East of England
Obstacle Race Calendar East of England 2026-2027
Monthly updates for East of England
Get new running races (and updates) in your inbox every month.
Explore the best obstacle runs in East of England for 2026-2027! Our updated list features 16 exciting races across the region. Find your next race in East of England below and join the running community at these great events!
August 2026
Special edition Rat Race obstacle event at Burghley Estate on 15th August 2026 featuring a 4 mile loop with over 60 obstacles and proceeds to Project Jungle.
MacTuffX Bedford on 30 August 2026 combines ten Xercises with repeated 400 m or 800 m runs across solo, doubles and five-person relay formats.
September 2026
A muddy obstacle-course run in Brentwood with 5 km and 1.5 km options, achievable obstacles, finisher medals and post-race wash-downs.
A women only muddy obstacle course in Brentwood, Essex covering 5 km with varied obstacles, wash facilities, a finisher medal and an inclusive, non competitive format.
Monthly updates for East of England
Get new running races (and updates) in your inbox every month.
October 2026
Inflatable 5K in Norwich on 17 October 2026 offers giant inflatable obstacles, music zones, medals and distances from 2.5k to 15k for all ages.
November 2026
A November muddy obstacle event in Essex offering 6 km, 12 km and 24 km+ courses with natural and man‑made obstacles including a Deathslide and zip wire.
March 2027
A PARAS'10 event in Friday Woods featuring a 3 mile loop with one to three laps, categories for runners, TAB entrants and canicross. A 2 mile junior race is available for ages 10 to 15.
April 2027
Inflatable obstacle course in Huntingdon on 10 April 2027 with giant inflatables, multiple distances and family friendly entry rules.
Inflatable obstacle course event in St Albans on 24 April 2027 with 2.5 km laps and distance options from 2.5 km to 15 km, family friendly rules and on site facilities.
May 2027
A 5 km Pretty Muddy obstacle course at Norfolk Showground with a mix of paths and grass, staggered wave starts every 15 minutes and an age limit of 13 and over. The event supports fundraising for Cancer Research UK.
Muddy obstacle races at the Secret Nuclear Bunker Estate in Essex with 6 km (40+ obstacles) or 12 km (70+), featuring a 20 foot Deathslide and zip lines.
June 2027
A muddy 5k obstacle course at Cassiobury Park where participants climb, crawl and slide through timed waves while raising funds for cancer research.
A 5k obstacle course at Trinity Park with muddy climbs, crawls and slides, held in staggered waves. The grassy course is fairly flat and the event requires participants to be 13 or older.
July 2027
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.
A muddy 5k obstacle course at Hylands Park, Chelmsford on 18 July 2027 organised by Cancer Research UK to raise funds; participants must be 13 or older.