| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. T Efremoff vs R Cardoso |
| ½-½ | 43 | 1960 | Sao Paulo Zonal (Women) | A08 King's Indian Attack |
| 2. R Cardoso vs N de Oliveira |
| 1-0 | 35 | 1960 | Sao Paulo Zonal (Women) | B50 Sicilian |
| 3. B Carrasco Araya vs R Cardoso |
| ½-½ | 38 | 1960 | Sao Paulo Zonal (Women) | D47 Queen's Gambit Declined Semi-Slav |
| 4. M Guerra vs R Cardoso |
| 1-0 | 40 | 1960 | Sao Paulo Zonal (Women) | C84 Ruy Lopez, Closed |
| 5. D Rubio vs R Cardoso |
| 1-0 | 72 | 1960 | Sao Paulo Zonal (Women) | C84 Ruy Lopez, Closed |
| 6. R Cardoso vs A Karguer |
| ½-½ | 50 | 1960 | Sao Paulo Zonal (Women) | E78 King's Indian, Four Pawns Attack, with Be2 and Nf3 |
| 7. R Cardoso vs D Trepat de Navarro |
| 0-1 | 53 | 1960 | Sao Paulo Zonal (Women) | A15 English |
| 8. R Cardoso vs A Perez |
| 1-0 | 37 | 1966 | Buenos Aires Zonal (Women) | C77 Ruy Lopez |
| 9. D Trepat de Navarro vs R Cardoso |
| 0-1 | 56 | 1966 | Buenos Aires Zonal (Women) | E38 Nimzo-Indian, Classical, 4...c5 |
| 10. R Cardoso vs C Baudot de Moschini |
| 1-0 | 30 | 1966 | Buenos Aires Zonal (Women) | C77 Ruy Lopez |
| 11. A Karguer vs R Cardoso |
| 0-1 | 45 | 1966 | Buenos Aires Zonal (Women) | D02 Queen's Pawn Game |
| 12. R Cardoso vs B Carrasco Araya |
| 0-1 | 17 | 1966 | Buenos Aires Zonal (Women) | C79 Ruy Lopez, Steinitz Defense Deferred |
| 13. S Paredes vs R Cardoso |
| 0-1 | 43 | 1966 | Buenos Aires Zonal (Women) | C44 King's Pawn Game |
| 14. R Cardoso vs J Bellin |
| ½-½ | 38 | 1969 | Belgrade (Women) | B42 Sicilian, Kan |
| 15. N Alexandria vs R Cardoso |
| 1-0 | 46 | 1969 | Belgrade (Women) | C77 Ruy Lopez |
| 16. J Hardinge vs R Cardoso |
 | 1-0 | 43 | 1970 | Hastings Christmas Congress | C26 Vienna |
| 17. R Cardoso vs N Alexandria |
| 0-1 | 49 | 1970 | Hoogovens (Women) | B60 Sicilian, Richter-Rauzer |
| 18. R Cardoso vs M Teodorescu |
| 0-1 | 38 | 1970 | Hoogovens (Women) | B28 Sicilian, O'Kelly Variation |
| 19. J Berry vs R Cardoso |
| 1-0 | 32 | 1970 | Canadian Open | C84 Ruy Lopez, Closed |
| 20. R Cardoso vs Z Veroci |
| 0-1 | 37 | 1970 | Sofia (Women) | A48 King's Indian |
| 21. E Trojanska vs R Cardoso |
| 0-1 | 45 | 1970 | Sofia (Women)+ | A07 King's Indian Attack |
| 22. R Cardoso vs V Asenova |
| ½-½ | 56 | 1970 | Sofia (Women) | B41 Sicilian, Kan |
| 23. N Konopleva vs R Cardoso |
| ½-½ | 42 | 1970 | Sofia (Women) | C77 Ruy Lopez |
| 24. R Cardoso vs K Eretova |
| ½-½ | 42 | 1970 | Sofia (Women) | C75 Ruy Lopez, Modern Steinitz Defense |
| 25. G Markovic vs R Cardoso |
| ½-½ | 34 | 1970 | Sofia (Women) | A07 King's Indian Attack |
Kibitzing
