Trail Running calendar near Guildford 2025-2026

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..

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 South Coast Challenge will take place in Eastbourne on Saturday 6 September 2025. You can run between 16 and 63 miles.

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 Beast is a challenging 13-mile race hosted by Poole AC, showcasing the stunning landscapes of Dorset. The course begins at Corfe Castle Common, traversing through Worth Matravers and along the coastal path, offering breathtaking views. Runners will encounter a few hills on their return to Corfe...

The Carnival Chase is a scenic running event held in Warminster Town Park, featuring a 10K, 3K, and a new 1.2K Family - Wheelchair - Buggy Fun Run. The course winds through country lanes, tracks, and trails, starting and finishing near the boating lake, with no stiles but some kissing gates. The eve..

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..

Jurassic Coast Ultra Run is a 30-mile coastal trail around Studland Bay and Swanage in Dorset. Starting on the beach, the route runs inland along the Purbeck Way to Corfe Castle, then climbs to the ridge for coastward sections past Kimmeridge Bay and along the South West Coast Path, finishing on Stu..

Bradenham Blast is a popular trail-running event in the Chiltern Hills at Manor Farm, Bradenham, High Wycombe, HP14 4HF, United Kingdom. It offers 5 km, 10 km, and a Half Marathon (13.1 miles) option introduced in 2025. Hosted in the UK’s only arable nature reserve, the race features wildflowers and..

SOX 10km, organized by Racing Line Running, is held at the South Oxfordshire Brewery in Ipsden (OX10 6AS). The open-to-all event offers a 10km multi-terrain course (60% off-road) suitable for all abilities and is canicross friendly. The route uses typically private trails, woodlands, fields and loca..

Westonbirt Arboretum Summer 2025 offers a family-friendly running event at Westonbirt Arboretum, near Tetbury, Gloucestershire (GL8 8QS). Runners can choose from 1 mile, 5km, 10km, and half-marathon distances, with a course described as varied and beautiful, winding through arboretum zones dedicated..

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..

Isle of Wight Fell Race Series, staged by Ryde Harriers, is the island’s Fell Running Championship Series incorporating the SEAA Fell Running Championships. The 2025 edition runs Saturday 13 and Sunday 14 September, with headquarters at St Catherine's School, Ventnor. It features three races: St Bon..