Trail Running calendar near Letchworth Garden City 2025-2026

Thetford Back Yard Ultra is a competitive running event held at High Lodge in Thetford Forest, Suffolk. Participants run a 4.167-mile loop every hour on the hour, continuing until only one runner remains able to complete the loop within the one-hour time limit. This late summer event features chip t..

The Thames Path Ultra Challenge is a major endurance event along England’s iconic river, offering distances of 25 km, 50 km, 75 km, and a full 100 km route from Putney Bridge to Henley-on-Thames. Participants can walk, jog, or run at their own pace, with options for solo or team participation. The e..

The c2c Essex Ultra is a charity ultramarathon organized by c2c, offering participants the chance to run or walk either 30 or 50 miles along the scenic Essex Riviera. The event aims to raise funds for the children's cancer charity Gold Geese, supporting families affected by childhood cancer. The rou..

Bewl Water Autumn is a scenic bi-annual running event held near the Bewl Water Visitor Centre in Lamberhurst, Kent. The race features four distances: 10km, half marathon, marathon, and a 50km ultra. The courses follow trails around the reservoir, combining undulating rural wooded paths and quiet cou..

The Roman River Trails event offers participants the choice of a half marathon or marathon, featuring self-navigation routes through the picturesque Roman River valley near Colchester. The predominantly hard-packed trail includes sections of tarmac and grass, with several river crossings and some hi..

The The Sudbury Trail Run will take place in Sudbury on Sunday 14 September 2025.

The Bradley Fell Race, organized by BOFRA, is a challenging cross-country event held annually near Skipton, North Yorkshire. The race covers approximately 3.5 miles (5.6 km) with an elevation gain of 800 feet (274 meters), featuring a steady climb to High Bradley and a steep ascent to Bradley Moor...

The Sandridge 10k is a scenic trail running event set in the picturesque village of Sandridge, near St Albans. Participants can enjoy a beautiful 10k course that showcases the natural beauty of the area. The event is organized by Active Training World, and it promises a rewarding experience for both..

The Run London Epping Forest Trail 10k is a popular running event scheduled for September 14, 2025, in the scenic Epping Forest, Chingford. Participants will complete a 10k course consisting of two laps through the forest, known for its rich biodiversity and beautiful landscapes. The race is designe..

The Alf Shrubb Memorial 10k and 5k is a running event held in Slinfold, honoring local hero Alf Shrubb, a renowned runner born in the village. Scheduled for September 14, 2025, the event features a scenic route through the beautiful West Sussex countryside, with chip-timed races for adults and child..

The Dunstable Downs Challenge Half Marathon is a scenic race organized by Dunstable Road Runners, taking place on September 14, 2025, at Creasey Park, Dunstable. The route features a rural trail run across Dunstable Downs and surrounding countryside, mainly on public footpaths and bridleways, with s..

The NOTFAST Ponton Plod is a scenic running and walking event held at Great Ponton Village Centre near Grantham, Lincolnshire. Participants can choose from four distances: 10 km, 12 miles, 17 miles, or 26.4 miles, all to be completed within a generous 10-hour cutoff. The routes traverse picturesque..

The Ashtead 10k and 2k fun run, organized annually by Ashtead Running Group, takes place on rough, undulating tracks around Ashtead Common, a protected Site of Special Scientific Interest and National Nature Reserve. The course features historic landmarks including a Roman villa and a triangular ear..

The Lucky Horseshoe is a versatile running event hosted by Zig Zag Running at the Suffolk Running Centre in Bury St Edmunds. Offering distances from 5k to ultra marathon, participants can choose their preferred challenge on an out-and-back course featuring the Gallops Route and Golding Hills. The ro..

The Guided Half Marathon - Winchester will take place in Winchester on Saturday 20 September 2025. You can run 13 miles.

The Humanity Direct Tring Ultra is a one-day ultra marathon event set in the scenic Chilterns, designed for both novice and experienced runners. Participants can choose from three distances: a full 50km ultra, a 27km half ultra, or a new 10km option. The event not only offers a challenging running e..

The Triple Trail Races 2025, held at Loddington Farm in Kent, offer a premier trail-running experience featuring three race distances: a 100km full loop ultra marathon, a 50km half loop, and a 25km quarter loop. The courses traverse Kent’s iconic trails—the North Downs Way, Greensand Way, and Weald..

The Brutal @ Chawton will take place in Four Marks on Saturday 20 September 2025.

The Cotswold Way Century is a challenging trail running event covering approximately 102 miles from Chipping Campden to Bath along the scenic Cotswold Way National Trail. Participants have 32 hours to complete the course, which features a variety of terrains, including hilly paths, stone tracks, and..

The Cotswold Half Way is a challenging trail running event covering approximately 47 miles along the scenic Cotswold Way National Trail, starting from Chipping Campden and ending in Painswick. Participants will navigate a hilly terrain featuring beautiful viewpoints and picturesque villages. The eve..