Serwa won a national championship in 2009 at Canada Olympic Park in Calgary, defeating world champion Ashleigh McIvor.

[3] At the 2010 Winter X Games two weeks before the Olympics, Serwa managed to win a bronze at the famous cash event, fellow countrywoman Ashleigh McIvor had finished second.

During the next season Serwa won the gold at the X Games with a dramatic finish flying 150 feet in the air and crashing out badly injured, but the champion.

On February 21, 2014, Serwa won silver in women's ski cross during her second Olympics, finishing behind gold medalist and Canadian teammate Marielle Thompson.

Serwa suffered a training accident in December 2016 and considered retirement from ski cross, but ultimately returned to the sport following knee surgery.