It's worth following the V3K link to see how crazilly hard this event is:
Add to the mix that last Saturday (30th June) brough the hottest conditions in recent years and the dehydration, pain and suffering are easy to imagine.
Steve C and Mick W gave it a go and both - dutifully - suffered horribly. Mick finished totally exhausted in a time just under 14 hours whilst Steve unfortunately got 'retired' by staff with a suspected broken toe; having already covered the worst of the terrain.
The video (taken by, and mainly featuring, Mick) gives mere mortals an idea of what's involved...