| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Hort vs M Crues Albareda |
| 1-0 | 54 |
1961 |
Oberhausen (EU/MM: CSSR-SPA) | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 2. Hort vs Filip |
| ½-½ | 26 |
1961 |
CSR-ch | C76 Ruy Lopez, Modern Steinitz Defense, Fianchetto Variation |
| 3. Hort vs Keres |
 | 0-1 | 53 |
1961 |
Oberhausen (EU/MM: CSSR-SU) | C71 Ruy Lopez |
| 4. Hort vs A Matanovic |
| ½-½ | 40 |
1963 |
Moscow | C79 Ruy Lopez, Steinitz Defense Deferred |
| 5. Hort vs E Saguier |
| 1-0 | 40 |
1964 |
Tel Aviv | C77 Ruy Lopez |
| 6. Hort vs J Kostro |
| 1-0 | 34 |
1964 |
Polanica Zdroj | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 7. Hort vs Tringov |
| ½-½ | 30 |
1964 |
Kecskemet zt | C84 Ruy Lopez, Closed |
| 8. Hort vs Geller |
 | 1-0 | 41 |
1966 |
Prague | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 9. Hort vs H Westerinen |
| 1-0 | 27 |
1966 |
Orebro Stud olm fA | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 10. Hort vs G Barcza |
| 1-0 | 47 |
1966 |
Kecskemet | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 11. Hort vs Ivkov |
| 1-0 | 37 |
1966 |
Havana | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 12. Hort vs Sliwa |
 | 1-0 | 37 |
1967 |
Polanica Zdroj | C69 Ruy Lopez, Exchange, Gligoric Variation, 6.d4 |
| 13. Hort vs Reshevsky |
 | ½-½ | 22 |
1967 |
Los Angeles | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 14. Hort vs Gligoric |
| ½-½ | 17 |
1967 |
Sousse | C69 Ruy Lopez, Exchange, Gligoric Variation, 6.d4 |
| 15. Hort vs V Zheliandinov |
 | 1-0 | 12 |
1967 |
Havana | C69 Ruy Lopez, Exchange, Gligoric Variation, 6.d4 |
| 16. Hort vs Kavalek |
| ½-½ | 18 |
1967 |
Sousse | C87 Ruy Lopez |
| 17. Hort vs A Kolarov |
| 1-0 | 34 |
1967 |
Polanica Zdroj | C69 Ruy Lopez, Exchange, Gligoric Variation, 6.d4 |
| 18. Hort vs Gligoric |
| ½-½ | 21 |
1968 |
Skopje | C69 Ruy Lopez, Exchange, Gligoric Variation, 6.d4 |
| 19. Hort vs J Kozma |
| ½-½ | 53 |
1968 |
CSR-ch | C69 Ruy Lopez, Exchange, Gligoric Variation, 6.d4 |
| 20. Hort vs Portisch |
| 0-1 | 32 |
1968 |
Skopje/Ohrid 6/338 | C69 Ruy Lopez, Exchange, Gligoric Variation, 6.d4 |
| 21. Hort vs Minev |
| ½-½ | 55 |
1969 |
Varna | C67 Ruy Lopez |
| 22. Hort vs Gligoric |
| ½-½ | 49 |
1970 |
Rovinj | C93 Ruy Lopez, Closed, Smyslov Defense |
| 23. Hort vs L Lengyel |
| ½-½ | 41 |
1971 |
Wijk aan Zee | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 24. Hort vs Pribyl |
| 1-0 | 63 |
1972 |
CZE | C95 Ruy Lopez, Closed, Breyer |
| 25. Hort vs Ivkov |
| 0-1 | 46 |
1972 |
Wijk aan Zee | C73 Ruy Lopez, Modern Steinitz Defense |