Trail Running calendar near Sunbury-on-Thames 2026-2027

A guided group ultra run starting and finishing in Haslemere that follows parts of the Serpent Trail and Sussex Border Path, crossing heathland, woodland and fields with a midrun refreshment stop and optional trail shoe testing.

Join the Christmas Advent Run on Sunday 29 November in Walton on Thames for a festive riverside run. Tackle timed laps to suit you and enjoy optional medal and chocolate advent calendar plus a prize draw.

A community charity run in Campbell Park, Milton Keynes offering 1.5k, 5k, 10k and half marathon options with chip timing, medals, refreshments and a fancy dress element to support Movember and men's health.

Mapledurham 10 & Half is a trail running event on 29 November 2026 at Mapledurham Estate near Reading offering 10km, 10 Mile and Half Marathon courses across woodland, fields and estate roads. On-course water, an event village and post-..

Trail 5K and 10K at Tewinbury in Hertfordshire, run on undulating dirt, grass and woodland paths. Routes are fully marked and marshalled, with an aid station on the 10K and onsite facilities including toilets and parking.

A 21.1 km trail race around Hughenden Manor and surrounding woodlands, with about 450 m of ascent. Mostly forest paths, marked route, aid stations at around 7, 12 and 16 km, and on site parking, toilets and a cafe.

A 10 km trail race around Hughenden Manor in the Chilterns, with hilly woodland and rural sections, waymarked routes and a water stop at 5.3 km. The event base offers parking, toilets and a cafe.

Timed Thames towpath run where participants choose lap distances on a 5.3 km out and back course and entry supports Rays of Sunshine Children's Charity.

A guided trail run around Box Hill in Surrey that accumulates about 1000 m of elevation over a 12.5 mile route. It features woodland, heathland and technical climbs with some scrambling and a steady group pace.

An 80 mile December ultramarathon across Essex, Suffolk and Norfolk on December 5, 2026, with multiple checkpoints, mandatory safety kit and live tracking that includes an SOS function.

Coastal 10 Mile and 10K races run from Hengistbury Head in Bournemouth along largely flat, traffic-free seafront paths past Boscombe Pier. The event features chip timing, water stations, finisher medals, and a plastic free policy.

A single loop 55 miles trail race around the South Downs starting and finishing at Plumpton Racecourse, with about 7,000 ft of ascent and seven aid stations. The course runs on grass trails, farm tracks and woodland and is a UTMB Index even..

A 50 kilometre trail ultramarathon from Dorking along the Greensand Way through the Surrey Hills AONB, including climbs of Leith Hill, Holmbury Hill and Pitch Hill. Well signed and supported with aid stations, timing and a finisher medal.

A winter trail running festival at Holmesly Campsite in the New Forest on 6 December 2026, offering 15 km, 30 km, marathon and 50 km one lap off‑road courses with marked routes, bag drop and mandatory kit requirements.

A 10 mile canicross loop at Grafham Water on 6 December 2026, following reservoir paths, woodland and the dam wall. Dog friendly with required harnesses, aid station water bowls and finishers medals plus a dog charm.

A festive trail running event at Moors Valley Country Park on 6 December 2026, offering a 2 km fun run for children plus 5 km and 10 km trail races; on-site parking is available for £5 and entry fees range from £12 to £26.

A 10 km trail championship at Wendover Woods on 6 December 2026 with entry by invitation for top 20 percent finishers at Runaway Racing events, age category winners and volunteers. The course is marked and timed, with awards and support fac..

A continuous 200 mile trail loop around the South of England starting and finishing at Juniper Hall, Dorking. Runners have up to 96 hours, live tracking, crew access and three major aid stations with food and sleeping facilities.

Join the Christmas Jumper Friday Run on 11 December in Walton on Thames for a relaxed rock up and run along the riverside towpath. Pick 5k to ultra, run laps within a 7 hour window and earn a bespoke finisher medal.

A festive midweek 7 hour Time Challenge along the River Thames at Wraysbury Skiff and Punting Club. Distances range from 3km up to 50km with medals, distance pins and a post-run goody bag including a vegan option.