Trail Running calendar near Stevenage 2025-2026

The Reigate Priory Park 10K is a scenic charity fun run held in Priory Park, Reigate, Surrey. The course features a 250-meter start plus four laps on an accurately measured, gently undulating cross-country terrain surrounded by lush greenery. Suitable for runners of all levels, the event fosters a f..

Farmmageddon is an endurance running event held at Hyde Hall Farm, Buntingford, SG9 0RU. Returning for its second year, the event features a challenging 100-mile race completed over 32 hours across two days. The course consists of a 5.3 km loop combining trail, grassland, and some tarmac paths, suit..

The Grim Reaper Running Festival returns to Grimsthorpe Castle Estate near Bourne in South Lincolnshire. The event offers four solo ultra distances — 10, 40, 70 and 100 miles — plus a 100‑mile team option, and two 10‑mile races (day and night). Runners navigate a fully marked 10‑mile loop featuring..

London 2 Brighton Ultra Challenge is the original Ultra Challenge event, run by Ultra Challenge Series, from Richmond, West London to Brighton Racecourse along the Capital to Coast trails. It offers a full 100 km option at your own pace (about 1,500 m of ascent) plus ~50 km, 25 km, and a Brighton 25..

The Fox is a RunThrough Trails event set in the Surrey countryside, offering three trail distances: 20k, 41k and 62k. Runners start at different venues—Merrist Wood College in Worplesdon (20k), West Clandon Village Hall (41k), and Burys Field in Godalming (62k)—before all finish back at Burys Field...

Grand Union Canal Race (GUCR) is a 145-mile non-stop ultramarathon along the Grand Union Canal Towpath from Gas Street Basin, Birmingham to Little Venice, London. Dubbed “The Long Run” and regarded by many as Britain’s premier ultra, the race follows a way-marked, flat towpath through urban and rura..

The Ridgeway Challenge is an 86-mile (139 km) point-to-point trail race along The Ridgeway National Trail, from Ivinghoe Beacon in Hertfordshire to the Avebury Stones in Wiltshire. The route follows a historic path used for thousands of years, with a largely signposted course marked by permanent sig..

The Castle Trails 30km is a scenic point-to-point trail race in Kent, launching in 2026 as part of the Three Castles 50km Ultra weekend. Starting at Little Fant Farm near Maidstone and finishing in Tonbridge, the course follows the River Medway, passing historic sites like East Farleigh’s stone brid..

The Three Castles 50km Ultra Marathon is a scenic race held in Kent, England, starting in Rochester and finishing at Tonbridge athletics track. The flat course follows the River Medway, passing three medieval castles, charming villages, and lush countryside along the Medway Valley Walk. Runners expe..

The Beat the Sunset 50km is a multi-terrain ultramarathon held in the Thames Valley, starting and finishing at Summerleaze Park in Maidenhead, Berkshire. The flat, single-lap course covers 50 kilometers with 235 meters of elevation, featuring 75% off-road trails along the Thames Path, Jubilee River,..

The Circuit du Sore Legs is a unique running event held at Wodson Park Sports and Leisure Centre in Ware, Hertfordshire. Participants run on a traffic-free 400-meter athletics track, with distances ranging from 5k to a 6-hour challenge, including half marathon, full marathon, and 50k ultra options...

Surrey Hills Half Marathon is a guided trail half marathon based in Guildford, Surrey, covering about 13 miles. The route travels through the Surrey Hills, with highlights including St Martha's Church and hill, the village of Shere, and views from Newlands Corner and Hackhurst Downs, including secti..

The Sundowner Marathon is a unique running event held in Purleigh, Chelmsford, England, featuring a scenic course that passes along canals, over waterfalls, through vineyards, woodlands, and coastal saltmarshes. This marathon offers a distinctive experience by starting early on a summer evening and..

The Suffolk Back Yard Ultra is a highly competitive endurance 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 completes a loop within the hour time limit. The course is flat, wide, and scenic, f..

The Valley of the Owls Run, organized by Zig Zag Running, takes place at the Suffolk Running Centre in Bury St Edmunds, Suffolk. The scenic course passes through the village of Ousden, known as the Valley of the Owls, featuring some of England’s oldest roads and beautiful countryside. Participants c..

Dell 10km takes place in the Hampshire countryside at Dummer Down Farm, hosted by Dummer Down Brewery. The event features a 10km multi-terrain route (and a Canicross 10km) that weaves through private farmland, woodlands, fields and local lanes, finishing back at the brewery taproom. The course is ab..

Centurion Running’s South Downs Way 50km is a 50km non-stop trail ultramarathon through the South Downs National Park. The course starts at Matterley Bowl near Winchester and finishes in the Event Field at Queen Elizabeth Country Park, following the chalk ridgeway along the South Downs Way with expa..

Nestled in the heart of the Cotswolds, the Cotswold Way Ultra Challenge by Ultra Challenge takes runners and walkers on a looped 100km course from Cirencester basecamp, with optional 75km, 50km, 25km, and a Cirencester 10km option. The full route covers rolling Cotswold hills, villages, and the hist..

Friendly, scenic 10 and 20 mile trail races set in the Nene Valley countryside. Based at Castle Farm Campsite in Fotheringhay, near Peterborough (PE8 5HZ), the routes take in green fields, bluebell woodlands, rivers and disused railway tracks through quiet villages. Both distances are fully marked a..

South Downs Way 100 is a 100-mile non-stop ultramarathon along the South Downs Way National Trail in southern England. Beginning at Matterley Bowl near Winchester and finishing at Eastbourne’s athletics track, the route traverses chalk ridgeways with rolling hills, ancient forts, quaint villages, an..