Jan Van Kollenburg

1982

Holland Nationals - NBBF, LightWeight, 3rd

1983

Holland Iron Man - NBBF, LightWeight, 2nd
Holland Nationals - NBBF, LightWeight, 3rd

1984

Holland Nationals - NBBF, LightWeight, 5th

1985

Holland Nationals - NBBF, LightWeight, 1st
World Amateur Championships - IFBB, LightWeight, 15th

1986

Holland Grand Prix - NBBF, MiddleWeight, 3rd

1989

Corpus 2000 - NBBF, 5th