1991 Holland Iron Man - NBBF
| Overall Winner Ruud Van Gent | |
HeavyWeight | |
| 1 | Ruud Van Gent |
| 2 | Henk Hoeppe |
| 3 | Harry DeJonge |
| 4 | Martin Wijsen |
| 5 | Adrie Mosterd |
Light-HeavyWeight | |
| 1 | Marlon Mijnals |
| 2 | Earl Madoera |
| 3 | Mounir Rumai |
| 4 | Jose Ostiana |
| 5 | Emilio Scoop |
MiddleWeight | |
| 1 | Marco Rutten |
| 2 | Stanley Raiman |
| 3 | Eddie Godec |
| 4 | Ab Assenaar |
| 5 | Bram Brammerloo |
LightWeight | |
| 1 | Boey Huyerjans |
| 2 | Rob Van Beurden |
| 3 | Alex Salutera |
| 4 | John Olstey |
| 5 | Jurman Olstey |
Junior | |
| 1 | Ekrem Ertekin |
| 2 | Brian Doorzon |
| 3 | Sicco Heersink |