Rising to fame as a Canadian trampoline gymnast, Rosie MacLennan is the reigning World Trampoline champion, Olympic champion and Pan American Games champion in the individual trampoline event.Along with many achievements as the Canadian National Women's champion in 2005, 2009, and 2011, as well as the World Champion in the synchro event with Karen Cockburn. Rosie MacLennan has also won five silver and four bronze medals in World Championship competition in both the individual and synchro events.
As the youngest of four, Rosie MacLennan often tagged along to her older siblings' trampoline lessons. When she was a seven-year-old child, Rosie could no longer just watch from the sidelines and she finally got her turn on the trampolines at Airborne Trampoline Club. Afterthat, she and her siblings continued to train in Skyriders Trampoline Place.
MacLennan trains at Skyrider's Trampoline Place in Richmond Hill, Ontario with