Career
He plays as an outfielder for the Hanshin Tigers of the Central League. He made public that he is a Zainichi Korean in 2004 (). Hiyama graduated from Heian High School and entered Toyo University.
He played in the Tohto University Baseball League, and got 83 hits (13 home runs) in 261 at bats (batting average: 318), and batted in 45 runs.
He was drafted by the Hanshin Tigers in 1991, and through 2011 season, his statistics are 1240 hits (including 159 home runs) in 4754 at bats (average: 261), and 688 RBIs (ja:桧山進次郎).