He played junior for the Ottawa Rideaus in the Ottawa City Junior League in 1924-25. McInenly then played in the Ottawa City Senior League with the Ottawa Shamrocks and the Ottawa Gunners. The Detroit Falcons signed him as a free agent in 1928. After playing two seasons with the minor pro Detroit Olympics McInenly played for the Falcons in 1930-31. During the 1930's he was traded to several NHL teams, finally ending up with the Boston Bruins. He retired in 1941. In the NHL he played in 166 games, scoring 19 goals and 15 assists.