| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Kavalek vs Jansa |
| 0-1 | 29 |
1959 |
Cerveny Kostelec | B02 Alekhine's Defense |
| 2. M Herink vs Jansa |
 | 0-1 | 37 |
1959 |
Cerveny Kostelec | A88 Dutch, Leningrad, Main Variation with c6 |
| 3. J Kozma vs Jansa |
| 0-1 | 41 |
1960 |
CSR-ch | E60 King's Indian Defense |
| 4. J Vesely vs Jansa |
 | 0-1 | 31 |
1960 |
CSR-ch | E93 King's Indian, Petrosian System |
| 5. Jansa vs A Zaitsev |
| 0-1 | 47 |
1961 |
Moscow | B17 Caro-Kann, Steinitz Variation |
| 6. Jansa vs D Ciric |
| 0-1 | 28 |
1961 |
Moscow | B86 Sicilian, Fischer-Sozin Attack |
| 7. Jansa vs Smyslov |
 | 0-1 | 35 |
1961 |
Oberhausen (EU/MM: SU-CSSR) | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 8. S Garcia Martinez vs Jansa |
| 0-1 | 97 |
1961 |
Moscow | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 9. Jansa vs M Crues Albareda |
| 0-1 | 34 |
1961 |
EU/MM: SPA-CSSR | C98 Ruy Lopez, Closed, Chigorin |
| 10. A Lein vs Jansa |
| 0-1 | 30 |
1961 |
Moscow | B46 Sicilian, Taimanov Variation |
| 11. J Marsalek vs Jansa |
| 0-1 | 48 |
1962 |
Marianske Lazne | B23 Sicilian, Closed |
| 12. Jansa vs J Marsalek |
| 0-1 | 76 |
1962 |
CSR-ch | C76 Ruy Lopez, Modern Steinitz Defense, Fianchetto Variation |
| 13. Jansa vs J Vesely |
 | 0-1 | 37 |
1962 |
CSR-ch | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 14. Jansa vs F Blatny |
| 0-1 | 48 |
1963 |
Telnice/Usti | A30 English, Symmetrical |
| 15. P Viner vs Jansa |
| 0-1 | 40 |
1964 |
Tel Aviv | E92 King's Indian |
| 16. H Ree vs Jansa |
| 0-1 | 27 |
1964 |
WchT U26 11th qual-A | B46 Sicilian, Taimanov Variation |
| 17. Jansa vs G Moehring |
| 0-1 | 68 |
1964 |
DDR | C78 Ruy Lopez |
| 18. Jansa vs Savon |
| 0-1 | 43 |
1964 |
WchT U26 11th fin-A | B06 Robatsch |
| 19. D Trejbal vs Jansa |
| 0-1 | 31 |
1964 |
Czechoslovakiet | B18 Caro-Kann, Classical |
| 20. Plachetka vs Jansa |
| 0-1 | 26 |
1964 |
Harrachov 6465 | B44 Sicilian |
| 21. F Blatny vs Jansa |
| 0-1 | 39 |
1964 |
CSR-ch playoff | B25 Sicilian, Closed |
| 22. Ujtelky vs Jansa |
| 0-1 | 41 |
1964 |
CSR-ch | A36 English |
| 23. Y Stepak vs Jansa |
| 0-1 | 40 |
1964 |
Tel Aviv | E83 King's Indian, Samisch |
| 24. J Kozma vs Jansa |
| 0-1 | 39 |
1964 |
CSR-ch | E64 King's Indian, Fianchetto, Yugoslav System |
| 25. Jansa vs W Pietzsch |
| 0-1 | 39 |
1965 |
Tiblisi | C18 French, Winawer |