Joao Guerra Costa
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| GXP Serie-B 2nd | ??/??/2004 | 1975 | Portugal |
| Porto GXP 2nd | ??/??/2004 | 1956 | Portugal |
| POR-chT | 08/02/2004 | 2232 | Portugal |
| Santxenxo op | 06/??/2004 | 1559 | Spain |
Most Played Openings as White
| ECO | Opening | Games |
| B33 | Sicilian defence | 4 games |
| C00 | French defence | 2 games |
| B87 | Sicilian, Sozin with ...a6 and ...b5 | 1 games |
| B22 | Sicilian, Alapin's variation (2.c3) | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| A88 | Dutch, Leningrad, main variation with c6 | 3 games |
| B80 | Sicilian, Scheveningen variation | 3 games |
| A48 | King's Indian, East Indian defence | 2 games |
| A81 | Dutch defence | 2 games |


Portugal
Spain