Quote Originally Posted by Full Moon Addict View Post
BG at the official distance of 72.
Where does this "official distance of 72" come from?

Bob Graham Round website states:

The Bob Graham Round of 42 peaks is one of the most demanding challenges in England.With a ascent of app' 28,500ft and a app' distance of 74 miles.
I have read that the distance could be as low as 61 miles.

However the distance is not important as the challenge is to reach all 42 peaks from the start to the finish within 24 hours.