Game |
| Result | Moves |
Year | Event/Locale | Opening |
1. Spassky vs Keres |
 | ½-½ | 28 | 1955 | USSR Championship | D38 Queen's Gambit Declined, Ragozin Variation |
2. Keres vs Spassky |
 | 1-0 | 30 | 1955 | Gothenburg Interzonal | E14 Queen's Indian |
3. Spassky vs Keres |
 | ½-½ | 29 | 1956 | Amsterdam Candidates | D28 Queen's Gambit Accepted, Classical |
4. Keres vs Spassky |
| ½-½ | 30 | 1956 | Amsterdam Candidates | C78 Ruy Lopez |
5. Spassky vs Keres |
 | 1-0 | 46 | 1957 | USSR Championship | E31 Nimzo-Indian, Leningrad, Main line |
6. Keres vs Spassky |
| ½-½ | 35 | 1959 | USSR Championship | A07 King's Indian Attack |
7. Spassky vs Keres |
 | ½-½ | 70 | 1961 | USSR Championship 1961b | C92 Ruy Lopez, Closed |
8. Keres vs Spassky |
| ½-½ | 17 | 1962 | Ch URS (team) | C87 Ruy Lopez |
9. Spassky vs Keres |
 | 0-1 | 33 | 1965 | Spassky - Keres Candidates Quarterfinal | E12 Queen's Indian |
10. Keres vs Spassky |
 | ½-½ | 62 | 1965 | Spassky - Keres Candidates Quarterfinal | C93 Ruy Lopez, Closed, Smyslov Defense |
11. Spassky vs Keres |
 | 1-0 | 50 | 1965 | Spassky - Keres Candidates Quarterfinal | E31 Nimzo-Indian, Leningrad, Main line |
12. Keres vs Spassky |
 | 0-1 | 39 | 1965 | Spassky - Keres Candidates Quarterfinal | C93 Ruy Lopez, Closed, Smyslov Defense |
13. Spassky vs Keres |
 | 1-0 | 44 | 1965 | Spassky - Keres Candidates Quarterfinal | C97 Ruy Lopez, Closed, Chigorin |
14. Keres vs Spassky |
| ½-½ | 29 | 1965 | Spassky - Keres Candidates Quarterfinal | A21 English |
15. Spassky vs Keres |
| ½-½ | 40 | 1965 | Spassky - Keres Candidates Quarterfinal | E12 Queen's Indian |
16. Keres vs Spassky |
 | 1-0 | 25 | 1965 | Spassky - Keres Candidates Quarterfinal | E43 Nimzo-Indian, Fischer Variation |
17. Spassky vs Keres |
 | ½-½ | 41 | 1965 | Spassky - Keres Candidates Quarterfinal | C80 Ruy Lopez, Open |
18. Keres vs Spassky |
 | 0-1 | 35 | 1965 | Spassky - Keres Candidates Quarterfinal | E77 King's Indian |
19. Keres vs Spassky |
| ½-½ | 56 | 1965 | Moskva SUtch | E97 King's Indian |
20. Keres vs Spassky |
| ½-½ | 23 | 1966 | URS-chT | E19 Queen's Indian, Old Main line, 9.Qxc3 |
21. Keres vs Spassky |
 | ½-½ | 40 | 1967 | Moscow | C16 French, Winawer |
22. Keres vs Spassky |
| ½-½ | 46 | 1967 | 10th Soviet Team-ch qual group 3 | E06 Catalan, Closed, 5.Nf3 |
23. Spassky vs Keres |
 | ½-½ | 26 | 1967 | Winnipeg | C78 Ruy Lopez |
24. Spassky vs Keres |
| ½-½ | 29 | 1973 | Tallinn | E12 Queen's Indian |
25. Keres vs Spassky |
| ½-½ | 31 | 1973 | FRG-ch International | C95 Ruy Lopez, Closed, Breyer |