Trail Running calendar near Guildford 2026-2027

We have found 513 Trailruns within 80 miles of Guildford. See below where and when you can find the races.

Join a community run through the paths and trails of Campbell Park to support Movember. Choose from 5k, 10k, or half marathon distances and enjoy a chip timed race complete with unique medals and fancy dress prizes.

December 2026

Trail 5K and 10K around the grounds of Tewinbury hotel near Welwyn, on fully marked and marshalled trails. Mixed dirt, grass and woodland underfoot, with a 5.3 km aid station on the 10K and chip timing plus finisher medals.

A trail half marathon around Hughenden Manor and nearby woodlands covering 21.1km with about 450m of ascent. The waymarked forest route includes several aid stations and chip timing.

Experience a scenic 10 km trail run through the historic Hughenden Manor estate near High Wycombe. This hilly course features spectacular woodland paths and rural trails with full marking and on site facilities.

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.

Experience a flat and traffic free run along the spectacular Bournemouth seafront. Take in views of the Jurassic Coast and Boscombe Pier during your choice of a 10 mile or 10k race.

Trail races run from Swanage along the Jurassic Coast Path on 5 December 2026, with 10K, half marathon, marathon and an ultra on marked, timed courses. Online check in and basic on-site services are provided.

Experience a winter ultra marathon through the trails of East and West Sussex. Choose from three single loop distances starting in Eastbourne and passing the famous Seven Sisters.

Experience an ultramarathon through the Surrey Hills starting from Dorking. Run over Leith Hill and Pitch Hill on a signed 50 km trail route that qualifies for the UTMB index.

UTMB Index

Enjoy a festive 10 mile multi terrain run through farm tracks and quiet roads in East Sussex. This holiday themed event features fancy dress, recycled medals, and mince pies for finishers.

Experience a festive trail running event through the woodland and heathland of the New Forest National Park. Choose from distances ranging from 15km to a 50km ultramarathon on fully marked off road courses.

Experience a scenic 10 mile multi terrain run circling the reservoir at Cambridgeshire's Grafham Water. This winter event features a fast start on the dam and includes a custom medal and free race photos for all finishers.

Experience a festive trail run through the winter woodland and lakeside tracks of Moors Valley Country Park with 2km, 5km, and 10km options for all ages.

Join this end of season 10K trail championship at Wendover Woods featuring a marked route with 295m of elevation. Qualification is required for this exclusive event which is open to top finishers and volunteers.

Experience an incredible winter running adventure on this 200 mile continuous loop through the South of England. Navigate iconic national trails over 96 hours with support from major aid stations and live tracking.

UTMB Index

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.

Enjoy a flexible festive run along the River Thames with distances ranging from 3km to Ultra Marathon. This 7 hour time challenge welcomes runners and walkers of all abilities to earn a medal and goody bag.

A timed trail event in the Forest of Bere featuring a 3.28 mile lap and distance options from 5 km to ultra. Aid station serves sweet and savoury food including potatoes and vegan choices, and 20% of proceeds support Forestry England.

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.

Celebrate the season with forest trail races in Salcey Forest featuring flat 10k, 5k, and junior routes. Enjoy a festive atmosphere with fancy dress prizes and bespoke medals while supporting the charity Shelter.