Trail Running calendar near Grafham Water 2025-2026

The Dukeries 30 / 40 is an annual trail running event held in Nottinghamshire, starting and finishing at Walesby Sports & Social Club near Sherwood Forest. It offers two distances: 30.8 and 40.8 miles, both following a clockwise circular route mainly on forest trails, footpaths, and minor roads. The..

The Run Rabbit Trail Festival is a multi-distance trail running event held at the scenic Deene Park Estate near Corby. Organized by Race Harborough, it offers a weekend of challenges designed for runners of all abilities. Participants can choose from three main events: the Trail Mix Challenge (25k),..

The Chiltern Hills 100K is a 100-kilometer ultra marathon held in the Chiltern Hills, Buckinghamshire, UK. The race features an anticlockwise loop starting and finishing in Chesham, passing iconic landmarks such as Ashridge Estate, Coombe Hill, Whiteleaf Hill, Bledlow Ridge, and Great Hampden. With..

Shires and Spires is a celebrated multi-terrain running event held in Northamptonshire, starting and finishing at historic Naseby Village Hall. Known for its scenic routes through the English countryside, the race offers five distances: 10K, half marathon, three-quarter marathon, marathon, and a 35-..

The Zig Zag Marathon and Half Marathon take place at the Suffolk Running Centre in Bury St Edmunds, UK. The marathon follows the officially measured, scenic Kirtling Route, which is fully on road and mildly undulating, while the half marathon uses the Windmill Route, both featuring quiet roads. The..

The Halstead & Essex Marathon, held annually since 1995, is a scenic marathon event located in North Essex, starting at Halstead Leisure Centre. The course features low-traffic roads winding through picturesque rolling hills, woods, and farmlands, offering runners a beautiful and tranquil setting. O..

The Five Rivers Ultra is a scenic ultra-endurance running event held along the wild North Essex and South Suffolk coastline, finishing in Harwich, Suffolk. It offers three distance options: 100 miles, 50 miles, and 50 km, all featuring generous cut-off times. The point-to-point course is predominant..

The Trent Valley Ultra is a scenic 50-kilometer ultra marathon held in Nottinghamshire, starting and finishing at Milestone Brewery & Tap in Cromwell, Newark. The course winds through charming villages using footpaths, bridleways, tracks, and minor roads, showcasing the natural beauty of the region...

The Centurion North Downs Way 50® is a challenging 50-mile point-to-point ultramarathon held annually along the North Downs Way National Trail in England. Starting in Farnham, Surrey, and finishing at Knockholt Pound near Greater London, the course features approximately 5,600 feet of elevation gain..

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..

The Grim Reaper Ultra Marathon is a multi-distance running event held at the scenic Grimsthorpe Castle Estate in South Lincolnshire, UK. Scheduled for May 23-24, 2026, it offers solo race options of 10, 40, 70, and 100 miles, plus a 100-mile team relay. The course features a fully marked 10-mile loo..

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 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 ultramarathon takes place in Maidenhead, Berkshire, starting and finishing at the NMCC Sports Club. This multi-terrain course is fully marked and features four checkpoints approximately every 10km, with a personal nutrition drop available in the latter half. The event offers..

The Ridgeway Challenge is an 86-mile (139 km) point-to-point trail running race along the entire length of The Ridgeway National Trail in England. Starting at Ivinghoe Beacon in Hertfordshire and finishing at the Avebury Stones in Wiltshire, the course follows a historic path that has existed for ov..

The Circuit du Sore Legs is an annual running event held at Wodson Park Sports and Leisure Centre in Ware, Hertfordshire. Now in its sixth year, it offers a unique challenge of completing various distances on a 400-meter athletics track, including 5k, 10k, half marathon, full marathon, 50k ultra, an..

The Gerald Story Memorial Fun Run is an annual 5.5-mile trail running event held at Worksop College, starting in Worksop and winding through the scenic Clumber Park. The mostly trail course includes a short closed road section and offers beautiful natural surroundings. The event honors Gerald Story,..

The Sundowner Marathon is a unique running event held in Purleigh, Chelmsford, England. The course offers a scenic route that takes participants along canals, over waterfalls, through vineyards, woodland, and coastal saltmarshes. This marathon stands out by starting early on a summer evening and con..

The Valley of the Owls Run is a multi-distance running event held 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. Runners can choose..

The Nene Valley Trail Run is a friendly and scenic off-road running event held at Castle Farm Campsite in Fotheringhay, near Peterborough. Scheduled for June 13, 2026, it offers two race distances: 10 and 20 miles. The courses traverse picturesque Northamptonshire countryside, including green fields..