Trail Running calendar near Semington 2025-2026

We have found 439 Trailruns within 80 miles of Semington. See below where and when you can find the races.

Enjoy scenic trail laps around Wimbleball Lake on off road routes with water views and a friendly festival atmosphere. Choose 5K or 10K courses with run and canicross options, finisher medals and pro timing.

Take on the Black Cattle Ultra on Saturday 29 August 2026, a scenic trail running from the Black Mountains into Cardiff, finishing near Castell Coch. Choose between 71K or 53K routes through mountains, wooded vales and villages.

Tackle a scenic trail 10K or half marathon through Alexandra Gardens with distant views of Windsor Castle. Chip timed results, free race photos and a lively event village make this a great day out for runners and supporters.

Join the Plum 10k on 30 August 2026 in Pershore, Worcestershire, hosted by Pershore Plum Plodders. Enjoy a scenic 10 km through local countryside with friendly club support and a welcoming atmosphere for runners of all abilities.

September 2026

Run along the Thames at the Henley River Half Marathon, 10K and Junior Race starting and finishing at Temple Island Meadows. Enjoy a scenic mixed terrain course, themed medal, free photos and an event village with food and charity options.

Join a guided 30 mile trail run around the Isle of Purbeck, tackling very hilly coastal paths and 1400 m of ascent through iconic spots like Corfe Castle and Old Harry Rocks. This non competitive group run is scenic, challenging and social.

Run a scenic 30 mile ultra around the Rhymney Valley Ridgeway in South East Wales, with ridge top views, trails and woodland. Staffed checkpoints, no time limits and post race care make this a welcoming challenge.

Choose a half marathon or full marathon along a flat, scenic riverside towpath from Walton on Thames to Hampton Court and back, run in laps for easy pacing. Limited places and medals for all finishers plus a giveaway for every entrant.

Join the Ross on Wye Riverbank Run on 6 September 2026 for scenic multi terrain 5k, 10k and a family fun 500m along the River Wye. Flat, fast course, chip timing and medals for all finishers make it perfect for racers and families alike.

Join the Carnival Chase at Warminster Town Park by the boating lake for scenic country lane and trail races. Choose a 10K, 3K or 1.2K family, wheelchair and buggy fun run, with medals for all and prizes across categories.

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.

Take on three scenic fell races in Ventnor on Saturday 12 and Sunday 13 September 2026, with the series doubling as the SEAA Fell Running Championships. Entries open 22 October 2025 for single races or the full series.

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.

Run the scenic, hilly Farnham Pilgrim Half Marathon on 13 September 2026 in the Surrey Hills, starting at The Sands Recreation Ground. Enjoy off road, multi surface trails, plentiful aid stations, marshals and sweeping views.

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.

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.

Tackle The Relentless in Bridgend, a tough looped ultra on 18 September 2026 offering 50 miles (5 loops) or 100 miles (10 loops) with big support, crew zones and drop bag access each lap. Limited to 25 runners per distance so book early.

Run a single loop 50 mile through the scenic Chiltern Hills with about 1700 m of climb and riverside views. Fully marked route with staffed aid stations and medical cover makes this a rewarding, serious ultramarathon.

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