| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Petrosian vs Spassky |
 | ½-½ | 15 |
1953 |
Bucharest (04) | D13 Queen's Gambit Declined Slav, Exchange Variation |
| 2. Spassky vs Petrosian |
 | ½-½ | 42 |
1955 |
USSR Championship | B95 Sicilian, Najdorf, 6...e6 |
| 3. Spassky vs Petrosian |
| ½-½ | 24 |
1955 |
Gothenburg Interzonal | B11 Caro-Kann, Two Knights, 3...Bg4 |
| 4. Spassky vs Petrosian |
| ½-½ | 33 |
1956 |
Amsterdam | E46 Nimzo-Indian |
| 5. Petrosian vs Spassky |
 | ½-½ | 71 |
1956 |
Amsterdam | A15 English |
| 6. Petrosian vs Spassky |
 | ½-½ | 42 |
1957 |
USSR Championship | A08 King's Indian Attack |
| 7. Spassky vs Petrosian |
 | ½-½ | 20 |
1958 |
USSR Championship | C53 Giuoco Piano |
| 8. Spassky vs Petrosian |
| ½-½ | 25 |
1959 |
USSR Championship | D37 Queen's Gambit Declined |
| 9. Petrosian vs Spassky |
 | 1-0 | 35 |
1960 |
USSR Championship | E94 King's Indian, Orthodox |
| 10. Petrosian vs Spassky |
| ½-½ | 17 |
1961 |
USSR Championship 1961a | D25 Queen's Gambit Accepted |
| 11. Petrosian vs Spassky |
 | ½-½ | 15 |
1966 |
Petrosian-Spassky World Championship Match | D40 Queen's Gambit Declined, Semi-Tarrasch |
| 12. Spassky vs Petrosian |
 | ½-½ | 26 |
1966 |
Petrosian-Spassky World Championship Match | B14 Caro-Kann, Panov-Botvinnik Attack |
| 13. Spassky vs Petrosian |
 | ½-½ | 29 |
1966 |
Petrosian-Spassky World Championship Match | B30 Sicilian |
| 14. Spassky vs Petrosian |
 | ½-½ | 79 |
1966 |
Petrosian-Spassky World Championship Match | B14 Caro-Kann, Panov-Botvinnik Attack |
| 15. Petrosian vs Spassky |
 | ½-½ | 57 |
1966 |
Petrosian-Spassky World Championship Match | A05 Reti Opening |
| 16. Spassky vs Petrosian |
 | 1-0 | 31 |
1966 |
Petrosian-Spassky World Championship Match | C11 French |
| 17. Spassky vs Petrosian |
 | ½-½ | 37 |
1966 |
Petrosian-Spassky World Championship Match | B19 Caro-Kann, Classical |
| 18. Spassky vs Petrosian |
 | ½-½ | 26 |
1966 |
Petrosian-Spassky World Championship Match | C10 French |
| 19. Spassky vs Petrosian |
 | 1-0 | 68 |
1966 |
Petrosian-Spassky World Championship Match | C11 French |
| 20. Petrosian vs Spassky |
 | ½-½ | 29 |
1966 |
Second Piatigorsky Cup | D58 Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst |
| 21. Petrosian vs Spassky |
 | ½-½ | 41 |
1966 |
Petrosian-Spassky World Championship Match | A14 English |
| 22. Petrosian vs Spassky |
 | ½-½ | 23 |
1966 |
Petrosian-Spassky World Championship Match | A33 English, Symmetrical |
| 23. Petrosian vs Spassky |
 | ½-½ | 49 |
1966 |
Petrosian-Spassky World Championship Match | B06 Robatsch |
| 24. Spassky vs Petrosian |
 | ½-½ | 43 |
1966 |
Petrosian-Spassky World Championship Match | B14 Caro-Kann, Panov-Botvinnik Attack |
| 25. Spassky vs Petrosian |
 | 1-0 | 91 |
1966 |
Petrosian-Spassky World Championship Match | B19 Caro-Kann, Classical |