Ben Fleetwood is probably the youngest person to have completed a round. He climbed the final Munro of his round - Ben More - on 30 August 2011 at the age of 10 years and 3 months. The youngest completionist to have done the round without the presence of a parent or a guardian is probably Andy Nisbet, who finished his round in 1972 aged 18 years and 1 month.