Trail Running calendar near Grafham Water 2025-2026

The Ridley Round is a self-navigation trail race held in Chelmsford, Essex, starting and finishing at The Compasses Inn in Littley Green. Approximately half marathon distance, the event takes runners through scenic rural countryside, including the Essex Way and the Chelmer Valley, while visiting sev..

The Maverick X Series Cotswolds 2025 is a trail running event held on July 12, 2025, at the historic Sudeley Castle in the Cotswold Hills, Gloucestershire. Celebrating its 10th year, the race offers four challenging routes ranging from 15 km to an ultra 51 km, all featuring rolling terrain, steep hi..

Race to the Stones is the UK's largest ultramarathon, held along the ancient Ridgeway trail from Lewknor to the 5,000-year-old Avebury Standing Stones, a UNESCO World Heritage site. Covering 100 kilometers with 1,340 meters of elevation, the event offers a non-stop challenge or a two-day option with..

The North Downs 50 Ultra Challenge is a premier endurance event held in the Surrey Hills, starting and finishing at the Guildford basecamp. Participants can walk, jog, or run on looped routes of 50km, 25km, or 10km, featuring scenic trails along the North Downs Way with stunning southern views. The..

Ultra:5K is a unique running event held at Box End Park, Kempston, near Bedford, Great Britain. The challenge involves running multiple 5K races on the hour, every hour, with two options: five 5K races over five hours (25 km total) or three 5K races over three hours (15 km total). The event emphasiz..

The Thackray Williams Sevenoaks 7 is a celebrated 7-mile trail race held annually in the scenic Knole Park, Sevenoaks, Kent. Marking its 30th edition in 2025, the course features challenging hills, multi-terrain paths, and picturesque woodland trails, offering an exhilarating experience for runners..

The Phoenix Striders Summer Series is a trail running event held at the Essex Wildlife Trust's Langdon Discovery Nature Park, part of Langdon Hills. The series features five rounds, with Round 4 taking place on July 15, 2025. The event offers a 5k trail run consisting of two laps of a 2.5k circuit,..

The Surrey Hills 10km is a guided trail run set in the picturesque Surrey Hills Area of Natural Beauty near Guildford, UK. The 10km route starts with a climb up St Martha's Hill, offering panoramic views from the hilltop church, then continues to Newlands Corner with stunning vistas over Surrey’s ro..

The Chelmsford Brew Co Summer 10k Trail Run is a fun, non-competitive running event held in Chelmsford, Essex, starting and finishing at the Voodoo Keller Bar. The 10k trail route includes a checkpoint at the Chelmsford Brew Co tap room where runners can pause for a drink and relax before continuing..

The Bell & Harp Chase is an inaugural 7.5km mixed-terrain running event held in the scenic Derbyshire Dales, starting and finishing at the Bell & Harp pub in Little Eaton, UK. Designed for intermediate runners with good fitness, the course features mostly paved or hardpacked surfaces suitable for va..

The Hughenden Valley 10K is a popular trail running event held around the National Trust's Hughenden Manor estate near High Wycombe. The 10-kilometer course features a hilly terrain with over 195 meters of elevation gain, winding through beautiful woodland and rural trails in Hughenden Valley. The r..

The FREE Backyard Ultra Taster Session is a casual, guided group run held at Vigo Rugby Club in Meopham, UK. Participants can experience the Backyard Ultra format by running one or both of the official Day Yard and Night Yard loops, each 4.1 miles long, used in the Kent Backyard Ultra Series. Runner..

The Hughenden Valley Half Marathon is a scenic trail running event held at the National Trust's Hughenden Manor and surrounding woodlands in the UK. Covering 21.1 km with over 450 meters of elevation, the course features woodland trails and challenging hills, offering a mix of ups and downs without..

The Maverick X Series Chilterns 2025 is a trail running event held at the historic Stonor Park estate near Henley-on-Thames, Oxfordshire. Set within the Chilterns Area of Outstanding Natural Beauty, the race offers four challenging routes ranging from 12 km to an ultra 52 km, featuring significant e..

The Humanity Direct Chiltern Challenge is a one-day ultra running event held in the scenic Chiltern Hills, starting and finishing at Princes Risborough School in the South East of England. Participants can choose from three distances: 10km, 25km, or 50km, with ascent gains ranging from 258 to 871 me..

The Boudicca Way 50km Ultramarathon is a beginner-friendly trail running event held in Norfolk, England, from Diss to Norwich along the scenic Boudicca Way Long Distance Path. The route parallels the old Roman Road (A140) and passes through charming villages including Pulham Market, Fritton, Saxling..

Conquer Cannock is a running event held at Cannock Chase, featuring multiple race distances including 5k, 10k, 16k, and a mini-miler for children aged 3 and above. The course offers a challenging mix of terrain with hills, loose surfaces, and exposed tree roots, set amidst the scenic forest trails...

The ATW St Albans Summer 10K is a flat, fast, and chip-timed race held at Highfield Park, St Albans, Hertfordshire. The single-lap course follows the scenic, traffic-free Alban Way, a tree-lined disused railway path, looping through Sleapshyde before returning to the park. The route is mostly on tar..

Bright Skies Surrey Hills is a daytime trail running event held at Denbies Wine Estate in Dorking, UK. It offers marathon, half marathon, and 10K distances, including canicross races, plus 1K and 2K kids’ races for ages 3-12. The course features an undulating route through Surrey’s rolling, muddy hi..

The Surrey Slog, also known as the Holmbury Hill Challenge, is a challenging trail running event held in the scenic Surrey Hills near Peaslake. The race features a hilly, undulating multi-loop cross-country course primarily on tracks around Holmbury Hill, with well-marked routes and marshalled key p..