Yasushi Koyama

 小山裕史

1982 - Mr Japan - JBBF - - Winner
1983 - Asian Amateur Championships - IFBB - Light-HeavyWeight - 1st
1983 - World Amateur Championships - IFBB - Light-HeavyWeight - 5th
1984 - Asian Amateur Championships - IFBB - Light-HeavyWeight - 1st
1984 - Mr Japan - JBBF - - Winner
1984 - World Amateur Championships - IFBB - MiddleWeight - 5th
1985 - World Games - MiddleWeight - 8th
1989 - Asian Amateur Championships - IFBB - Light-HeavyWeight - 1st