Callum won Gold in the Men’s Team Sprint in his first Olympic appearance and narrowly missed out on the Gold in the Individual Sprint to Jason Kenny, his team and roommate in Rio.
He was inspired to take up track cycling in 2004, when fellow Scotsman Sir Chris Hoy won Gold in the Kilo at the Olympic Games in Athens. Four years after taking up track cycling, Callum broke the National 200m record for his age category was presented with the Chris Hoy Trophy by Sir Chris himself in recognition for this achievement.
Callum had a promising and impressive performance at the Commonwealth Games in 2014, where he made the final in the Team Sprint.
