Machon was born on 23 November 1990, in Sheffield, Yorkshire, England.
[4] At the start of the Olympic qualifying season, Machon was ranked in the top 15 by the Association of Freeskiing Professionals, a position he feels is his "greatest sporting achievement so far".
[5] Shortly before the selection for the 2014 Winter Olympics, Machon was recovering from a severe[2] knee injury,[6] he had a tear in his anterior cruciate ligament, which kept him from competing for eight months;[2][7] it was torn in training in Austria.
[3] Machon said that his competing after he tore his ligament was "looking virtually impossible", but he was happy he overcame the injury.
[10] Machon's brother, Robert, also skis competitively, and is a member of the England Team.