of elevation gain across rolling chalk paths and finish with a lap of an athletics track.

Experience a scenic mixed terrain race along the banks of the Thames in Henley on Thames. Choose from a half marathon, 10K, or junior race starting at the iconic Temple Island Meadows.

Experience the rare heathlands of the Cowdray Estate with trail runs ranging from 3km to 10 miles. This dog friendly event offers a unique journey through the South Downs National Park and protected nature conservation sites.

Trail races on the South Downs Way around Stanmer with 21 km, 14 km and 5 km options. Routes pass Ditchling Beacon and include chip timing, a finisher medal, GPX files and on-course support for the longer distances.

Experience the scenic Hampshire countryside with a choice of a ten kilometer trail run or walk and a vibrant kids colour run in the heart of Froyle village.

A seasonal trail run series at Cowdray Estate offering 5 km, 10 km and 10 mile races across spring, summer, autumn and winter, with a summer evening event that includes a BBQ, bar and spot prizes.

Experience a unique 42km journey starting in the woodland trails of Stanmer Park and the South Downs before joining the road for a grand seaside finish at Hove Lawns.

Join PHOENIX Fridays Run for a Tenner for a relaxed timed riverside run with flexible rock up and run starts supporting Rays of Sunshine. Choose distances from 5 km to ultra and earn a special medal on a flat towpath.