Trail Running calendar near Guildford 2026-2027

A 5 km obstacle event at War Memorial Park on 23 May 2027 where participants climb, crawl and slide across mixed grass and path terrain; entrants must be 13 or older and a minimum fundraising target of £50 applies.

Four point-to-point races across the South Downs National Park on runnable, non-technical trails that converge to cross Beachy Head and finish in Eastbourne; the **100k** race is part of the South Downs Triple Crown.

The Pretty Muddy 5 km obstacle course at Baiter Park, Poole on 29 May 2027 runs across grass and tarmac with staggered wave starts every 15 minutes. Participants must be 13 or older and there is a minimum fundraising target.

A Star Wars 50th Anniversary weekend on 5 and 6 June 2027 at Caldecotte, Milton Keynes featuring marathon and half marathon races around Caldecotte Lake, unique finisher medals, on-course water and toilets, and time limits for each race.

A 5k obstacle course at Royal Windsor Racecourse with mud obstacles to climb, crawl and slide, mixed tarmac and grass surfaces, staggered wave starts and a minimum age of 13. Earlybird entry prices and a fundraising target apply.

A multi-distance trail running event in the South Downs area offering 100k, 75k, 50k, 20k and 10k routes, coach transport to starts, camping, venue food and a licensed bar.

A 125 km waymarked loop following the Pewsey Vale Circular walk with about 1902 m ascent and GPX files provided. Checkpoints appear roughly every 25 km, there is a 24 hour cut off, and camping is available at Linkenholt Activity Center.

A riverside trail event at Remenham Farm in Henley-on-Thames offering a Half Marathon, 10K and a Junior Race for under 11s, with chip timing, medals, free photos and an event village.

A 100K ultramarathon in the Chiltern Hills on an anticlockwise loop from Chesham, passing Ashridge Estate, The Ridgeway and Whiteleaf Hill, with marked route, open GPS tracking, aid stations and a 19 hour time limit.