Trail Running calendar near Swanmore 2025-2026

Take on the 50 Mile Grand Slam in 2026, a bold series of four Centurion Running 50 Mile races across iconic UK trails from the South Downs to Wendover Woods. Entries open April 26 2025 so register via SiEntries to secure your place.

The The Maverick East Sussex Trail will take place in Lewes on Saturday 11 April 2026.

Spring Run the Seasons at Cowdray Estate on 11 April 2026 offers scenic trails across the South Downs, with 5k, 10k and 10 mile races plus canicross. The 10k scores in the series and routes showcase heathland and big views.

Tackle 50 miles along the iconic South Downs Way on 11 April 2026, from Worthing to a dramatic lap finish at Eastbourne athletics track. Expect rolling chalk trails, big views and a seriously rewarding ultra for experienced runners.

The The Big Cheese will take place in Cheddar on Sunday 12 April 2026. You can run 15 miles.

Discover the Spring Trail Series on the Serpent Trail in the South Downs at Cowdray estate on 18 April 2026. Choose from 12 km to 110 km and enjoy a fully marked, supported route through greensand hills, rivers, woodland and heath.

The Chiltern Ridge Classic 50K is a scenic Ridgeway ultra through the Chiltern Hills, taking in iconic climbs, beech woodlands and wide views. Limited to 400 runners with a 9 hour cut off, it runs from Berkhamsted Castle to Wendover.

Windsor 50 Ultra Challenge The Windsor 50 Ultra Challenge takes place on Saturday 18 April 2026 from a basecamp at Windsor Racecourse. Routes use the Great Park, Runnymede and the Thames Path and return to the racecourse. The 50 km course i..

Martello Half Marathon : Seaford, East Sussex The event is a Half Marathon held in Seaford, East Sussex, with the next scheduled race on 19/04/2026. The route combines the Seaford seafront with sections on the South Downs and is described a..

Run the Thames Ring Series, a multi day trail loop based in Streatley on Thames that follows the river and canal towpaths on mostly flat, scenic terrain. Pick 100, 150 or 250 mile routes from 22 to 26 April 2026 for a true endurance fix.

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.

Explore the Mendip Hills on the Butcombe Trail Ultra, a self navigated trail ultra on 25 April 2026. Pick 50 mile or 50 km routes that link six pubs and raise funds for the Mendip Hills Fund.

The Drop - Winchester is a unique and challenging race held in Winchester, UK, offering participants a choice between 10-mile and 15-mile distances, either solo or in teams. Inspired by military-style navigation, the event requires runners..

The Ale Trail 15 mile run is a pub-led trail race in Alfriston, East Sussex, starting from the Ye Olde Smugglers Inne beer garden. The 15-mile course has a 4hr30min cut-off and pub checkpoints at The Hampden Arms and The Ram Inn, where runn..

Event overview The Chase Trail Run 2026 is part of the Garmin UK Trail Running Festival on 26th April 2026. The event takes place at St Giles House, Wimborne St Giles, BH21 5NA and is organised by ORA Events Limited. Entries close on 22nd A..

Run a flat, fast 5K or 10K along the River Adur and Downs Link at Adur Recreation Ground in Shoreham by Sea, passing the airfield and Toll Bridge. Chip timing and finishers medals add to this well supported riverside race.

The Portland Pig Backyard Ultra is an ultramarathon event held at Grove Farm Estate, Portland, Dorset. In this unique race format, participants run a 4.167-mile (6,706 meters) loop every hour, starting on the hour, continuing until only one..

Saturn’s Midweek Chasing Numbers 7-Hour Time Challenge is held at Wraysbury Skiff & Punting Club on the River Thames. The event is designed to be affordable and flexible, inviting all abilities to run or walk within a 7-hour window. Partici..

Event overview The Greensand Way Ultra Run is a guided, group trail run taking place on Saturday 2 May 2026 in Guildford, Surrey. The route covers 30 miles and the advertised cost is £45 per person. The event is presented as suitable for fi..

Run 100 miles along the scenic Thames Path from Richmond to central Oxford, finishing on the grounds of Oxford University. Mostly trail with a 30 hour limit and regular aid stations, plus pacers and a Centurion buckle for finishers.