The start list

Our selection of the best, fastest, toughest, quirkiest and most enjoyable UK races this month

Split the marathon distance between a team of six in this Run For All event starting from the University of York. Walk or run legs between three to six miles on a fast and flat course through York. Pe

Sometimes you have to do things that scare you. At least, that’s what I kept telling myself ahead of the Dartmoor Discovery, a 32-mile, 899-yard ultramarathon with more than 4,000ft of elevation. And

24 SWYD SPRINT TRIATHLON ( SPRINT) (750m S/20km B/5km R) Barry Island, Wales. allornothingevents.com 27 DORNEY LAKE MIDWEEK TRI (various dists) Dorney Lake, Windsor atwevents.co.uk 28 PARK BRYN BACH A

Race director Michael Sanderson guides you on this challenging but enjoyable West Yorkshire loop

Our selection of the best, fastest, toughest, quirkiest and most enjoyable UK races this month