| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. G Forintos vs Portisch |
| 1-0 | 80 |
1981 |
Budapest | E38 Nimzo-Indian, Classical, 4...c5 |
| 2. K Hulak vs Portisch |
| ½-½ | 18 |
1982 |
Toluca | E38 Nimzo-Indian, Classical, 4...c5 |
| 3. Seirawan vs Portisch |
| 1-0 | 36 |
1983 |
Surakarta/Denpasar | E38 Nimzo-Indian, Classical, 4...c5 |
| 4. Smyslov vs Portisch |
| ½-½ | 39 |
1985 |
Montpellier | E38 Nimzo-Indian, Classical, 4...c5 |
| 5. M Gurevich vs Portisch |
| 1-0 | 43 |
1988 |
Madrid | E38 Nimzo-Indian, Classical, 4...c5 |
| 6. A Chernin vs Portisch |
| ½-½ | 31 |
1990 |
Moskva | E38 Nimzo-Indian, Classical, 4...c5 |
| 7. Zsuzsa Polgar vs Portisch |
| 1-0 | 61 |
1994 |
Monaco, Wom-Vet | E38 Nimzo-Indian, Classical, 4...c5 |
| 8. I Sokolov vs Portisch |
| 0-1 | 33 |
1994 |
Moscow | E38 Nimzo-Indian, Classical, 4...c5 |
| 9. Dreev vs Portisch |
| ½-½ | 34 |
2005 |
21st European Club Cup | E38 Nimzo-Indian, Classical, 4...c5 |
| 10. V Erdos vs Portisch |
| ½-½ | 35 |
2005 |
Hungarian Championships | E38 Nimzo-Indian, Classical, 4...c5 |
| 11. Ljubojevic vs Portisch |
 | 1-0 | 33 |
2008 |
Corus (Honorary Group) | E38 Nimzo-Indian, Classical, 4...c5 |
| 12. Beliavsky vs Portisch |
| ½-½ | 62 |
2008 |
Bazna King's Tournament | E38 Nimzo-Indian, Classical, 4...c5 |
