Nuclear Fallout OCR Races

About Nuclear Fallout OCR Races

Nuclear Fallout OCR Races The Nuclear Fallout OCR Races in Brentwood, Essex on 1 November 2025 includes a 6km or 12km distance as well as the Oblivion Samhain endurance OCR challenge. The 6km (40+ obstacles) is a 1-lap course and the 12km distance is 2 laps of the 6km course. Both are chip-timed. Expect a wide range of natural and man-made obstacles over undulating farmland, in woodland, lakes and bogs. Attempt as many or as few obstacles as you like. The Oblivion Samhain has competitors complete as many laps of the 6km course as they can in 5.5 hours - this has the potential for up to 35K with 200+ obstacles. See also the Oblivion Extreme held as part of the event. Mud / OCR: 6K with 40+ obstacles (14 years+) 12K with 70+ obstacles (17 years+) Kids Oblivion Samhain - Multi 6K laps in 5.5 hours

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