Trail Running calendar near Dunstable Downs 2026-2027

A timed, flexible run along a 3.28 mile out and back route beside the Stroud Waterways canal. Runners choose distances from 5 km up to ultra and may complete as many laps as they wish within a seven hour limit.

Seven hour timed challenge on a signed Thames-side course at Wraysbury Skiff & Punting Club with flexible starts, medals for 3 km finishers, goody bags including a vegan option, distance pins and on-course aid stations.

Trail races at Wendover Woods feature a half marathon, 10k, 5k and junior race across steep woodland with 181 m of climb. Entries include a themed medal, free photos, chip timing and post race goodies.

A 52 mile LDWA challenge across the South Downs from Plumpton College, with 7,000 ft of ascent, seven staffed checkpoints and provided route materials. Navigation is required and the event is a qualifier for LDWA Jurassic Hundred 2027.

A ten day running series in Walton on Thames from 22 to 31 August 2026 offering daily themed rubber ducks and ten giant spinning ducky medals, with distances from 5 km to ultra and certified out-and-back routes along the Thames towpath.

Combined half and full marathons run through Richmond Park on 23 August 2026, using a lap route from Sheen Gate that follows the Tamsin Trail with aid stations and finishers receiving a medal, mug and buff.

Point-to-point mixed terrain running from Mayflower Park following the Old Way pilgrim trail, with 15 Mile and Marathon options. The route includes a short boat crossing of the Hamble River and passes several historic landmarks.

A South Downs trail running event based at Lancing College offering 5K, 10K, Marathon and 50K routes across grassy trails, chalk paths and ridgelines, with marked, chip-timed courses and aid stations.

Experience a scenic run through the historic Richmond Park on this UK Athletics Affiliated course. Choose between a half or full marathon distance following the trails and private roads of London’s largest Royal Park.

A trail run entirely within Richmond Park offering half marathon and marathon distances, a route past the White House and park lakes, and on-course drinks and feed stations.

A self navigation trail event along the Colne Valley Path with marathon and half marathon distances, stocked aid stations, cupless arrangements, a pre-race shuttle and optional medal choices.

A functional fitness race at Mountbatten Centre Portsmouth on 23 August 2026 offering Solo, Doubles and Relay options across ten Xercises with 400m or 800m run intervals; entrants must be 18 or older and a LITE weight division is available.

A *10 km* trail run on 23 August 2026 over the original, mostly anti-clockwise course. Entry includes a limited edition event T-shirt and finishers’ coffee and cake; race numbers and mobile phone ICE are required.

A trail half marathon across the Dunstable Downs on 23 August 2026, starting from Creasey Park in Dunstable. The self navigated route includes checkpoints, guide runners and a GPX file and offers on site facilities and a finisher medal.

A small field trail race around Ticehurst covering 7.5 km of mainly off road trail, with course marshals, prizes for first male and female, post-race tea and cake, and an entry limit of 60 runners.

A timed, multi-distance event at Ardingly Reservoir with lap-based 7 km out-and-back course, a seven hour limit and flexible start window; finishers receive a donut medal and a no-medal entry option is available.

A last person standing backyard ultra at Gosfield School in Essex where runners repeat a 4.167 mile loop each hour until one remains. Onsite camping, showers and a small aid station are available for participants.

A Backyard Ultra at Frylands Wood Scout Outdoor Centre on 29th August 2026 where runners complete **four miles** every hour until one remains. The event is listed as sold out.

A mud and obstacle event near Dorking, Surrey with a permanent assault course and a variety of natural and man made obstacles. Race options include 5K and 10K and the event accepts solo runners, teams and charity groups.

30 August 2026 in Alexandra Gardens Windsor offers 10K and half marathon routes with views of Windsor Castle. The event includes chip timing, free race photos and an event village.