The UTMB course has aa pretty high Overall Effort rating by my scoring .
It 's completed by lots of people every summer , many of whom have done little or no training for the trip - they just take 10 or 12 days to complete it .
The UTMB course has aa pretty high Overall Effort rating by my scoring , but it 's completed by lots of people every summer , many of whom have done little or no training for the trip - they just take 10 or 12 days to complete it .