Obstacle Race Calendar United Kingdom 2026-2027
Monthly updates for United Kingdom
Get new running races (and updates) in your inbox every month.
Explore the best obstacle runs in United Kingdom for 2026-2027! Our updated list features 106 exciting races across the country. Find your next race in United Kingdom below and join the running community at these great events! Search for a location or view races near London, Birmingham, Glasgow, Liverpool, Scotland or Wales.
May 2027
Pretty Muddy 5k at Weston Park is an obstacle course across paths, tracks and grass with some hills and on site parking. Entrants must be at least 13 and take part in staggered wave starts while raising funds for Cancer Research UK.
Pretty Muddy 5k at Southsea Common on 8 May 2027 features mud obstacles on a flat route, a minimum £50 fundraising target, and an age limit of 13 years and over.
Nuclear Rush is a muddy obstacle race in Brentwood, Essex, with courses from 1.5 km to 12 km and signature features like the Deathslide and multi lane zip wires.
An inflatable obstacle course and fun run in Guildford on 8 May 2027 with 2.5k, 5k, 10k and 15k options, music zones, obstacles, medals and on course water.
A 115 km multistage race from Abersoch beach to Snowdon and back, combining a 1.5 km sea swim, two 49.5 km bike legs, a mountain ascent and a 1 km beach finish.
Monthly updates for United Kingdom
Get new running races (and updates) in your inbox every month.
A 5 km obstacle event at Beveridge Park, Kirkcaldy, on 9 May 2027. The grass-start course loops through parkland with steep hills and obstacles; participants must be 13 or older and a minimum fundraising target applies.
A Pretty Muddy 5k obstacle course at Braunstone Park on 15 May 2027 combining grass and path with climbs, crawls and slides. Waves start every 15 minutes, participants must be 13 or older and there is a minimum fundraising target of £50.
Two days of Spartan obstacle racing at Culden Faw, Henley-on-Thames, featuring Sprint, Super, Beast and Kids races along a riverside course.
An inflatable obstacle course at Brands Hatch offering 2.5k laps with options to run 2.5k up to 15k, music zones, finisher medals, on course water and family ticket options.
A muddy 5k obstacle course through Singleton Park with mixed terrain, staggered waves, an age limit of 13+, and on-site facilities including toilets and refreshments.
A 5 km muddy obstacle course at Birkenhead Park featuring climbing, crawling and sliding. Organised by Cancer Research UK, the event uses staggered wave starts and requires participants to be 13 or older.
A muddy obstacle run in Aberdeen on 16 May 2027 with 5 km and 10 km routes for adults and supervised teenagers, including a technical T-shirt, medal, free parking and photos.
Inflatable obstacle run at North Somerset Showground on 22 May 2027, with distances from 2.5k to 15k, inflatable obstacles, five music zones and a finisher's medal.
A countryside 5 km at Bowdon Rugby Club combining two laps, drinking stations approximately every kilometre and a mix of inflatable and non-inflatable obstacles. Up to five alcoholic drinks per runner are permitted and participants must be over 18.
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.
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.
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 5 km obstacle course at Prospect Park in Reading where participants climb, crawl and slide across grassy slopes and woodland. Waves run every 15 minutes and the event is open to people aged 13 and over.
Pretty Muddy 5k at Willen Lake is a 5 km obstacle course with mud features, staggered wave starts and a minimum £50 fundraising target for Cancer Research UK.