Games played by Roberto Grau
| White | ELO W | Black | ELO B | Result | Moves | ECO | Date | Tournament | View |
| Montalban, J | Grau, R | 0-1  |
39 | D55 | 1922 | Carrasco |
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| Grau, R | Anaya Oger, H | 1-0 |
47 | C50 | 1922 | Carrasco |
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| Carlos, H | Grau, R | 0-1 |
33 | C14 | 1922 | Carrasco |
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| Grau, R | De Souza Mendes, J | 1-0 |
47 | E12 | 1922 | Carrasco |
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| Reca, D | Grau, R | 0-1 |
17 | C30 | 1922 | Carrasco |
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| Grau, R | Ellerman, A | 1-0 |
20 | D11 | 1922 | Carrasco |
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| Villegas, B | Grau, R | 1-0 |
36 | D64 | 1922 | Carrasco |
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| Grau, R | Lynch, J | ½-½ |
25 | C14 | 1922 | Carrasco |
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| Rivas Costa, S | Grau, R | 0-1 |
47 | E12 | 1922 | Carrasco |
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| Grau, R | Illa, R | ½-½ |
17 | D12 | 1921 | Carrasco |
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| Werneck de Castro, R | Grau, R | 0-1 |
39 | E16 | 1921 | Carrasco |
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| Grau, R | Loedel, J | 1-0 |
25 | D40 | 1921 | Carrasco |
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| De Freitas, J | Grau, R | 0-1 |
41 | C01 | 1921 | Carrasco |
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