Trail Running calendar near Avebury 2025-2026

Take on a year of ultra adventure with the 50 Mile Grand Slam 2026, covering all four Centurion Running 50 mile races. Sign ups run April 26 2025 to March 14 2026 so grab your place and chase iconic trails and camaraderie.

Tackle the scenic South Downs Way 50, a 50 mile trail from Worthing to Eastbourne finishing with a lap on the track. Enjoy rolling chalk ridges and big views as this first race in the 2026 50 Mile Grand Slam.

Run along the banks of the River Thames in Henley with half marathon, 10K and junior races, chip timing, unique medals and free race photos. Event village serves food and drinks and the event supports the Royal Berks Charity.

Run the Rosebud Marathon, a scenic 26.2 mile leg of the Rose of the Shires Ultra across Northamptonshire with roughly 60% trail and 40% road. Enjoy varied terrain, aid stations and live GPS tracking to Brixworth Country Park.

Pick 32.5, 18.5 or 10 mile coastal trail races finishing at Ogmore by Sea Village Hall. Run the Wales Coast Path past 19 beaches and miles of Glamorgan Heritage Coast cliffs, coves and rolling countryside for a memorable coastal challenge.

Run the spring trails at Cowdray Estate with 5 km, 10 km, 10 mile, junior races and canicross options. Scenic sandy heathland and mixed trail sections through wildlife rich commons deliver a rewarding, characterful day out.

Tackle The Big Cheese, a 15 mile off road fell race across the Mendip Hills with over 2,000 feet of climbing. Enjoy a fully marked course, finishers medal and tea and cake to celebrate at the finish.

Take on the Wild Horse 200 series and run 200 miles across unforgettable Welsh trails and mountains. Pick the South Wales route finishing at Worms Head in April 2026 or the Mid Wales loop starting and ending in Machynlleth in June 2026.

Inaugural MTC Afanc ultra on 18 April 2026 sends runners 39.7 miles along National Cycle Route 8 from Glasbury to Merthyr Tydfil. Expect rugged scenery, strict pacing and a hard earned Afanc medal at the finish.

Scenic loops from Windsor Racecourse through Windsor Great Park and along the Thames past Windsor Castle, offered as 50 km, 25 km and 10 km races. Well supported with aid stations and a festival finish with medal and T shirt.

The Chiltern Ridge Classic 50k will take place in Wendover on Saturday 18 April 2026. You can run 51 kilometers.

Tackle a guided 18 mile trail run along the Malvern Hills ridge, with over 1300 m of climbing and spectacular views. This group run by Running Adventures suits fit runners comfortable at steady 10 minute mile pace and includes kit guidance.

Challenge yourself on the Beast of the Beacons, a trail ultra across the Brecon Beacons from Gilestone Farm on Saturday 18 April 2026 with 10, 20 and 40 mile options. Expect steep climbs, reservoir and ridge views, wildlife sightings and fu..

Run the Spring Trail Series at Cowdray Estate in Surrey, following the scenic Serpent Trail through greensand hills and woodland. Choose from 12km to 110km, with relaxed cut offs, campsite and on site expo for a friendly well supported day.

Discover the Black Mountains and World Heritage landscapes around Blaenavon on this LDWA long distance walk and run. Pick 20, 30 or 50 mile routes that tackle classic climbs, quiet valleys and canal side finishes.

Take on the inaugural MTC Y Draig Goch on 19 April 2026, a scenic 35 mile stage from Merthyr Tydfil to Barry Island along National Cycle Route 8. Limited to 40 entrants, all finishers earn a Y Draig Goch medal and top athletes win bespoke t..

Martley Madness is a scenic 10 miles trail race across Rodge Hill and woodland, with challenging climbs and quiet country lanes. Finishers get bespoke medals and proceeds benefit Cardiac Risk in the Young.

Join the Grand National trail run in Findon Village with a 10 km main race, new 5 mile course, a 10 km canicross and a 2 km kids loop at Nepcote Green. This charity event features bespoke medals, free photos and a best dressed jockey prize.

Run the scenic Thames Ring, a multi distance trail loop from Streatley on Thames that follows the river and canals. Choose 100, 150 or 250 mile challenges on riverside paths with GPS tracking and checkpoint support, 22 to 26 April 2026.

Enjoy a scenic run or walk from Bath's southeast edge into Cotswold woods, hills and river valleys, choosing from four distances up to 26.5 miles. Finishers get a medal, food and drinks and recovery transport if needed.