Tracy Duncan began rowing at age 17 in 1988. In August of 1989, she competed in the Canada Summer Games in Saskatoon. She competed in the women's fours and won a bronze medal, the first time Saskatchewan had won a rowing medal since the Games began in 1967. Duncan added a second bronze in women's eights.
Five years after she started to row, Tracy qualified for the national team. She won a silver medal in the 1993 world championships. That same year, she also won gold at the World Universiade for student-athletes. Duncan competed in the world championships three other times, as well as the 1999 Pan-American Games in Winnipeg.
Tracy was the first female rower from Saskatchewan to compete in the Olympics, placing ninth in lightweight double sculls in 2000 in Sydney, Australia.
She has co-ordinated the learn to row program in Saskatoon, developed new rowers in Victoria and coached in Ottawa and England.