He played junior hockey with the St. Michael's Majors and the Copper Cliff Redmen. McReavy played for the Redmen when they lost the 1936-37 Memorial Cup Final. In 1937-38 McReavy played for the Sudbury Wolves who represented Canada at the 1938 World Championship. After playing with the Boston Bruins and their farm teams for three years (1938-41) McReavy was sold to the Detroit Red Wings in the 1941-42 NHL season. After the war, McReavy was sent to the St. Louis Flyers of the American Hockey League by the Red Wings. He stayed there for only two seasons (1945-46 & 1946-47). He retired in 1952.