Trail Running calendar near Stevenage 2025-2026

The Chelmsford Brew Co Summer August Ale Trail 10K is a fun, charity-focused running event held in Chelmsford, supporting the British Heart Foundation. The 10K course is a GPX/Strava-mapped trail with a narrative guide, designed for enjoyment rather than competition. Participants receive a drink and..

Henley River Half Marathon, 10k & Juniors August 2025 is a RunThrough UK event held in Henley-on-Thames, UK. The course offers a fast scenic trail around Henley-on-Thames, starting and finishing by Temple Island Meadows, the official start line for the Royal Henley Rowing Regatta. Distances availabl..

London Backyard Ultra is an endurance running event held at Frylands Wood Scout Outdoor Centre in Croydon, London. The event features a 4-mile (about 6.4 km) lap every hour, continuing until only one runner remains. The wooded venue offers a woodland course with a supportive, community atmosphere ty..

The Pitsea RC Crown to Crown 5k is an off-road trail race held at Westley Heights Country Park, Langdon Hills. The 5-kilometer course mainly follows bridleways, starting on Beeleigh Avenue, passing through Lee Chapel Lane, and looping around the Essex Wildlife Trust's Willow Park before finishing at..

The T184 is a challenging 184-mile self-supported adventure race following the River Thames from its source near Cirencester to the Thames Barrier in London. Participants navigate through scenic towns, villages, and iconic London landmarks, completing the course within 76 hours. The route alternates..

The 2nd Galloping Grind 10k Trail Run takes place in Boreham, Essex, offering a challenging 10-kilometer course predominantly run in an anti-clockwise direction. This dusk race encourages participants to wear high-visibility or reflective clothing for safety. The event features a new course for 2025..

The Ickworth Sunset Chase is a scenic running event held at Ickworth Park, a National Trust estate near Bury St Edmunds, Suffolk. Offering 5K and 10K distances, the race starts at sunset, guiding runners through landscaped parkland, meadows, forests, and rolling countryside. The course features mult..

Set in the Surrey Hills, the Shere 42k, 21k & 10k Multi Terrain Event offers three trail running options from the picturesque Shere Recreation Ground. The 10k covers woodland and rolling trails with a 123m ascent; the 21k climbs about 543m across North Downs and Ranmore; the 42k marathon lifts aroun..

Victoria Park Summer Series returns 6 September in Ashford, at Victoria Park. It offers two 60‑minute scores: Long Score for experienced navigators (20 controls, 90–109, with two dumbbell bonuses) and Short Score for beginners and families (60 minutes, 20 controls). Scoring is 10 points per control..

The St Albans Stampede - 12hr Enduro is an ultra marathon held in the scenic Hertfordshire countryside, featuring parts of Heartwood Forest and Nomansland Common. Participants aim to cover the greatest distance by running multiple four-mile loops within a 12-hour period. The event accommodates solo..

The Andover Trail Marathon, held in North Hampshire at Kings Road, Enham Alamein, offers both a full marathon (26.2 miles) and a half marathon (13.1 miles) through scenic trails. The marathon route follows the Testway up to Coombe Gibbet, Hampshire's highest point, then returns via the Conholt estat..

The Hackpen Hill 10k Trail Run is an annual off-road event held near Weir Farm, Broad Hinton, Swindon, Wiltshire. Celebrating its tenth year, the race features a challenging one-lap course that traverses farm tracks, fields, mud, and rolling hills alongside the historic Ridgeway trail. Suitable for..

The Muntjac 15 is a trail running event held on September 7, 2025, featuring a 15-mile course that connects five beautiful woodlands. This race is ideal for runners who enjoy hilly terrain, wooded areas, and single-track trails, offering a scenic and challenging experience. With a limited number of..

The Coln Valley Charity Trail Run, held near Coln St Aldwyns and Bibury, offers 2km, 5km, and 10km trail distances suitable for all ages and abilities. Set in the scenic Coln River valley, the event features mostly grassy, undulating terrain with a mix of cross-country elements, including hay bale h..

Bradenham Blast is a trail running event in the Chiltern Hills at Manor Farm, Bradenham, near High Wycombe, UK. Boondock Events offers 5km, 10km, and a new half-marathon for 2025. The courses are hilly, scenic, and suitable for many abilities, weaving through tranquil beech woodland and rugged trail..

SOX 10km is a 10km multi-terrain race organized by Racing Line Running, taking place on September 7, 2025, starting and finishing at the South Oxfordshire Brewery taproom in Ipsden, Oxfordshire. The course blends private terrain, trails, woodlands, fields and local roads, with around 60% off-road an..

The Sufferings is a multi-distance trail event in West Sussex, organized by Sussex Trail Events. The race begins at Washington Village Hall in Washington, RH20 4AP, and offers Half Marathon, Full Marathon, and a 39 Mile Ultra. Runners tackle the steep, rugged tracks of Chanctonbury and Cissbury ring..

The Farnham Pilgrim Marathon is a scenic and challenging running event held in Farnham, Surrey, starting from The Sands on Seale Road. The marathon offers spectacular views across the Surrey Hills, known for its hilly and multi-terrain course that tests runners' endurance. Alongside the full maratho..

HAVOC Twilight Series 2025 No.1 – South Ockendon is a mid‑week twilight street orienteering event in the village of South Ockendon, north of the Dartford Crossing and Lakeside. The event is MapRun-based with a single score course and two time limits: 60 minutes (Long) and 40 minutes (Short). Points..

The c2c Essex Ultra 2025 is a charity ultramarathon along the Essex Riviera, held in September. Contestants can choose 50 miles from Upminster or 30 miles from Tilbury, finishing at Thorpe Bay. The course follows the Thames eastward, using the London Loop and England Coast Path, with mainly tarmac u..