Dutch National Championships - Heerenveen & Drachten & Leeuwarden - March 16 - April 14 1975
Preliminaries (incomplete)
| 1975-03-16 | 71kg | Jan Duits | Adri Frankes | PTS |
| 1975-03-16 | 71kg | Adrie Huusen | Theo Meijer | RSC 3 |
| 1975-03-16 | 71kg | Ron Wijngaard | Rene Rutten | PTS |
| 1975-03-16 | 71kg | Wiekkie Akkerman | Guus Scholtens | PTS |
| 1975-03-16 | 71kg | Adrie Magielse | Henk Bruins | RSC 2 |
Quarter-Finals (incomplete)
| 1975-03-16 | 75kg | Peter Remmers | Evert Gorber | PTS |
| 1975-03-16 | 75kg | Joop Scheen | Michel van Halderen | PTS |
| 1975-03-16 | 75kg | Kobus Schmidt | Rinco Jullings | RSC 2 |
| 1975-03-16 | 81kg | Marius Lubbers | Leo Terlinde | PTS |
| 1975-03-16 | 81kg | Dick Westhof | Bill Echter | PTS |
| 1975-03-16 | 81kg | Johan Tabben | Leo Fassani | PTS |
| 1975-03-16 | 81kg | Cor Sarton | Fred Buurman | PTS |
| 1975-03-24 | 63,5kg | Edgar Jordan | Harry Rodges | PTS |
| 1975-03-24 | 63,5kg | Hans van Brienen | Paul Frankes | PTS |
| 1975-03-24 | 63,5kg | Henk Baars | Arnold Potters | AB 1 |
Semi-Finals (incomplete)
| 1975-03-24 | 60kg | Bertus Brouwer | Tonny Krijgsman | PTS |
| 1975-03-24 | 60kg | Dolf Krijgsman | Sjeng Verstappen II | PTS |
| 1975-03-24 | 63,5kg | Hans van der Vleuten | Hendrik Muis | RSC 2 |
| 1975-03-24 | 67kg | Guus Schulz | Donald Jansen | PTS |
| 1975-03-24 | 67kg | Nico Jeurissen | Tonny Waterman | PTS |
| 1975-03-24 | 71kg | Adrie Huusen | Jan Duits | RSC 3 |
| 1975-03-24 | 75kg | Kobus Schmidt | Joop Scheen | PTS |
| 1975-03-24 | 81kg | John Smit | Dick Westhof | PTS |
| 1975-03-24 | +81kg | Piet Holtkamp | Jan Sauer | PTS |
| 1975-03-24 | +81kg | Ben Tiben | Herman Bos | RSC 3 |
Finals
| 1975-04-14 | 54kg | Koos Verstappen | Leo Helmerich | PTS |
| 1975-04-14 | 57kg | Jan Huppen | Christ Biemans | KO 2 |
| 1975-04-14 | 60kg | Bertus Brouwer | Dolf Krijgsman | AB 3 |
| 1975-04-14 | 63,5kg | Tonnie van Eck | Hans van der Vleuten | AB 3 |
| 1975-04-14 | 67kg | Guus Schulz | Nico Jeurissen | PTS |
| 1975-04-14 | 71kg | Adrie Huusen | Ron Wijngaard | RSC 1 |
| 1975-04-14 | 75kg | Kobus Schmidt | Peter Remmers | PTS |
| 1975-04-14 | 81kg | Johan Tabben | John Smit | PTS |
| 1975-04-14 | +81kg | Piet Holtkamp | Ben Tiben | RSC 1 |