FIDE ID:
Mark J Geist
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Chicago op 12th | 05/23/2003 | 1794 |  United States |
| Chicago op 12th | 05/23/2003 | 1794 | United States |
| World op 29th | 06/30/2001 | 1810 | United States |
| Washington Eastern op | 12/27/2000 | 1818 | United States |
Most Played Openings as White
| ECO | Opening | Games |
| B41 | Sicilian, Kan variation | 1 games |
| B20 | Sicilian defence | 1 games |
| B74 | Sicilian, dragon, classical, 9.Nb3 | 1 games |
| B70 | Sicilian, dragon variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| A90 | Dutch defence | 4 games |
| C18 | French, Winawer, advance variation | 2 games |
| A85 | Dutch with c4 & Nc3 | 1 games |
| C06 | French, Tarrasch, closed variation, main line | 1 games |
