KM. Bergsma
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| NED-ch22 | ??/??/1965 | 0 | Netherlands |
| Hoogovens-B | ??/??/1964 | 0 | Netherlands |
| NED-ch21 | ??/??/1963 | 0 | Netherlands |
| ENG-NED m | 11/23/1963 | 0 | United Kingdom |
Most Played Openings as White
| ECO | Opening | Games |
| B17 | Caro-Kann, Steinitz variation | 2 games |
| B08 | Pirc, classical (two knights) system | 2 games |
| B77 | Sicilian, dragon, Yugoslav attack, 9.Bc4 | 1 games |
| C76 | Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B45 | Sicilian, Taimanov variation | 2 games |
| B24 | Sicilian, closed | 1 games |
| E38 | Nimzo-Indian, classical, 4...c5 | 1 games |
| E11 | Bogo-Indian defence | 1 games |


Netherlands
United Kingdom