Matsumaru was born in Bunkyo, Tokyo on February 28, 1909. He played for Keio BRB which was consisted of his alma mater Keio University players and graduates. At Keio BRB, he won 1932 and 1936 Emperor's Cup. He also played for Tokyo OB Club and won 1933 Emperor's Cup with Shigemaru Takenokoshi and Shiro Teshima.