Trail Running Calendar South East (England) 2025-2026

Event Fortitude Ultra - Pippingford is a timed ultra event at Pippingford Park, Uckfield, TN22 3HW. The next race is on 28/03/2026. The event format is described as "10 Hrs : 10 Laps : You-vs-You." Participants aim to complete ten..

The Springtide 50k is an ultra running event held in the historic town of Arundel, West Sussex. This single-loop course offers a runnable, non-technical route through the scenic South Downs, making it ideal for beginners and experienced run..

Saturn's 7 Hour Time Challenge at Wraysbury Skiff & Punting Club (Wraysbury, TW20) is an inclusive, self-paced race along the River Thames. Entrants choose a distance from a 3 km lap, with full laps around about 7 km (4.37 miles) or a short..

The Testway Ultra is a challenging ultra marathon held in Hampshire, England, featuring 40 and 50-mile distances along the scenic Testway footpath. The route stretches from the chalky downs near the Northern Hampshire/Berkshire border to th..

Challenge yourself on an 8 mile undulating trail around Freshwater, climbing about 900 feet and passing iconic spots like Tennyson Down and Alum Bay. Limited to 175 entries on 6 April 2026, this rugged multi terrain route offers stunning co..

Join the Mortimer 10 km on Monday 6 April 2026 for a scenic two lap off road route through local woodlands, with a dog friendly canicross option. Enjoy chip timing, medals and a lively event village while supporting Ollie Young Foundation.

Take on the iconic South Downs Way in this 50 mile trail challenge across chalk ridges and coastal scenery. Start in Worthing and finish with a lap at Eastbourne track on 11 April 2026 for a true test of endurance.

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

Run the Henley River Half Marathon, 10K or Junior Race at Temple Island Meadows and enjoy scenic, mixed terrain trails along the River Thames. Expect themed medals, free photos and a lively event village with food, drink and family fun.

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.

Join Centurion Running's 50 Mile Grand Slam, four 50 mile trail races across iconic English routes from spring to autumn. Experience epic endurance, camaraderie and unforgettable scenery.

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 Windsor 50 Ultra Challenge invites participants on scenic loops through Windsor Great Park, along the Thames and past Windsor Castle. Choose 10 km, 25 km or 50 km courses with app tracking, support stops and a lively finish celebration.

The Chiltern Ridge Classic 50K is a scenic trail ultra on 18 April 2026, from Berkhamsted Castle to Hampden Meadow in Wendover. Follow the Ridgeway past Ivinghoe Beacon and Ashridge for an off road challenge with on course support.

Take in Seaford seafront and rolling South Downs on the Martello Half Marathon, an undulating trail course that blends coastal views with countryside. Enjoy water stations, a bespoke medal and free event photos as you race.

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.

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..

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 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..

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..