Trail Running calendar near Nantgarw 2025-2026

We have found 277 Trailruns within 80 miles of Nantgarw. See below where and when you can find the races.

Enjoy scenic off road runs or walks around Fleet Lagoon in Dorset, with 10k, half marathon, marathon, a new four person marathon relay and a canicross category. Trails are waymarked and the event raises funds for local charities.

Take on scenic park trails at Margam Country Park on 27 September 2026 with a choice of 5K or 10K laps suited to runners of all levels. Chip timing, water stations and a finisher medal ensure a rewarding and well supported race day.

Run through ancient woodland in the Forest of Dean at the Autumn Half Marathon starting and finishing at Speech House. This scenic 13 mile trail on well marked tracks supports local charities and awards a medal to every finisher.

Race on the Chase features marathon, half marathon and 10k routes across rolling chalk downland, woodland and ancient sites in Martin Down, finishing at Salisbury Racecourse. Every finisher gets a medal and the top three men and women win t..

October 2026

Take on Dartmoor's moorland on 2 to 3 October 2026 with a 100 mile Full Circle or a 51 mile Granite race. Rugged trails, night sections and staffed checkpoints with hot food guide you to a finish in Okehampton.

UTMB Index

Run the Dartmoor Way in October 2026 with two linked supported ultras: Full Circle 100 around the moor and Granite 50 on the eastern leg. Tough moorland, scenic trails and staffed checkpoints make it a fully supported adventure.

UTMB Index

Take on the Salt Settlers Six Hour Race in Budleigh Salterton, completing as many scenic 4.4 km loops as you can around the Lower Otter valley. Open to runners and walkers with solo or pairs entries and on site aid, cafe and showers.

Run the scenic East Devon 8 Trigs with half, marathon or 53 km ultra options across coastal cliffs and Woodbury Common, navigating to trigpoints along the way. Event base at Budleigh Salterton Cricket Club offers parking, a cafe, bar and ho..

Wild Run Cotswolds showcases rugged off road trails on a private estate with fully marked routes, chip timing and a family friendly supporter zone. Entries are limited to 600; choose 10K, half, marathon or the six hour 360 challenge.

Sibelco Templer Ten on 4 Oct 2026 at Stover School is a scenic 10 mile multi terrain run about 90 percent off road through Stover Country Park. Entries are capped at 325 and often sell out, with medals for all finishers.

Run a scenic and rugged half marathon through the Quantock Hills, featuring rolling climbs, forest trails and open moorland. Enjoy on course support, a finishers medal and a festival vibe with camping, pizza and nearby pubs.

Run a scenic 50 km through the Cambrian Mountains near Lake Vrynwy on fully marked trails with a generous 14 hour cut off. Limited to 100, the Loop Ultra at Camp Plas mixes camping, live music and strong support with handcrafted trophies.

Tackle 55 km through the Forest of Dean, from ridges and dense woodland to the River Wye and Symonds Yat viewpoint. Technical single track and riverside sections offer scenic challenge and there is a canicross category.

Take on the scenic Twin Peaks & Ras Consti in Aberystwyth, with a testing 11.7 kilometre senior route over Pen Dinas and Constitution Hill. Starts and finishes on the promenade with great views, cafes and family friendly junior races.

Blaze the Biblins on 18 October 2026 is a scenic 10k trail race through ancient woods and riverbanks near Ross on Wye. Expect technical single track, climbs including the notorious Demon hill, and a lively village finish.

Roughly 12K trail run on bridle paths and the Imber Range near the Westbury White Horse on 18 October 2026. Limited to 200 places so book early for a bespoke finisher medal and category prizes.

Run muddy, multi terrain trails across rolling Stockland countryside with river crossings and hills, choosing 3 km, 5 km or 10 km distances. Village hall hub offers parking, cake and limited on the day entries.

Town and Country Harriers is a friendly Bristol based off road club that meets most Thursdays, usually starting and finishing at a local pub. Trails range from city paths to the Mendips and Cotswolds and all who can run 4 to 5 miles are wel..

Halloween 7in7 at Pengethley Manor, Ross on Wye offers seven consecutive days of off road laps through vineyards and a hill, with distances from 5k to ultra. Walk or run any day or go virtual and collect seven themed medals.

Join the Witches Whisk at Pengethley Manor for a spooky Halloween trail across 2.5 km laps through vineyards and rolling offroad terrain. Pick 5k to ultra distances, ideal for runners or walkers after a fun seasonal challenge.