Michelle Dumaresq (born 1970)[1] is a Canadian professional downhill mountain bike competitor and trans woman.
She entered the sport in 2001, six years after completing gender reassignment surgery, when she was discovered riding on Vancouver's North Shore by several top women mountain bikers.
Protests ensued and a petition was created and signed by female (and a few male) racers, asking for Dumaresq to be disqualified.
She repeated her Nationals win in 2004 and finished 17th at the 2004 World Mountain Bike Championships held in Les Gets, France.
At the 2006 Canadian Nationals, a protest from one of her competitors during the podium ceremonies brought renewed attention to Dumaresq's participation in female sports.