| ECO | Opening | Games |
| C01 | French, exchange variation | 1 games |
| B18 | Caro-Kann, classical variation | 1 games |
| B08 | Pirc, classical (two knights) system | 1 games |
| B42 | Sicilian, Kan, 5.Bd3 | 1 games |
| ECO | Opening | Games |
| A04 | Reti opening | 1 games |
| E92 | King's Indian, classical variation | 1 games |
| B33 | Sicilian defence | 1 games |
| E61 | King's Indian defence, 3.Nc3 | 1 games |
| White | ELO W | Black | ELO B | Result | Moves | ECO | Date | Tournament | View |
| Miranda, M | 2280 | Costa, H | ½-½ | E61 | 1991 | Rio de Janeiro FEXERJ op |  |
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| Silva, J | Costa, H | 1-0 | B33 | 1991 | Rio de Janeiro FEXERJ op |  |
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| Segal, A | 2355 | Costa, H | ½-½ | A04 | 1991 | Rio de Janeiro FEXERJ op | |
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| Teixeira, R | 2370 | Costa, H | 1-0 | E92 | 1991 | Rio de Janeiro FEXERJ op | |
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| Costa, H | Carvalho, J | 0-1 | C01 | 1991 | Rio de Janeiro FEXERJ op | |
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| Costa, H | Bortoloso, M | 1-0 | B18 | 1991 | Rio de Janeiro FEXERJ op | |
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| Costa, H | Dos Santos, A | ½-½ | B08 | 1991 | Rio de Janeiro FEXERJ op | |
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| Costa, H | 1966 | Ferreira, K | 2184 | 0-1 | C27 | 2006 | Rio de Janeiro-ch Absoluto | |
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| Rios Filho, H | 2267 | Costa, H | 1966 | 0-1 | A00 | 2006 | Rio de Janeiro-ch Absoluto | |
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| Costa, H | 1966 | D'Oliveira, M | 2137 | 0-1 | C11 | 2006 | Rio de Janeiro-ch Absoluto | |
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| Mano, L | 1782 | Costa, H | 1966 | 0-1 | B34 | 2006 | Rio de Janeiro-ch Absoluto | |
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| Machado, W | 1841 | Costa, H | 1966 | ½-½ | B23 | 2006 | Rio de Janeiro-ch Absoluto | |
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| Costa, H | 1966 | Chaves, J | 2013 | 1-0 | C30 | 2006 | Rio de Janeiro-ch Absoluto | |
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| Costa, H | 1966 | Chauca, J | 2208 | 1-0 | B42 | 2006 | Rio de Janeiro-ch Absoluto | |