| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Reshevsky vs Portisch |
 | 0-1 | 40 |
1964 |
Amsterdam Interzonal | A04 Reti Opening |
| 2. Portisch vs Reshevsky |
| ½-½ | 24 |
1964 |
Amsterdam Interzonal | B39 Sicilian, Accelerated Fianchetto, Breyer Variation |
| 3. Reshevsky vs Portisch |
| ½-½ | 22 |
1964 |
Tel Aviv | D23 Queen's Gambit Accepted |
| 4. Reshevsky vs Portisch |
| 0-1 | 37 |
1964 |
Amsterdam Interzonal | B43 Sicilian, Kan, 5.Nc3 |
| 5. Reshevsky vs Portisch |
| ½-½ | 30 |
1964 |
Amsterdam Interzonal | A15 English |
| 6. Reshevsky vs Portisch |
| ½-½ | 33 |
1966 |
Mar del Plata | D22 Queen's Gambit Accepted |
| 7. Reshevsky vs Portisch |
 | ½-½ | 16 |
1966 |
Second Piatigorsky Cup | D28 Queen's Gambit Accepted, Classical |
| 8. Portisch vs Reshevsky |
| ½-½ | 41 |
1966 |
Second Piatigorsky Cup | E45 Nimzo-Indian, 4.e3, Bronstein (Byrne) Variation |
| 9. Portisch vs Reshevsky |
| ½-½ | 15 |
1967 |
Sousse Interzonal | E69 King's Indian, Fianchetto, Classical Main line |
| 10. Reshevsky vs Portisch |
| ½-½ | 19 |
1968 |
Lugano | A15 English |
| 11. Portisch vs Reshevsky |
| 1-0 | 58 |
1970 |
Palma de Mallorca Interzonal | A07 King's Indian Attack |
| 12. Portisch vs Reshevsky |
| ½-½ | 40 |
1971 |
Palma de Mallorca | A04 Reti Opening |
| 13. Portisch vs Reshevsky |
 | 1-0 | 28 |
1973 |
Petropolis Interzonal | B36 Sicilian, Accelerated Fianchetto |