Trail Running calendar near Sunbury-on-Thames 2025-2026

Join a guided 10 km evening trail run around Silent Pool and the North Downs for a social, scenic group outing. Runs take place at dusk or by headtorch in darker months, at a relaxed guided pace with kit support and a post run refreshment.

Scenic reservoir views and rolling wooded trails await at Bewl Water Autumn near Lamberhurst, Kent. Choose 10 km, half marathon, marathon or 50 km ultra on well marked routes loved by runners and rated among the UK's top courses.

Take on the Thames Path Ultra Challenge, a supported multi distance festival along the scenic Thames towpath from Putney to Henley with options from 10K to the full 100 km. Choose one or two day routes and enjoy riverside views, rest stops..

Challenge coastal ridges and rolling hills at the Isle of Wight Fell Race Series in Ventnor on 12 and 13 September 2026. Three scenic races from a short St Boniface dash to a 21 km Wroxall Round make this weekend a must for fell runners.

Run 10k, 21k or 42k through the Surrey Hills on 12 September 2026, starting at Shere Recreation Ground. Scenic, multi terrain routes with big views, chip timed results, on course support and a lively event village for finishers and fans.

Ventnor Horseshoe on Sat 12 Sep 2026 offers a scenic but testing 12 km fell course around Ventnor with 443 m of climb. Part of the Isle of Wight Fell Series, it is perfect for runners seeking a tough coastal hill challenge.

Start the IOW Fell Running Series with St Boniface Fell in Ventnor on Sat 12 Sep 2026, a punchy 3.9 km race with 235 m of climbing across scenic Isle of Wight terrain. Pre entry or on the day entries welcome.

Join the Farnham Pilgrim Half or Marathon on 13 September 2026 for scenic runs through the Surrey Hills on mainly off road trails. With frequent aid stations, free parking and strong marshal support, entries are limited so book early.

Choose 30k or 15k at Rye Ancient Trails and run through the High Weald AONB with woodland, orchards, lanes and coastal views. This hilly scenic challenge supports The Oliver Curd Trust and finishes with local hospitality.

Join the Alf Shrubb Memorial in Slinfold on 13 September 2026 for scenic trail 10k and 5k races plus kids events. Adult races are chip timed, finishers get a replica world record medal and proceeds support local village causes.

Enjoy a scenic single lap half marathon through Richmond Park on 13 September 2026, starting and finishing at Sheen Gate. Run 13.1 miles on park paths and the Tamsin Trail with leafy views and on course feed stations.

Tackle the Wroxall Round on 13 September 2026, a scenic 21.1 km fell run around Ventnor with about 487 m of ascent. Open to adults, with on the day entries and team places, this is race 3 of the Isle of Wight Fell Running Series.

Run riverside trails and village lanes at Roman River Trails, a self navigated half and full marathon near Colchester. Expect scenic river crossings, varied terrain, stocked aid stations and a cupless format so bring a cup.

Tackle 50 miles through the rolling Chiltern Hills in a single loop, with about 1700 m of climb across 80% trail. Fully marked and supported by five aid stations with a 13 hour time limit, this scenic ultra promises tough mileage and big vi..

Run the Cotswold Half Way is a 47 mile nonstop trail race along the Cotswold Way from Chipping Campden to Painswick, offering classic rolling countryside and a true ultra challenge. TRA licensed and run under UK Athletics rules, the event s..

The Lucky Horseshoe on 19 Sept 2026 invites runners to tackle 5k to ultra routes across the Gallops and Golding Hills near Bury St Edmunds. Enjoy friendly aid stations, included parking and a bespoke finisher medal.

Tackle the iconic Cotswold Way Century, a 102 mile single stage trail from Chipping Campden to Bath across rolling hills and varied terrain. You have 32 hours to earn a buckle while enjoying live tracking, aid stations and full GPX support.

Run the Triple Trail linking three scenic Kent routes with 25 km, 50 km or 100 km options, finishing at Loddington Farm. Enjoy a lively race village with food, camping, recovery services and evening entertainment.

Race the Bradenham Blast through beech woodland and the UK's only arable nature reserve in the Chiltern Hills, with testing climbs and flowing descents. Pick 5 km, 10 km or half marathon and receive an eco medal and a tree planted for you.

BigSky Trails on 20 Sept 2026 invites runners to airy high New Forest routes as the finale of the Classic Element series. Pick 18 miles, marathon or 50k ultramarathon across open plains and winding woods on fully marked, marshalled routes.