Gustavo Montalvan
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| La Habana ol (Men) fin-D | 10/25/1966 | 0 | Cuba |
| La Habana ol (Men) prel | 10/25/1966 | 0 | Cuba |
Most Played Openings as White
| ECO | Opening | Games |
| A85 | Dutch with c4 & Nc3 | 1 games |
| A30 | English, symmetrical variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |


Cuba