O. Plettenburg
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| NRW-Liga I 9596 | ??/??/1995 | 972 |  Germany |
| Porz op 24th | ??/??/1990 | 404 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| C96 | Ruy Lopez, closed (8...Na5) | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B22 | Sicilian, Alapin's variation (2.c3) | 1 games |
