Koch
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Ruhrgebiet VK 9899 playoff | ??/??/1999 | 75 | Germany |
| Ruhrgebiet VK3 9899 | ??/??/1998 | 339 | Germany |
| JBLN Ost 9495 | ??/??/1994 | 450 | Germany |
| Saarland-chA | ??/??/1993 | 0 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| A02 | Bird's opening | 3 games |
| A03 | Bird's opening | 2 games |
| B33 | Sicilian defence | 1 games |
| B45 | Sicilian, Taimanov variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| E51 | Nimzo-Indian, 4.e3 e8g8, 5.Nf3 d7d5 | 1 games |
| A21 | English opening | 1 games |
| A88 | Dutch, Leningrad, main variation with c6 | 1 games |
| E08 | Catalan, closed, 7.Qc2 | 1 games |


Germany