A rather quiet and modest man, Jack's affable mien defies his lifetime commitment to winning.

He competed at world-class level in a handful of some of the toughest sports: in orienteering, fell running, triathlon and duathlon, winning a range of national and international events. He represented Great Britain many times in various World and European Championships and was the top performing Scottish athlete in the demonstration triathlon event at the Commonwealth Games in Auckland in 1990.  Over the past decade, he has been identifying and coaching talented young triathletes and building a performance centre around them to suit their individual needs. Until recently he was working from the Triathlon High Performance Centre at Leeds Metropolitan University, where he moulded his athletes into World and European champions. He created a culture of ongoing success and played a colossal role over the last 10 years in coaching Alastair and Jonathan Brownlee to be Olympic gold and bronze medallists and World Champions.