In 2001, Clarke held the position of the fourth fastest woman in Canada.

Clarke's personal best time was 1:11.29 seconds, achieved in July 2001 in Ottawa, Ontario.

Clarke reached the quarter-final at the 2001 World Championships, but got disqualified due to a failed drugs test.

It was later revealed that at a World Championships pre-camp, Clarke had tested positive for stanozolol.

This biographical article relating to Canadian athletics and track and field is a stub.