Trail Running calendar near Haywards Heath 2025-2026

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.

Enjoy a scenic 5 mile loop around Hall Barn Estate with a tarmac start and finish at Beaconsfield Rugby Club. Organised by Burnham Joggers on 6 April 2026, this friendly trail run features marshals, chip timing and post race prizes.

Take on the 50 Mile Grand Slam 2026 from Centurion Running and complete four epic 50 mile trail races across the UK. A true year long challenge for experienced runners seeking big miles, camaraderie and stunning scenery.

Run the South Downs Way 50 miles (81 km) on 11 April 2026, a scenic but demanding trail with about 5,700 ft of ascent. Start in Worthing and finish on Eastbourne athletics track for a memorable coastal to downland challenge.

Take on the Henley River Half Marathon, 10K or Junior Race in Henley on Thames on 11 April 2026, with options for all ages including a kids race. Enjoy mixed terrain, riverside views, medals, free photos and a buzzing event village.

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 scenic chalky trails around the South Downs and Ditchling Beacon at the Maverick East Sussex Trail in Stanmer Park. Choose from 21 km, 13 km or 5 km routes with rolling hills, great views and a lively community atmosphere.

Run a guided Chilterns Trail Marathon along the Ridgeway and through Wendover Woods, featuring rolling hills and expert leaders offering pacing and technique tips. Small field, halfway refreshments and a wooden finisher medal make for a sce..

Take on the 42 km Brighton Trail Marathon through the South Downs from Stanmer Park to Hove Lawns on 12 April 2026. Hilly chalk ridgelines, woodland and a finish on the Brighton Marathon route promise a scenic, rewarding challenge.

Run scenic loops around Windsor Great Park and the Thames Path with views of Windsor Castle at the Windsor 50 Ultra Challenge. Options include 10 km and 25 km plus the 50 km figure of eight with support, rest stops and a finisher medal.

Take on the Chiltern Ridge Classic 50K, a 51K trail ultra across the iconic Chiltern Hills with 996 m of climbing, starting at Berkhamsted Castle and finishing in Wendover. Expect Ridgeway views, tough trails and full on course support.

Run the Spring Trail Series at Cowdray Estate where the Serpent Trail winds through greensand hills, rivers and woodland. Distances from 12 km to 110 km, with food, camping and relaxed cutoffs 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 10 km trail in Findon on 19 April 2026 across the South Downs during Grand National weekend. Family friendly races include canicross, 5 miles and kids runs with bespoke medals, costumes and proceeds to local causes.

The Thames Ring Series is a multi distance trail event from Streatley on Thames, featuring the roughly 250 mile Thames Ring 250 counterclockwise loop along canals and towpaths. Scenic and largely flat, it takes place 22 to 26 April 2026.

Join the Ale Trail, a 15 mile sponsored fun run through scenic countryside around Alfriston on 26 April 2026, with just 50 places for a sociable challenge. Start and finish at Ye Olde Smugglers Inne with checkpoints offering beer tokens and..