| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Kaplan vs Gheorghiu |
| 0-1 | 29 |
1967 |
Hastings | B61 Sicilian, Richter-Rauzer, Larsen Variation, 7.Qd2 |
| 2. Kaplan vs S Tatai |
 | 1-0 | 24 |
1968 |
Malaga | B93 Sicilian, Najdorf, 6.f4 |
| 3. Kaplan vs Zuckerman |
| 0-1 | 46 |
1968 |
Malaga | B93 Sicilian, Najdorf, 6.f4 |
| 4. Kaplan vs Suetin |
| ½-½ | 40 |
1968 |
Hastings (England) | B48 Sicilian, Taimanov Variation |
| 5. Kaplan vs R Byrne |
| ½-½ | 45 |
1969 |
San Juan | B92 Sicilian, Najdorf, Opocensky Variation |
| 6. Kaplan vs Larry Evans |
 | 1-0 | 41 |
1972 |
San Antonio | B42 Sicilian, Kan |
| 7. Kaplan vs Bobotsov |
| ½-½ | 31 |
1972 |
Skopje ol (Men) prel | B42 Sicilian, Kan |
| 8. Kaplan vs Saidy |
| ½-½ | 69 |
1972 |
San Antonio | B92 Sicilian, Najdorf, Opocensky Variation |
| 9. Kaplan vs Portisch |
| 0-1 | 55 |
1972 |
San Antonio | B84 Sicilian, Scheveningen |
| 10. Kaplan vs Petrosian |
| ½-½ | 23 |
1972 |
San | B63 Sicilian, Richter-Rauzer Attack |
| 11. Kaplan vs Browne |
| 0-1 | 32 |
1973 |
Madrid (Spain) | B99 Sicilian, Najdorf, 7...Be7 Main line |
| 12. Kaplan vs Karpov |
 | 0-1 | 52 |
1973 |
11, Madrid | B46 Sicilian, Taimanov Variation |
| 13. Kaplan vs Ulf Andersson |
 | 0-1 | 69 |
1973 |
Madrid | B85 Sicilian, Scheveningen, Classical |
| 14. Kaplan vs J M Bellon Lopez |
| 1-0 | 50 |
1973 |
Madrid | B31 Sicilian, Rossolimo Variation |
| 15. Kaplan vs Portisch |
| ½-½ | 23 |
1973 |
Madrid | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 16. Kaplan vs Lombardy |
| 0-1 | 20 |
1974 |
Amsterdam (Netherlands) | B68 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 9...Be7 |
| 17. Kaplan vs Velimirovic |
| 0-1 | 72 |
1974 |
IBM | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 18. Kaplan vs Jansa |
| 0-1 | 35 |
1974 |
Amsterdam | B46 Sicilian, Taimanov Variation |
| 19. Kaplan vs Ivkov |
| ½-½ | 11 |
1974 |
Amsterdam | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 20. Kaplan vs V Tukmakov |
| ½-½ | 54 |
1974 |
IBM | B83 Sicilian |
| 21. Kaplan vs Shamkovich |
 | 1-0 | 39 |
1975 |
Cleveland (USA) | B63 Sicilian, Richter-Rauzer Attack |
| 22. Kaplan vs J Lechtynsky |
| ½-½ | 32 |
1975 |
Lublin | B92 Sicilian, Najdorf, Opocensky Variation |
| 23. Kaplan vs Tarjan |
| ½-½ | 24 |
1975 |
Cleveland (USA) | B77 Sicilian, Dragon, Yugoslav Attack |
| 24. Kaplan vs N Weinstein |
| ½-½ | 18 |
1977 |
open | B84 Sicilian, Scheveningen |
| 25. Kaplan vs Browne |
| ½-½ | 22 |
1977 |
Lone Pine (USA) | B92 Sicilian, Najdorf, Opocensky Variation |