Doug Koch
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| US op | 08/06/2005 | 1189 | United States |
Most Played Openings as White
| ECO | Opening | Games |
| C80 | Ruy Lopez, open (Tarrasch) defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |


United States