| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. O Rocas vs A Gama |
| 1-0 | 61 | 1933 | Brazilian Championship Match | B72 Sicilian, Dragon |
| 2. A Gama vs O Rocas |
| ½-½ | 64 | 1933 | Brazilian Championship Match | A47 Queen's Indian |
| 3. O Rocas vs A Gama |
| ½-½ | 36 | 1933 | Brazilian Championship Match | B60 Sicilian, Richter-Rauzer |
| 4. A Gama vs O Rocas |
| 0-1 | 56 | 1933 | Brazilian Championship Match | A00 Uncommon Opening |
| 5. O Rocas vs J de Souza Mendes |
| ½-½ | 38 | 1934 | Brazilian Championship Match | B02 Alekhine's Defense |
| 6. J de Souza Mendes vs O Rocas |
| ½-½ | 36 | 1934 | Brazilian Championship Match | E16 Queen's Indian |
| 7. O Rocas vs J de Souza Mendes |
| 1-0 | 34 | 1934 | Brazilian Championship Match | B09 Pirc, Austrian Attack |
| 8. J de Souza Mendes vs O Rocas |
| ½-½ | 65 | 1934 | Brazilian Championship Match | E16 Queen's Indian |
| 9. J de Souza Mendes vs O Rocas |
| 1-0 | 36 | 1934 | Brazilian Championship Match | E22 Nimzo-Indian, Spielmann Variation |
| 10. O Rocas vs J de Souza Mendes |
| ½-½ | 30 | 1934 | Brazilian Championship Match | B40 Sicilian |
| 11. J de Souza Mendes vs O Rocas |
| 1-0 | 34 | 1934 | Brazilian Championship Match | D12 Queen's Gambit Declined Slav |
| 12. O Rocas vs J de Souza Mendes |
| 1-0 | 33 | 1934 | Brazilian Championship Match | C68 Ruy Lopez, Exchange |
| 13. O Rocas vs J de Souza Mendes |
| 0-1 | 46 | 1934 | Brazilian Championship Match | E60 King's Indian Defense |
| 14. J de Souza Mendes vs O Rocas |
| 0-1 | 26 | 1934 | Brazilian Championship Match | A50 Queen's Pawn Game |
| 15. J Bolbochan vs O Rocas |
| 1-0 | 46 | 1934 | South American Championship (1934/35)+ | E34 Nimzo-Indian, Classical, Noa Variation |
| 16. O Rocas vs T P Accioly Borges |
| 1-0 | 26 | 1937 | DF IC | B02 Alekhine's Defense |
| 17. Alekhine vs O Rocas |
 | 0-1 | 24 | 1939 | Alekhine Clock simul, 12b Rio de Janeiro | B13 Caro-Kann, Exchange |
| 18. O Rocas vs Eliskases |
| 0-1 | 51 | 1943 | Rio de Janeiro free | A02 Bird's Opening |
| 19. Eliskases vs O Rocas |
| ½-½ | 26 | 1943 | Rio de Janeiro free | E38 Nimzo-Indian, Classical, 4...c5 |
| 20. Eliskases vs O Rocas |
| ½-½ | 53 | 1943 | Rio de Janeiro free | A47 Queen's Indian |
| 21. O Rocas vs Eliskases |
| ½-½ | 47 | 1943 | Rio de Janeiro free | C68 Ruy Lopez, Exchange |
| 22. O Rocas vs F de Carvalho |
| 1-0 | 41 | 1945 | Brazilian Championship | C68 Ruy Lopez, Exchange |
| 23. P Duarte Filho vs O Rocas |
| 0-1 | 28 | 1945 | Brazilian Championship | B11 Caro-Kann, Two Knights, 3...Bg4 |
| 24. O Rocas vs Najdorf |
| 0-1 | 31 | 1946 | Mar del Plata | A03 Bird's Opening |
| 25. A Maccioni vs O Rocas |
| 0-1 | 35 | 1946 | Mar del Plata | A44 Old Benoni Defense |
Kibitzing
