London
Obstacle Race Calendar near London 2026-2027
Monthly updates for London
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Explore the top obstacle runs near London for 2026-2027! We've gathered 19 exciting races in the area. Check out our detailed list below to find your next local race.
October 2026
An inflatable obstacle course event at Kempton Park Racecourse on 3 October 2026 with 2.5K, 5K, 10K and 15K options for ages 5 and up.
A family friendly 5k obstacle and colour run near Dorking Surrey in October 2026 with mud, water features and obstacles for ages 6 and up.
Military style obstacle mud run at Hever Castle Kent with 3 km, 6 km and 12 km options and many obstacles modelled on Royal Marines training.
A relaxed night obstacle run at OPP over two 1.5 km laps, with technical obstacles, surprise elements and a strict headtorch requirement.
November 2026
Muddy obstacle runs in Brentwood, Essex offering 6 km, 12 km and 24 km plus options across farmland, woods and lakes with dozens of natural and man made obstacles.
Monthly updates for London
Get new running races (and updates) in your inbox every month.
March 2027
Winter Nuts Challenge on 6 March 2027 at Henfold Lakes near Dorking is an obstacle mud run on a 5 km loop with options for one, two, four or unlimited laps.
A quirky running event in Dorking where pairs carry an adult over a 380 m out and back course with obstacles, a weigh in, helmet requirement and novelty prizes.
April 2027
An untimed inflatable obstacle event in St Albans on a 2.5 km lap with distances from 2.5K to 15K, medals, music zones, and on-site facilities.
May 2027
Nuclear Rush is a May obstacle race at the Secret Nuclear Bunker Estate in Essex offering 6 km and 12 km courses with 40+ and 70+ obstacles, plus family and kids races.
An inflatable obstacle course event in Guildford on 8 May 2027 offering 2.5k to 15k lap distances, music zones, finisher medals and family friendly entries.
Inflatable obstacle-course event at Brands Hatch on 15 May 2027 with 2.5k to 15k lap options, music zones, family entries and finishers' medals.
June 2027
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 muddy 5k obstacle course at Cassiobury Park where participants climb, crawl and slide through timed waves while raising funds for cancer research.
July 2027
A muddy 5km obstacle run at Wild Forest in Brentwood on 3 July supporting Essex Wildlife Trust, with safety teams, parking, showers and a medal for each participant.
A muddy 5k obstacle course at Fairlands Valley Park in Stevenage with staggered waves, on-site facilities, a minimum fundraising target of £50 and age 13 and over requirement.
Pretty Muddy 5k at Hylands Park Chelmsford on 18 July 2027 is a grass obstacle course with climb crawl and slide elements, staggered wave starts and a minimum age of 13.
A Pretty Muddy 5k at Tilgate Park with obstacles on woodland and lakeside paths, a double lap course and a minimum age of 13.
August 2027
Experience a recreation focused obstacle event in Chelmsford featuring multiple distance options and up to 90 giant inflatable obstacles for participants of all abilities.
September 2027
Mud Tribe in Brentwood offers muddy obstacle courses of 1.5 km and 5 km with foam and water features, hot wash downs, a finisher medal and family friendly facilities.