| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. J Nun vs K Opocensky |
 | 0-1 | 44 | 1962 | Czechoslovak Championship | B18 Caro-Kann, Classical |
| 2. J Trapl vs J Nun |
| ½-½ | 18 | 1962 | Czechoslovak Championship | D34 Queen's Gambit Declined, Tarrasch |
| 3. J Nun vs J Vesely |
| ½-½ | 20 | 1962 | Czechoslovak Championship | B23 Sicilian, Closed |
| 4. J Nun vs F Blatny |
| ½-½ | 18 | 1962 | Czechoslovak Championship | C01 French, Exchange |
| 5. L Alster vs J Nun |
| ½-½ | 25 | 1962 | Czechoslovak Championship | A08 King's Indian Attack |
| 6. J Nun vs S Kupka |
| ½-½ | 30 | 1962 | Czechoslovak Championship | B21 Sicilian, 2.f4 and 2.d4 |
| 7. J Fabian vs J Nun |
| 1-0 | 63 | 1962 | Czechoslovak Championship | C73 Ruy Lopez, Modern Steinitz Defense |
| 8. J Nun vs J Augustin |
| ½-½ | 24 | 1962 | Czechoslovak Championship | B18 Caro-Kann, Classical |
| 9. Hort vs J Nun |
| ½-½ | 24 | 1962 | Czechoslovak Championship | A16 English |
| 10. J Nun vs Jansa |
| 1-0 | 35 | 1962 | Czechoslovak Championship | E76 King's Indian, Four Pawns Attack |
| 11. J Trmal vs J Nun |
| ½-½ | 41 | 1962 | Czechoslovak Championship | C57 Two Knights |
| 12. J Nun vs J Kozma |
| ½-½ | 14 | 1962 | Czechoslovak Championship | B08 Pirc, Classical |
| 13. J Fichtl vs J Nun |
| ½-½ | 67 | 1962 | Czechoslovak Championship | C70 Ruy Lopez |
| 14. J Nun vs J Hybl |
| 0-1 | 41 | 1962 | Czechoslovak Championship | B23 Sicilian, Closed |
| 15. Plachetka vs J Nun |
| ½-½ | 55 | 1962 | Czechoslovak Championship | D40 Queen's Gambit Declined, Semi-Tarrasch |
| 16. J Nun vs Kavalek |
| ½-½ | 18 | 1962 | Czechoslovak Championship | E76 King's Indian, Four Pawns Attack |
| 17. J Marsalek vs J Nun |
| ½-½ | 29 | 1962 | Czechoslovak Championship | C68 Ruy Lopez, Exchange |
| 18. J Kozma vs J Nun |
| 1-0 | 71 | 1964 | Czechoslovak Championship | A07 King's Indian Attack |
| 19. F Zita vs J Nun |
| ½-½ | 20 | 1964 | Czechoslovak Championship | A06 Reti Opening |
| 20. J Nun vs J Fichtl |
| ½-½ | 49 | 1964 | Czechoslovak Championship | D61 Queen's Gambit Declined, Orthodox, Rubinstein Attack |
| 21. Smejkal vs J Nun |
 | ½-½ | 56 | 1964 | Czechoslovak Championship | D32 Queen's Gambit Declined, Tarrasch |
| 22. J Nun vs E Nowak |
| ½-½ | 76 | 1964 | Czechoslovak Championship | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 23. Jansa vs J Nun |
| 1-0 | 19 | 1964 | Czechoslovak Championship | C41 Philidor Defense |
| 24. J Nun vs L Alster |
| 1-0 | 107 | 1964 | Czechoslovak Championship | A43 Old Benoni |
| 25. M Seifert vs J Nun |
| 1-0 | 33 | 1964 | Czechoslovak Championship | B30 Sicilian |
Kibitzing
