| Name: | Joao C Costa |
| Federation: |  |
| Years: | 1994 - 1997 |
| Total Games: | 5 |
| Wins: | 1 (20 %) |
| Draws: | 0 (0 %) |
| Losses: | 4 (80 %) |
| Score: | 20 % |
| Tournament | Date | Elo Avg. | Country |
| Copa Itau Mercosul | 10/19/1997 | 942 |  Brazil |
| BRA-ch sf | ??/??/1994 | 788 | Brazil |
| ECO | Opening | Games |
| B70 | Sicilian, dragon variation | 1 games |
| C01 | French, exchange variation | 1 games |
| B41 | Sicilian, Kan variation | 1 games |
| B21 | Sicilian, Grand Prix attack | 1 games |
| ECO | Opening | Games |
| D86 | Gruenfeld, exchange, classical variation | 1 games |
| White | ELO W | Black | ELO B | Result | Moves | ECO | Date | Tournament | View |
| Costa, J | Santos, M | 0-1  |
53 | C01 | 1997 | Copa Itau Mercosul |
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| Costa, J | Pelikian, J | 2385 | 0-1 |
40 | B70 | 1997 | Copa Itau Mercosul |
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| Costa, J | Ruppel, L | 2225 | 1-0 |
47 | B41 | 1994 | BRA-ch sf |
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| Costa, J | Rotta, C | 0-1 |
37 | B21 | 1994 | BRA-ch sf |
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| Leitao, R | 2315 | Costa, J | 1-0 |
38 | D86 | 1994 | BRA-ch sf |
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