Trail Running calendar near Princes Risborough 2025-2026

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 on Monday 6 April 2026 at Mortimer Fairground, a scenic off road route through local woodlands and bridleways. A dog friendly canicross 10 km option lets you enjoy the race with your canine companion.

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.

Run the Rose of the Shires, a scenic 54 miles loop from Brixworth Country Park through Salcey Forest, canal towpaths and 21 villages. Mostly off road and a UTMB index 100K, the route offers navigation challenges and relay team entries.

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.

Tackle the scenic South Downs Way 50, a 50 mile trail from Worthing to Eastbourne finishing with a lap on the track. Enjoy rolling chalk ridges and big views as this first race in the 2026 50 Mile Grand Slam.

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.

Tackle the Rosebud Marathon, a scenic 26.2 mile section of the Rose of the Shires Ultra around Northampton. Expect mixed trail and road terrain, live GPS tracking, manned checkpoints and a finisher medal.

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..

Flat, traffic free out and back ultramarathon on the scenic Brampton Valley Way with 14 mile one way or 28 mile round trip options. Bring a head torch for the tunnels and your own cup as the race is cupless.

Scenic 10k trail through rolling Northamptonshire countryside on 12 April 2026, starting and finishing at KC Active in Kings Cliffe. Fully marked and marshalled, the route includes a stocked aid station and eco friendly water refills.

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.

Take on the Wild Horse 200 series and run 200 miles across unforgettable Welsh trails and mountains. Pick the South Wales route finishing at Worms Head in April 2026 or the Mid Wales loop starting and ending in Machynlleth in June 2026.

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.

Join a guided 18 mile trail run along the Malvern Hills ridge, summiting the peaks and tackling 1300 m of ascent with a qualified coach. Not a race; expect steady trail pace, stunning views and friendly company.

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.