Trail Running calendar near Peacehaven 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.

Take on the South Downs Way 50, a 50 mile trail across iconic chalk ridges from Worthing to Eastbourne. Expect 5700 ft of climbing, sweeping coastal views and a memorable finish with a lap on the Eastbourne Sports Club track.

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 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 rolling hills and chalky trails of the South Downs at the Maverick East Sussex Trail Run in Stanmer Park, with routes from 5 km to 21 km and a climb past Ditchling Beacon. Scenic, timed and medal for finishers.

Join a guided trail marathon through the Chilterns and Ridgeway into Wendover Woods, tackling rolling hills and technical single track while qualified run leaders steer small ability groups. Midway refreshments and a wooden Run the Wild fin..

Tackle the Brighton Trail Marathon, a 42 km off road adventure from Stanmer Park across the South Downs to a Hove Lawns finish. Expect woodland and chalk tracks, a climb up Ditchling Beacon and spectacular coastal views.

Set off from Windsor Racecourse on looped 10 km, 25 km and 50 km routes that sweep through Windsor Great Park, past Windsor Castle and along the Thames Path. Fully signed and supported with rest stops, catering and app tracking for walkers..

Run the Chiltern Ridge Classic 51K with 996m of climb across Ashridge, Ivinghoe Beacon and The Ridgeway from Berkhamsted Castle to Wendover. A UTMB Index event limited to 400 runners with a fully marked course and aid stations.

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.

Tough but rewarding 10 km fell race around Chingford with 450 m of climbing, hosting the first ever Essex County Championships. Pre entry only and open to Essex eligible runners aged 16 and over, with teams welcome.

Run the Martello Half Marathon in Seaford along seafront and South Downs trails, a scenic but undulating course with marshal support. Enjoy great views, a bespoke medal and free photos while backing local charities.

Join the Grand National 10km Trail Run in Findon on 19 April 2026 for scenic South Downs trails and a fun family atmosphere. Choose from canicross, 10k, 5 mile or a kids run while supporting St John the Baptist Primary School.

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.

The Ale Trail is a fun 15 mile trail run around Alfriston, East Sussex, starting from the beer garden of Ye Olde Smugglers Inne. Staffed pub checkpoints serve drinks and snacks for a sociable, scenic outing.

Test your navigation skills at The Drop Winchester, a point to point challenge where you are driven blindfolded to a mystery drop and must find your own way back to HQ. Choose 10 or 15 mile routes and surrender devices for a true adventure.

Run through fragrant bluebell woods on the scenic Angmering Park Estate with 10 mile and 10 km options for trail lovers. Enjoy marshalled courses, bespoke medals and free race photos at this popular spring event.

Bolt Round the Holt at Alice Holt Forest on 26 April 2026 offers scenic undulating forest trail races from junior 1k to half marathon. The event raises funds for GUTS and features bespoke medals, prizes and a friendly community vibe.

Join NOT the London Marathon Run 2026 on Sunday 26 April in Walton on Thames for a flat, certified lap course along the riverside towpath. Choose marathon, half or a 7 hour timed challenge, enjoy flexible starts and a commemorative medal.

Run through woods carpeted in bluebells in the Chiltern Hills at the Bluebell 10km, a roughly 10 km guided spring trail on Sunday 26 April 2026. Grouped by ability with a Run Leader, it is ideal for runners who can manage 5 km non stop.