Experience the ultimate challenge at Nuclear Fallout, a true winter beast!
Choose your distance on our award winning 6K or 12K muddy obstacle course. Whether you’re a first-timer or a seasoned obstacle racer, the course is designed to be fun and challenging for all fitness levels.
Expect a mix of natural and man-made muddy obstacles, from woodland and bogs to our famous Deathslide.
6K : Ages 14+
12K : Ages 16+
All listed events based in the UK have been licensed by British Obstacle Sports, and all events listed are covered by British Obstacle Sports membership insurance. Please note that events remain the responsibility of the event organisers, and British Obstacle Sports does not manage or deliver the events unless stated.
Our mission is to ensure that everyone in the UK can enjoy the endless possibilities of obstacle sports.
© 2026 | British Obstacle Sports
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