Trail Running calendar near Harwell 2026-2027

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.

The Saturn Running - Egham will take place in Egham on Friday 11 December 2026. You can run between 5 and 50 kilometers.

Part of a festive Christmas series, this event lets you choose your distance from 5k to Ultra on a tough off-road course at Pengethley Manor. You have seven hours to complete your run or walk. A virtual option allows participation from anyw..

Part of a festive Christmas series, the 8 Maids a Milking run offers a choice of distances on a tough, off-road course at Pengethley Manor. With a 7-hour time limit, it's open to both walkers and runners. You can also take part virtually fr..

Join the Mince Pi Run in Guildford for a Pi themed run by the water, with distances from a 1 mile kids fun run to the 3.14 mile loop and laps up to a Pi marathon. Every finisher gets a bespoke Pi Pie medal.

Salcey Forest Christmas Race offers flat but muddy tree lined trails for 5k and 10k plus a junior fun run. Seasonal fancy dress is encouraged with a best outfit prize, and proceeds support Shelter.

A 10 mile cross country run through the West Wight landscape on 13 December 2026, with hilly terrain, strong marshal support and a memento for finishers. Entry is limited and the published fee is £27.50.

The 12 Drummers Drumming Run offers a festive challenge on December 17, 2026, with distances from 5k to an ultra marathon. It's a UKA-licensed event open for both in-person and virtual participation. Registration is available until the even..

Celebrate Christmas Eve with the Die Hard Christmas races around scenic Caldecotte Lake in Milton Keynes, with marathon and half marathon options. Enjoy lakeside laps, friendly race support and a bespoke finisher medal.

A seven hour Time Challenge along the River Thames at Wraysbury Skiff and Punting Club in Egham, with distances from 3 km up to 50 km. Finishers receive a Christmas themed medal, distance pins for half marathon and above, and a goody bag.

Winter X is a mid-winter trail-running event in the Meon Valley offering 10, 30, 50 and 70 km on marked public trails with checkpoints and post-event food. Entries for 2025 are closed; a provisional date for 2026 is 28 December 2026.

Winter Runderland in Walton on Thames is a timed lap event on a 5.3 km riverside towpath course. Runners may select distances from 5 km up to ultra, and a lower-cost no-medal entry option is available.

Trail races at Wenchford Picnic Site offering a 7 mile course with seven named hills and a 14 mile double lap option. Terrain can be muddy and wet and canicross waves are available.

A January trail race around Box Hill with a measured 10.000 km course, 473 m ascent and 335 m descent. Registration and parking at Denbies Vineyard; earphones are not permitted and an alternative Denbies course is used if Box Hill is closed..

Join the Penshurst Village Cross Country Run on Sunday 3 January 2027 for challenging 5 mile and canicross races over scenic local trails and open ground. Enjoy a friendly village atmosphere and a great day out for runners and their dogs.

A 43 mile point to point ultra from Wendover to Little Venice, London, mixing country trails and Grand Union Canal towpath. The race includes GPS tracking, five checkpoints, baggage transfer, mandatory kit and an 11 hour cutoff.

The Doughnut Dash is a flexible-distance run along a flat Thames riverside trail. Participants can run from a single lap to ultra marathon distances while enjoying doughnuts. All finishers receive a custom, neon-colored medal.

A countryside trail run around Farley Mount in Hampshire with two route options, including a Half Marathon. The course is rolling with tree-lined sections and vistas, starts at Sparsholt College with ample parking, and offers finisher medal..

The Slothful Run is a laid back event with a twist: choose your distance from 5k to Ultra, but you have seven hours to complete it. This off road course at Pengethley Manor features a tough 2.5 km loop through vineyards. You can also run vi..

The 7 Deadly Sins 7in7 is a seven-day off-road running challenge in Ross-on-Wye. You can run a chosen distance each day over a tough vineyard course within a 7-hour window. A virtual option also lets you earn unique themed medals by running..