J. Grzyb
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| USA-chT Amateur | ??/??/1990 | 258 |  United States |
Most Played Openings as White
| ECO | Opening | Games |
Most Played Openings as Black
| ECO | Opening | Games |
| D01 | Richter-Veresov attack | 1 games |
| Name: | J. Grzyb |
| Federation: |  |
| Years: | 1990 - 1990 |
| Total Games: | 1 |
| Wins: | 1 (100 %) |
| Draws: | 0 (0 %) |
| Losses: | 0 (0 %) |
| Score: | 100 % |
Games played by J. Grzyb
| White | ELO W | Black | ELO B | Result | Moves | ECO | Date | Tournament | View |
| Marshall, R | Grzyb, J | 0-1  |
25 | D01 | 1990 | USA-chT Amateur |
|