| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. F Portisch vs Oravez |
 | 1-0 | 10 |
1952 |
Sombathej | B46 Sicilian, Taimanov Variation |
| 2. F Portisch vs S Rosta |
| 1-0 | 21 |
1959 |
Zalaegerszeg | C78 Ruy Lopez |
| 3. F Portisch vs J Vannay |
| 1-0 | 54 |
1959 |
Zalaegerszeg | A00 Uncommon Opening |
| 4. Gy Baranyi vs F Portisch |
| 0-1 | 35 |
1959 |
Zalaegerszeg | A56 Benoni Defense |
| 5. F Portisch vs I Jankovits |
| 1-0 | 27 |
1959 |
Zalaegerszeg | D00 Queen's Pawn Game |
| 6. F Portisch vs G Kluger |
| 1-0 | 44 |
1965 |
HUN-ch 21th | E43 Nimzo-Indian, Fischer Variation |
| 7. G Kluger vs F Portisch |
| ½-½ | 47 |
1966 |
HUN-ch | D55 Queen's Gambit Declined |
| 8. Adorjan vs F Portisch |
| 0-1 | 27 |
1966 |
Hungary | C18 French, Winawer |
| 9. L Sapi vs F Portisch |
| ½-½ | 49 |
1966 |
Ungarn | D97 Grunfeld, Russian |
| 10. F Portisch vs Portisch |
 | ½-½ | 15 |
1966 |
Budapest | A72 Benoni, Classical without 9.O-O |
| 11. G Kluger vs F Portisch |
| 1-0 | 28 |
1967 |
Budapest Bajnogsag 8th | E67 King's Indian, Fianchetto |
| 12. V Faibisovich vs F Portisch |
| 1-0 | 46 |
1969 |
Leningrad | E69 King's Indian, Fianchetto, Classical Main line |
| 13. Taimanov vs F Portisch |
| 1-0 | 32 |
1969 |
Zalaegerszeg | E97 King's Indian |
| 14. H Westerinen vs F Portisch |
| 1-0 | 54 |
1969 |
Leningrad | C07 French, Tarrasch |
| 15. A Kapengut vs F Portisch |
| 1-0 | 47 |
1969 |
Leningrad | A45 Queen's Pawn Game |
| 16. F Portisch vs S Kupka |
| ½-½ | 25 |
1969 |
Leningrad | D92 Grunfeld, 5.Bf4 |
| 17. F Portisch vs I Bilek |
 | 0-1 | 31 |
1969 |
Zalaegerszeg (Hungary) | A42 Modern Defense, Averbakh System |
| 18. F Portisch vs Timman |
 | ½-½ | 57 |
1969 |
Leningrad | A65 Benoni, 6.e4 |
| 19. I Nei vs F Portisch |
| ½-½ | 42 |
1969 |
Zalaegerszeg | C07 French, Tarrasch |
| 20. F Portisch vs G Timoshchenko |
| 0-1 | 38 |
1969 |
Vilnius | A71 Benoni, Classical, 8.Bg5 |
| 21. F Portisch vs A Butnorius |
| 0-1 | 42 |
1969 |
Leningrad | E61 King's Indian |
| 22. F Portisch vs Razuvaev |
| ½-½ | 24 |
1969 |
Leningrad | E61 King's Indian |
| 23. Anikaev vs F Portisch |
| ½-½ | 26 |
1969 |
Leningrad | A05 Reti Opening |
| 24. F Portisch vs Adorjan |
| ½-½ | 14 |
1970 |
Budapest HUN ch | D92 Grunfeld, 5.Bf4 |
| 25. P Dely vs F Portisch |
| ½-½ | 17 |
1970 |
HUN-ch | A02 Bird's Opening |