Trail Running calendar near Slindon 2025-2026

Run through scenic Hurn Forest on a well maintained out and back course with lap length 5.3 km and distances from 5K to ultramarathon. All finishers of one lap or more get a medal and 20% of fees support Forestry England.

Take on the Ashridge Boundary Run on 28 March 2026 in Aldbury, a scenic 17.5 mile trail around the Ashridge Estate starting and finishing at Aldbury Recreation Ground. National Trust backed, with water stations, a finisher gift and prizes.

Run the South Downs from historic Arundel with scenic single loop 50k and half marathon options, starting and finishing at Arundel Football Club. Trails through woodlands, castle views and rolling hills make this a memorable spring trail ch..

Challenge yourself over 16 miles of undulating cross country through Berkshire and Hampshire, with hills, trails and mud. Race includes coach transfer to the start, kit transport to the finish and professionally managed road crossings in Ov..

Take on a scenic 10K through Epping Forest on 29 March 2026, two laps on traffic free forest tracks with an undulating, multi terrain route. Limited to 600 entries and finishers receive a medal.

Take on the Gauntlet Treasure Run along a flat riverside towpath in Walton on Thames, doing laps of a 5.3 km out and back to build any distance from 5k to ultra within seven hours. Limited places and every finisher gets a medal.

Choose your distance on the day and tackle scenic looped courses through woods and trails around Chalfont St Peter, with pacers welcome and a trained medic on standby. Distances from 7k to ultra are offered and top three finishers earn meda..

Run or walk riverside laps along the Thames at the Eggcellent Easter Orange Run in Runnymede, a flexible multi distance event for all abilities. Choose anything from 3 km to a 7 hour time challenge and earn an Easter egg themed medal.

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..

Run the Testway Ultra on 4 April 2026 and choose a scenic 40 or 50 mile route along Hampshire's Testway with regular aid stations and a 14 hour cutoff. Medals and prizes await finishers.

Take on the Unbreakable Treasure Run on 5 April 2026 at Xcel SPORTS HUB, Walton on Thames, running timed laps along a flat riverside towpath from 5 km to ultra. Limited places and a 7 hour time cap make this a focused challenge with a keeps..

Take on the Mortimer 10km through scenic Berkshire woodlands on Monday 6 April 2026. This undulating two lap off road course features chip timing, medals and a dog friendly canicross start for runners with dogs.

Take on West Wight 3 Hills, an undulating 8 mile coastal loop from Freshwater that climbs Tennyson Down and Alum Bay. Organised by Ryde Harriers, it is scenic, testing and gives every finisher a souvenir.

Take on the 50 Mile Grand Slam, a series of four Centurion Running 50 mile events across 2026. Tackle iconic routes from the South Downs to Wendover Woods and earn a special series finish for completing them all.

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.

Spring Run the Seasons Cowdray on April 11 offers scenic trail races across Cowdray Estate and the South Downs, with distances for kids, juniors and adults plus dog friendly CaniRun options. Enjoy varied trails and country views for all abi..

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.