Trail Running calendar near Oxfordshire 2026-2027

Experience the twilight beauty of Ardingly Reservoir during this sunset run in West Sussex. Choose between a 5km or 10km distance on a scenic undulating trail and enjoy a timed midsummer evening event with finishers medals.

A Backyard Ultra at the Lower Red Lion where runners complete a 4.167 mile loop every hour until one remains. Individual entries only, limited to 90, with part of the entry fee donated to local charity Youth Talk.

A muddy 5k obstacle event at Clapham Common with climbs, crawls and slides, wave starts and a minimum age of 13. The event lists facilities such as toilets and refreshments and carries a fundraising target of £50.

A trail marathon in Richmond Park covering 26.2 miles over three laps with start and finish near Sheen Gate. The route is waymarked and supported by drink stations, chip timing, medical cover, marshals and a baggage area.

A trail run and walk through Ealing's parks, greenways and blueways offering 25k and 50k routes. Organised by the charity We Run Ealing, the event starts at Boston Manor Park, finishes at Dicken's Yard, and includes a medal.

An ultra trail event on 24 May 2026 from south of Salisbury to Kimmeridge Bay, offering 100K, 50K and 30K courses with varied terrain, marshals, aid stations, mobile medics and finisher medals.

A chip timed *10k* trail run on 24 May 2026 that starts and finishes at Bredon Cricket Club. The marshalled route climbs to the 299 m summit of Bredon Hill and all finishers receive a medal.

Crocodile 8 on 24 May 2026 is a hilly trail and tarmac race around Tillington and Burghill with music en route and an after-event party at Burghill Community Academy. Senior and junior distances are available.

Trail and coastal running from Chelmsford to Tollesbury with half and full marathon options, regular aid stations and a bag transfer service. Toilets are available at key points and the event operates a cupless water policy.

A muddy 5 km obstacle course at War Memorial Park in Basingstoke on 24 May 2026, where participants climb, crawl and slide across mostly flat grass and path terrain while raising funds for cancer research.

A self-navigation trail race at the Green Man in Toppesfield on 24 May 2026 offering approx 10 miles and 6.2 miles. The event follows UK Athletics rules, uses a written route description and has limited parking.

A 10 km trail race at Marlow Rugby Club on May 25, part of the Ales & Trails series, featuring trails, woodland and Thames towpath. Entry includes a medal, a Rebellion pint cup and a free drink at the finish.

An off-road race in Dursley on 25 May 2026 covering about 10.31 km with 318 m of climb, visiting Cam Peak, Cam Long Down, Uley Bury and Downham Hill. Entries are limited to 120 and handled via Entry Central.

A timed Friday event on a flat 5.3 km out-and-back course along the river Thames, with lap-based distances from 5 km to ultra and a £10 Run for a Tenner entry benefiting Rays of Sunshine.

An in-person 8 km trail loop around Calke Abbey nature park, meeting at Ticknall Village Hall Car Park. Organised by Run 4 U and Perform Running Club, with free parking and refunds available up to one day before the event.

A 50 km multi terrain ultramarathon around Maidenhead, run on a single lap route that follows the Thames Path and Jubilee River. The course is mostly off road with four aid stations, chip timing, live tracking and free race photos.

An 86 miles (139 km) point to point trail race along the full length of The Ridgeway National Trail from Ivinghoe Beacon to Avebury Stones. The event features open tracking, permanent signage and aid stations spaced along the route.

Inflatable 5K in Bristol on Saturday 30 May 2026 offers 2.5 km laps with options of 2.5 km, 5 km, 10 km or 15 km across large inflatable obstacles and five music zones. The event is untimed and includes a finisher's medal and water stations..

A 60 km point to point ultramarathon along the Ridgeway National Trail from Ivinghoe Beacon to near Wallingford, featuring open tracking, four aid stations and a 10 hour time allowance. Entries close 17 May 2026.

A reworked May 2026 50 mile trail around Telford passing Ironbridge and the Wrekin, with four checkpoints, recommended trail shoes and a 9PM cut off. Participants report good waymarking and well stocked aid stations.