Born in 1988 in King, Ontario
At age 11, Rosie began competing internationally and was the Canadian National Women’s Champion three times.
MacLennan was Canada’s flagbearer in the opening ceremony of the 2016 Summer Olympics.
- 2013 World Trampoline champion,
- 2012 and 2016 Olympic champion,
- 2011 and 2015 Pan American Games champion in the individual trampoline event,
- Canadian National Women’s champion in 2005, 2009 and 2011.