The Bob Graham Round is a fell running challenge in the English Lake District. It is named after Bob Graham (1889–1966), a Keswick guest-house owner, who in June 1932 broke the Lakeland Fell record by traversing 42 fells within a 24-hour period.
The Round was first repeated, in a better time, in 1960 by Alan Heaton. Since then over 2000 individuals have completed the Round with the fastest time being 12hr 52m set by Kilian Jornet, surpassing by more than a hour, Billy Bland's record which had stood for 36 years. The women's record is 15hr 24m set by Jasmin Paris in 2016. The Lakeland 24 Hour record has also been improved with the current holder, Mark Hartell, successfully reaching 77 summits in the allotted time.
Along with the Paddy Buckley Round and the Ramsay Round, the Bob Graham Round is one of the classic big three mountain challenges in the UK. Some thirty individuals have completed all three.
(Taken from Wikipedia)