Also in 1986, she was the first winner of the Ottawa Race Weekend 10K.
She has continued to run into Masters age groups, in 2003 setting the Masters world record in the 1500 meters at 4:40.92.
Her record was displaced in 2009 by former Danish Olympian Gitte Karlshøj running a hand timed 4:40.7, which is essentially the same time as de St.
Croix.She is now a founder and is the head coach of Ocean Athletics, a track club in South Surrey, British Columbia.