In the 2011 Trampoline World Championships in Birmingham, England, Cockburn and MacLennan secured two places for Canadian women in the 2012 Summer Olympics and Cockburn won a Silver medal for the synchronised trampoline event (with MacLennan) and a Bronze medal for the Team competition.
In the 2011 Trampoline World Championships in Birmingham, England, Cockburn and MacLennan secured two places for Canadian women in the 2012 Summer Olympics. Cockburn finished in 4th place in the 2012 Summer Olympics's individual trampoline and won a Silver medal for the synchronised trampoline event (with MacLennan) and a Bronze medal for the Team competition.