 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 (AHL).His junior career was spent with the Toronto Marlboros of the Ontario Hockey Association (OHA), for which he averaged over 100 points a season.He scored 165 points in his final season in juniors, adding 44 points in 27 games en route to captaining the Marlies to a Memorial Cup championship.