Trail Running calendar near Grafham Water 2026-2027

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.

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.

A new fell race from Sinfin Running Club around the Chevin covering 8.9 km with 315 m of climb. The marked course uses two short loops and a figure of eight and includes some short road sections.

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.

A 50km ultra along the River Medway from Rochester to Tonbridge, mostly on marked towpaths and trails and passing three medieval castles. The event includes three aid stations, live timing, bag transfer and a strict nine hour cut off.

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 functional fitness race at Twickenham on 30 May 2026 combining ten set Xercises with running. Entries are Solo, Doubles or five-person Relays, with classic and double-distance options and a LITE weight division.

A Pretty Muddy 5k obstacle event at Royal Windsor Racecourse on 30 May 2026, featuring muddy obstacles to climb, crawl and slide. Participants must be 13 or older; there is a minimum fundraising target and on-site support and facilities.

Timed 4.2 mile (6.7 km) laps run on the hour at Redbridge Cycling Centre on a 2 km tarmac loop. Competitors must finish each lap within the hour and the last runner standing is declared the winner.

A mixed terrain half marathon and 10k in England on 30th May 2026. Routes mix quiet country roads and off road sections, and the event raises money for local good causes.

A track running event at Wodson Park on 31 May 2026 with distances from 5k to a six hour challenge. Chip timing, aid stations, a bespoke medal and limited entries are provided.

A memorial trail run of about 5.5 miles from Worksop College into Clumber Park on 31 May 2026, with marshalling, first aid support and a finisher medal. All profits are donated to Cancer Research.

A 5k, 10k and junior race at Sixfields Stadium in Northampton on Sunday 31 May 2026. The start and finish are inside the stadium and the route continues on closed roads around the town.