This challenge is one of the ultra fell routes highlighted on the Gofar website. I ran this solo yesterday in 8 hours and 40 mins, starting and finishing at the Cross Keys on the A683, going in an anti-clockwise direction, following this schedule . A fantastic round, saw only a few folk, felt quite lonely at times apart from fleeting meetings with fell ponies (not the human form). Glad the visibility was good for my first venture onto these hills, or else completing it might have taken a lot longer. Total distance was 38 miles and 3550m ascent. Slightly more than is quoted on the website.