Colleen Smith was one of the 57 players born in Canada to join the AAGPBL in its twelve-year history. She made 40 appearances at third base for the Grand Rapids Chicks in its 1946 season, posting a batting average of .184 (18-for-98) with four RBI and seven runs scored, including a double and three stolen bases. As a fielder, she collected 45 putouts and 81 assists, committing 11 errors in 137 chances for a .920 career fielding average.