Trail Running calendar near Welwyn 2025-2026

The 10k Rauceby Estate Run Summer takes place on the Rauceby Estate in Lincolnshire. The course covers approximately 10 kilometres (just over 6 miles) and is described as a brand-new all-terrain route. A standout feature is that at least a quarter of the route traverses private land that has never h..

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..

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..

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..

Eridge Park 10 Trail Challenge, staged at Eridge Green in Tunbridge Wells, Kent, marks its 25th anniversary in 2025. The 10-mile off-road trail race is renowned as a favourite among trail runners, offering stunning scenery, steep, narrow climbs and plenty of mud along a traffic-free route through Er..

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...

Harbour Wallbanger is a coastal 7k running event staged by Sporting Events UK, in partnership with Thanet Roadrunners AC. The race starts on Broadstairs Beach at low tide, heads to Ramsgate to 'bang the Harbour Wall,' and returns along the coast to Broadstairs in Kent. The event welcomes beginners 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..

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..

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..

Petzl Night Trails 10K at Coombe Abbey Park, Coventry, is a 10-kilometre after-work night trail run hosted by Big Bear Events. The route weaves through woodland, meadow and grass fields with exposed roots, gates and an undulating but not hill-heavy profile, potentially muddy depending on conditions...

Run to the Sea Bournemouth is a 50-kilometre, point-to-point ultramarathon from Moors Valley Country Park to Hengistbury Head in Bournemouth. The flat, scenic course is multi-terrain, weaving forest trails and seafront paths for a potential entry into ultrarunning or a fast 50k challenge. Runners re..

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 Guided 50k Ultramarathon in New Alresford, Hampshire, offers participants a scenic running experience through beautiful trails, including sections of the Watercress Way and Oxdrove Way. This event is designed for those who have completed at least a 20-mile run in the past year and will be conduc..

The Guided 15 Mile Run in New Alresford, Hampshire, offers a scenic experience for runners looking to tackle the first loop of a 50k event. Participants can enjoy the beautiful trails of the Watercress Way and Oxdrove Way, starting and finishing in the charming market town of Alresford. This relaxed..

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..