| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Portisch vs J Penrose |
| ½-½ | 27 |
1958 |
Munchen | E69 King's Indian, Fianchetto, Classical Main line |
| 2. Portisch vs Najdorf |
| ½-½ | 41 |
1961 |
Bled | E69 King's Indian, Fianchetto, Classical Main line |
| 3. Portisch vs S Bakos |
| 1-0 | 40 |
1962 |
Ungarn | E69 King's Indian, Fianchetto, Classical Main line |
| 4. Portisch vs M Aaron |
 | 0-1 | 27 |
1962 |
Varna | E69 King's Indian, Fianchetto, Classical Main line |
| 5. Portisch vs Gligoric |
| 1-0 | 38 |
1964 |
Budapest | E69 King's Indian, Fianchetto, Classical Main line |
| 6. Portisch vs Fischer |
| ½-½ | 46 |
1967 |
Sousse izt | E69 King's Indian, Fianchetto, Classical Main line |
| 7. Portisch vs Stein |
| 1-0 | 58 |
1967 |
Sousse | E69 King's Indian, Fianchetto, Classical Main line |
| 8. Portisch vs Reshevsky |
| ½-½ | 15 |
1967 |
Sousse | E69 King's Indian, Fianchetto, Classical Main line |
| 9. Portisch vs Assabe |
| ½-½ | 41 |
1974 |
Nice | E69 King's Indian, Fianchetto, Classical Main line |
| 10. Portisch vs H Westerinen |
| 1-0 | 50 |
1980 |
Malta | E69 King's Indian, Fianchetto, Classical Main line |
| 11. Portisch vs Ermenkov |
| 1-0 | 37 |
1980 |
Malta | E69 King's Indian, Fianchetto, Classical Main line |
| 12. Portisch vs A Ozsvath |
| 1-0 | 39 |
1992 |
Ungarn | E69 King's Indian, Fianchetto, Classical Main line |
| 13. Portisch vs Groszpeter |
| ½-½ | 19 |
1994 |
Ungarn | E69 King's Indian, Fianchetto, Classical Main line |
