While Boudreau's major professional career was modest, he had a long career in the minor leagues, and was one of the most prolific minor league scorers of all time, largely in the American Hockey League. Spending most of the early part of his career with Maple Leaf farm teams (Dallas Black Hawks, New Brunswick Hawks and St. Catharines Saints), Boudreau also spent significant time playing for the Springfield Indians (for whom he won his only scoring championship, in 1988), the Fort Wayne Komets and the Nova Scotia Oilers. He remained a star and top scorer right through his final season in 1992. His final game came in Springfield, where he had been signed by the Adirondack Red Wings as an emergency injury replacement during their first round Calder Cup playoff series against the Indians.