Brentwood
Obstacle Race Calendar near Brentwood 2026-2027
Monthly updates for Brentwood
Get new running races (and updates) in your inbox every month.
Explore the top obstacle runs near Brentwood for 2026-2027! We've gathered 9 exciting races in the area. Check out our detailed list below to find your next local race.
November 2026
Nuclear Fallout on 7 November 2026 at Nuclear Essex offers 6 km, 12 km and 24 km plus muddy obstacle courses across farmland, woods and lakes.
May 2027
Muddy obstacle races at the Secret Nuclear Bunker Estate in Brentwood, Essex, offering 6 km and 12 km courses plus family and junior waves with signature obstacles like the Deathslide.
An inflatable obstacle course at Brands Hatch offering 2.5K laps with giant inflatables, music zones, on-course water, and medals for all participants.
June 2027
Race for Life Basildon on 19 June 2027 at Gloucester Park offers 3k and 5k courses around park lakes with accessible facilities and a minimum fundraising target.
July 2027
A 5 km outdoor obstacle and mud course in Brentwood on 3 July 2027 that raises funds for Essex Wildlife Trust; entry is £40 with a suggested £100 fundraising pledge.
Monthly updates for Brentwood
Get new running races (and updates) in your inbox every month.
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.
August 2027
An inflatable obstacle run at Hylands Park on 7 August 2027 offering lap based distances from 2.5 km to 15 km with music zones and finisher medals.
September 2027
A family-friendly muddy obstacle run in Brentwood, Essex offering 5 km and 1.5 km routes, on-course obstacles, finish-line facilities and an event village.