In 2005, she lost in the final of the Pepsi Ontario Junior Curling Championships to Erin Morrissey. She was also the runner-up in 2006, losing to Lisa Farnell. In 2014, Mann moved to Quebec and entered the 2015 Quebec Scotties Tournament of Hearts with teammates Amelie Blais, Brittany O"Rourke and Anne-Marie Filteau.
As a junior curler, Mann was the 2002 Ontario Winter Games championship playing third for Laura Payne, and won a silver medal for Ontario at the 2003 Canada Winter Games. Also in 2003, she won the Ontario Junior Mixed Championship playing third for Chris Gardner. She would win the event after posting an 8–2 round robin record, and defeating Roxane Perron in the final. With the win, Mann would go on to represent Quebec at the 2015 Scotties Tournament of Hearts, leading her province to a 3–8 record.
