| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Portisch vs R T Cardoso |
| ½-½ | 74 |
1956 |
Moscow | E30 Nimzo-Indian, Leningrad |
| 2. Fischer vs R T Cardoso |
 | 1-0 | 32 |
1957 |
Match | A04 Reti Opening |
| 3. R T Cardoso vs Fischer |
 | ½-½ | 56 |
1957 |
New York m | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 4. Fischer vs R T Cardoso |
 | ½-½ | 46 |
1957 |
New York m | B90 Sicilian, Najdorf |
| 5. R T Cardoso vs Fischer |
 | 0-1 | 36 |
1957 |
New York m | B55 Sicilian, Prins Variation, Venice Attack |
| 6. R T Cardoso vs Lombardy |
| 0-1 | 67 |
1957 |
Wch U20 | B92 Sicilian, Najdorf, Opocensky Variation |
| 7. Fischer vs R T Cardoso |
 | 1-0 | 46 |
1957 |
New York m | B90 Sicilian, Najdorf |
| 8. R T Cardoso vs Fischer |
 | 1-0 | 40 |
1957 |
New York m | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 9. Fischer vs R T Cardoso |
 | 1-0 | 31 |
1957 |
New York m | B90 Sicilian, Najdorf |
| 10. R T Cardoso vs Fischer |
 | 0-1 | 52 |
1957 |
New York m | B98 Sicilian, Najdorf |
| 11. Bahgat vs R T Cardoso |
| 0-1 | 56 |
1957 |
Toronto-jr | C31 King's Gambit Declined, Falkbeer Counter Gambit |
| 12. Pilnik vs R T Cardoso |
| ½-½ | 41 |
1958 |
13th olm qual. group 3 | B06 Robatsch |
| 13. R Sanguineti vs R T Cardoso |
| ½-½ | 69 |
1958 |
Portoroz izt | C97 Ruy Lopez, Closed, Chigorin |
| 14. R T Cardoso vs G Fuster |
| 1-0 | 41 |
1958 |
Portoroz izt | D22 Queen's Gambit Accepted |
| 15. Y Safvat vs R T Cardoso |
| 0-1 | 43 |
1958 |
13th olm final C | A10 English |
| 16. Fischer vs R T Cardoso |
 | 1-0 | 62 |
1958 |
Bad Portoroz izt | B10 Caro-Kann |
| 17. B P Reilly vs R T Cardoso |
| 0-1 | 47 |
1958 |
13th olm final C | D12 Queen's Gambit Declined Slav |
| 18. B De Greiff vs R T Cardoso |
 | 0-1 | 31 |
1958 |
Portoroz izt | B93 Sicilian, Najdorf, 6.f4 |
| 19. Pachman vs R T Cardoso |
| 1-0 | 41 |
1958 |
Izt | D38 Queen's Gambit Declined, Ragozin Variation |
| 20. W Fairhurst vs R T Cardoso |
 | 0-1 | 39 |
1958 |
13th olm final C | D53 Queen's Gambit Declined |
| 21. R T Cardoso vs Szabo |
| 0-1 | 42 |
1958 |
13th olm qual. group 3 | B27 Sicilian |
| 22. R T Cardoso vs Larsen |
| ½-½ | 54 |
1958 |
Portoroz izt | B39 Sicilian, Accelerated Fianchetto, Breyer Variation |
| 23. O Neikirch vs R T Cardoso |
| 1-0 | 46 |
1958 |
Portoroz izt | E91 King's Indian |
| 24. R T Cardoso vs K Lagha |
| 1-0 | 29 |
1958 |
13th olm final C | C99 Ruy Lopez, Closed, Chigorin, 12...cd |
| 25. R T Cardoso vs A Aggos |
| 1-0 | 30 |
1958 |
13th olm final C | D55 Queen's Gambit Declined |