Trail Running calendar near Grafham Water 2025-2026

Chiltern 50 Ultra Challenge is part of Ultra Challenge’s UK trek and trail series, based at Henley Showground. It offers a 50 km loop (920 m ascent) and a 25 km option, plus a 10 km Chilterns route. The end-of-season course winds through the Chilterns’ historic trails, rolling hills, nature reserves..

Runaway Challenge is a 6-hour timed running event by Circuit Running at Skellingthorpe Community Centre, Lincoln. Runners tackle distances from 5k to an ultra by completing laps of a 4.37-mile course along an old railway line on a tarmac path. A 5k turn point exists; 10k is two laps, half marathon t..

Thunder Races offers trail running events in Bedfordshire, UK, centered on Harrold-Odell Country Park. The events feature multiple distances, including a 25km and a 50km trail race, designed for both experienced ultrarunners and newcomers. Runners traverse runnable woodland and countryside around Ha..

North Downs Way Ultra Run is a 30-mile trail event starting and finishing at St Martha’s Hill, Guildford, Surrey. The route follows the North Downs Way westbound, showcasing the Surrey Hills with highlights such as Box Hill and a pass through Denbies Wine Estate before finishing at Newland’s Corner..

The Stuart Learmouth Undulator Fell Race, organized by Wirksworth Running Club, is a classic 13.7 km (8.5 miles) fell race in the Peak District featuring 457 meters (1500 feet) of ascent. Starting at Stoney Wood near the Lime Kiln pub in Wirksworth, the challenging course combines steep climbs, rock..

Wild Run Cotswolds is staged at Cornbury Park, Charlbury, Oxfordshire, within the Wychwood forests. The event offers a 10K loop with options for a half marathon, marathon (four loops), or a 360° challenge (six hours to complete as many 10K loops). The course uses private estate trails, mixing smooth..

Run Sandringham is a multi-distance running event staged on and around the Sandringham Estate in West Norfolk. Runners can choose a Half Marathon, 10K, 5K, Community Mile, or the 24-Hour challenge around the Royal Estate. The course runs on a mix of trails and closed roads, starting and finishing wi..

The Grantchester Charity Runs, held near Grantchester village outside Cambridge, feature 10k and 3k races through scenic, predominantly flat farmland with no road crossings, ensuring a safe and pleasant course. The volunteer-run event supports Maggie’s Centre Cambridge and Addenbrooke’s Charitable T..

The ZigZag Wensum Way Trail is a scenic trail running event held near Billingford Lakes, Norfolk (postcode NR20 4RG). The course features a 5.3 km out-and-back route combining tarmac paths, grasslands, and rugged trails, offering variety for trail enthusiasts. Participants can choose between 4-hour..

The Rayne QTR event, organized by Mid Essex Casuals, offers a self-navigation trail run of either 6.56 miles or 3.6 miles. Taking place on September 28, 2025, from The Swan Pub in Rayne, Essex, the course is mainly off-road, featuring footpaths, tracks, and field edges with some short road sections...

Pumpkin Run Colchester takes place at Foxes Farm in Aldham, Colchester. The event offers multiple distances: a 10K, 5K, a family-friendly 1K, and a dog-friendly 5K. Runners loop across fields, past the pumpkin patch and through a corn maze, on traffic-free farm tracks that are mostly flat for fast t..

Bournville Leafy 10k is a 10-kilometre multi-terrain race held in Bournville, Birmingham, with the start and finish at Rowheath Pavilion on Heath Road. The course winds through parkland and leafy paths, featuring off-road sections on grass and uneven ground. The event fosters a friendly, community a..

Richmond Park Half Marathon is a trail-style half marathon held entirely within Richmond Park, London. The course starts and finishes at Sheen Gate (race HQ) and covers 13.1 miles, looping from the centre to Richmond Gate and along the Tamsin Trail, with climbs to Broomfield Hill for drinks and pass..

Kingfisher Challenge is a Big Bear Events trail run held at Coombe Abbey Park, on the outskirts of Coventry. Participants choose how far to go within a six-hour limit, completing as many 3.3-mile laps as they wish. Distances range from just over 5k to well over 50 miles, with benchmarks for a marath..

The event takes place on 30 September 2025 at Coombe Abbey Park, Coventry (CV3 2AB). The park is on the outskirts of Coventry and is about 6 minutes from Junction 2 of the M6; the closest train station is Coventry. Parking on site costs up to £3 for 1-2 hours and there is a toilet block next to the..

The London Ecotrail 25 Km is an exciting running event that takes participants through the scenic landscapes of Epping Forest. This eco-friendly trail run emphasizes sustainability and encourages runners to enjoy the natural beauty of the area while promoting environmental awareness. The event is de..

The London Epping Forest 50 Km will take place in London on Saturday 4 October 2025. You can run 50 kilometers.

The Hoby Hop Trail Race is a 5-mile chip-timed cross-country and canicross event set in the Upper Wreake valley around Hoby, Leicestershire. The undulating course winds across fields, stiles, and brooks along traditional footpaths, with occasional hills and expansive views. Race HQ is at Hoby & Dist..

The Burnham on Crouch 10K is an exciting running event organized by the Rotary Club of Burnham-on-Crouch and Dengie Hundred, scheduled for October 5, 2025. Participants will enjoy a scenic, flat, single-lap course that features coastal paths along the Dengie peninsula and trails through open country..

Wild Deer Leafkick at Thoresby Park returns. Set in Thoresby Park, a Pierrepont family estate with 400-year history, a 17th-century mansion, and over 1,000 acres of parkland, it features wild deer and historic cattle. Distances range from a family-friendly 2km to 5–30 miles (1–6 laps).The mostly fla..