Joao Demathe
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| BRA-ch regional op | ??/??/2000 | 235 | Brazil |
| Florianopolis op | ??/??/1999 | 118 | Brazil |
Most Played Openings as White
| ECO | Opening | Games |
| B20 | Sicilian defence | 1 games |
| E60 | King's Indian defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| D03 | Torre attack (Tartakower variation) | 2 games |
| D30 | Queen's gambit declined | 1 games |
| A30 | English, symmetrical variation | 1 games |


Brazil