| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Portisch vs J Kozma |
 | 1-0 | 40 |
1957 |
? | E62 King's Indian, Fianchetto |
| 2. Portisch vs E Orendy |
| 1-0 | 36 |
1959 |
HUN Ch 15th | E62 King's Indian, Fianchetto |
| 3. Portisch vs I Johannsson |
| 1-0 | 33 |
1963 |
Halle | E62 King's Indian, Fianchetto |
| 4. Portisch vs Tal |
| 1-0 | 24 |
1967 |
Moscow | E62 King's Indian, Fianchetto |
| 5. Portisch vs L Sapi |
| 1-0 | 57 |
1968 |
Ungarn | E62 King's Indian, Fianchetto |
| 6. Portisch vs V Ciocaltea |
| ½-½ | 23 |
1971 |
Vrsac | E62 King's Indian, Fianchetto |
| 7. Portisch vs Kavalek |
| ½-½ | 46 |
1972 |
Skopje | E62 King's Indian, Fianchetto |
| 8. Portisch vs E Torre |
| 1-0 | 29 |
1974 |
Manila | E62 King's Indian, Fianchetto |
| 9. Portisch vs E Torre |
| ½-½ | 41 |
1974 |
Manila (Philippines) | E62 King's Indian, Fianchetto |
| 10. Portisch vs Adorjan |
| 0-1 | 46 |
1975 |
Budapest (Hungary) | E62 King's Indian, Fianchetto |
| 11. Portisch vs Larsen |
| 1-0 | 30 |
1977 |
Rotterdam | E62 King's Indian, Fianchetto |
| 12. Portisch vs Kavalek |
| ½-½ | 26 |
1978 |
Buenos Aires | E62 King's Indian, Fianchetto |
| 13. Portisch vs Spassky |
| ½-½ | 20 |
1981 |
Tilburg | E62 King's Indian, Fianchetto |
| 14. Portisch vs J Freyre |
| 1-0 | 32 |
1984 |
Saloniki | E62 King's Indian, Fianchetto |
| 15. Portisch vs Korchnoi |
| 0-1 | 46 |
1986 |
Brussels OHRA-A ,CBM 01 | E62 King's Indian, Fianchetto |
| 16. Portisch vs Judit Polgar |
| ½-½ | 43 |
1994 |
Monaco, Wom-Vet | E62 King's Indian, Fianchetto |
| 17. Portisch vs P Cramling |
| 0-1 | 59 |
1995 |
Women-Veterans Prague | E62 King's Indian, Fianchetto |
