date tbcWith 20(ish) miles of mud, sand, ups, downs, fields, and the infamous bog, running the Devon-based Grizzly course is an experience revered among its followers, who come from all over the UK. Join its 1,500-strong field and you could even become
in the series, this race is tucked away in wild woodlands. Be prepared to pull yourself up hills, tumble down the other side and wade through bogs, water, sand, marsh and other muck, including the extra-tough challenge of the Turbo X Zone. Brilliant goody
