Koos Hemminga

1982

Holland Grand Prix - NBBF, HeavyWeight, 2nd
Holland Iron Man - NBBF, Tall, 1st
Holland Iron Man - NBBF, Overall Winner
Holland Nationals - NBBF, HeavyWeight, 1st
World Amateur Championships - IFBB, HeavyWeight, 9th

1983

Holland Nationals - NBBF, HeavyWeight, 2nd

1985

Holland Grand Prix - NBBF, HeavyWeight, 2nd
Holland Nationals - NBBF, HeavyWeight, 1st
World Amateur Championships - IFBB, HeavyWeight, Did not place

1986

Holland Grand Prix - NBBF, HeavyWeight, 3rd
World Amateur Championships - IFBB, HeavyWeight, 3rd

1988

Night of Champions - IFBB, 12th

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