Alejandro Esteban Marquez
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Cali op | 10/15/2005 | 1916 | Colombia |
| Pan American-ch U12 | 07/23/2004 | 182 | Colombia |
Most Played Openings as White
| ECO | Opening | Games |
| C45 | Scotch game | 1 games |
| B96 | Sicilian, Najdorf, 7.f4 | 1 games |
| E65 | King's Indian, fianchetto, Yugoslav, 7.O-O | 1 games |
| B41 | Sicilian, Kan variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B07 | Pirc defence | 4 games |
| B08 | Pirc, classical (two knights) system | 1 games |


Colombia