Gladu's baseball career began in 1932 at Binghamton, New York, and extended over more than 20 years as a player and manager in five countries: Canada, the United States, Mexico, Cuba, and England. Gladu played in London in the late 1930s for a team based at West Ham Stadium.[2] As player-manager for West Ham, he took the London circuit batting title with a .565 average in 1937, and led the team to two consecutive top-two finishes, as well as a 5-3 defeat over the touring 1936 United States Olympic baseball team.[3]
Gladu also played professional hockey in the off-season as a defenceman in the Quebec Hockey League. After his playing career, Gladu worked as a scout for the Milwaukee Braves. Pitcher Claude Raymond was one of the first players signed by Gladu.
^McKelvey, G. Richard (2006). Mexican Raiders in the Major Leagues: The Pasquel Brothers Vs. Organized Baseball, 1946. McFarland. p. 166. ISBN9780786425631.
^"Roland Gladu". baseballhalloffame.ca. Retrieved December 19, 2021.