Trail Running calendar near Brentwood 2025-2026

We have found 316 Trailruns within 80 miles of Brentwood. See below where and when you can find the races.

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..

The Pumpkin Run takes place on 28 September 2025 at Foxes Farm, Halstead Road, Eight Ash Green, Colchester, CO6 3PT (bus route 88). The event offers a looped course through fields, the pumpkin patch and a corn maze on traffic-free farm tracks. The route is described as mostly flat. A dog-friendly 5..

The Les Virades de l'Espoir à Ambleteuse will take place in Ambleteuse on Sunday 28 September 2025. You can run between 6 and 50 kilometers.

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..

October 2025

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

Bolt Round the Holt is a trail running event held at Alice Holt Forest in Hampshire, featuring distances of a half marathon, 10k, 5k, and a junior run. The course consists of undulating forest trails with picturesque, sun-dappled scenery, offering a challenging yet scenic experience. The 5k route fo..

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..

Dovedale Dash is an iconic cross-country race held around Thorpe, near Ashbourne in the Derbyshire Peak District. The main race covers 4 3/4 miles, taking runners along field paths and open ground through the valleys of the River Dove and Manifold. A highlight is the crossing of the Dove at the Step..

Steeple Barton Chase is an annual running event held at Barton Abbey, halfway between Oxford and Banbury in Oxfordshire, UK, just off the A4260. The event offers multiple distances to suit all abilities: a 10-kilometre main race, a 5-kilometre option, and a Family Fun Run around the cricket grounds...

Rushmoor Wellesley 10k is a community‑organised running event in Aldershot, Hampshire, starting and finishing near the historic military town. The flat course runs mainly along Wellesley Woodlands footpaths and the Basingstoke Canal towpath, finishing in the Military Athletics Stadium. It’s run by B..

Thames Meander Autumn is Hermes Running’s scenic riverside race series, starting from the Petersham & Ham Sea Scouts HQ, Douglas House Meadow, Richmond, TW10 7AH. Runners can choose from three flat, fast routes along the Thames Path: 10km, half marathon (13.1 miles), or marathon (26.2 miles). All ar..

The Thompson Millennium Green 10k and 5k take place in Thompson, Norfolk on 05/10/2025. Both races use multi-terrain routes that run along pathways, lanes, bridleways, tracks across farmland and byroads in and around Thompson. The courses start and finish on the Green and include sections on Gristo..

This is an orienteering event held at Knole Park, a deer park with open land and forest and a network of rides and paths. Entry is by online advance registration only. Contactless electronic timing (SIAC) will be used; basic non-SIAC timing devices are available free of charge and SIAC dibbers can..

The East Grinstead 10k is scheduled for Sunday, 5 October 2025. The event is organised by volunteers from East Grinstead Runners and supporting local clubs and charities. Field size is expected to be around 300-400 competitors. Profits are donated to East Grinstead Lions and their prostate cancer s..

8 Bishopsgate Stair Climb is a charity stair-climb event in London, held at 8 Bishopsgate, EC2N 4BQ. Climbers ascend the building’s 50 floors, totaling 1,135 steps to a viewing gallery at the top of the 203-metre tower, where panoramic views of the city await. The climb is designed for all paces—par..