| page 1 of 2; games 1-25 of 41 |
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| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. K Darga vs Portisch |
| 0-1 | 26 |
1958 |
Hastings 5859 | B43 Sicilian, Kan, 5.Nc3 |
| 2. Vasiukov vs Portisch |
| ½-½ | 18 |
1959 |
Moscow | B43 Sicilian, Kan, 5.Nc3 |
| 3. A Dueckstein vs Portisch |
| 0-1 | 41 |
1959 |
Ostrig | B43 Sicilian, Kan, 5.Nc3 |
| 4. E Walther vs Portisch |
| 0-1 | 41 |
1960 |
Madrid | B43 Sicilian, Kan, 5.Nc3 |
| 5. Yanofsky vs Portisch |
 | 0-1 | 62 |
1962 |
Stockholm | B43 Sicilian, Kan, 5.Nc3 |
| 6. B Kolvig vs Portisch |
| 0-1 | 36 |
1962 |
Varna | B43 Sicilian, Kan, 5.Nc3 |
| 7. Ivkov vs Portisch |
| ½-½ | 19 |
1963 |
Halle | B43 Sicilian, Kan, 5.Nc3 |
| 8. M Johansson Sr vs Portisch |
| 0-1 | 25 |
1963 |
Halle | B43 Sicilian, Kan, 5.Nc3 |
| 9. O Kinnmark vs Portisch |
| ½-½ | 23 |
1963 |
Halle | B43 Sicilian, Kan, 5.Nc3 |
| 10. Ivkov vs Portisch |
| ½-½ | 28 |
1964 |
Amsterdam izt | B43 Sicilian, Kan, 5.Nc3 |
| 11. Reshevsky vs Portisch |
| 0-1 | 37 |
1964 |
Amsterdam | B43 Sicilian, Kan, 5.Nc3 |
| 12. H Rossetto vs Portisch |
| ½-½ | 73 |
1964 |
Amsterdam | B43 Sicilian, Kan, 5.Nc3 |
| 13. Puig vs Portisch |
| 0-1 | 31 |
1964 |
Malaga | B43 Sicilian, Kan, 5.Nc3 |
| 14. A Medina-Garcia vs Portisch |
| ½-½ | 36 |
1964 |
Tel Aviv | B43 Sicilian, Kan, 5.Nc3 |
| 15. Letelier vs Portisch |
| ½-½ | 41 |
1964 |
Capablanca mem | B43 Sicilian, Kan, 5.Nc3 |
| 16. Hort vs Portisch |
| ½-½ | 23 |
1967 |
Sousse | B43 Sicilian, Kan, 5.Nc3 |
| 17. L Zinn vs Portisch |
| 0-1 | 40 |
1967 |
Halle | B43 Sicilian, Kan, 5.Nc3 |
| 18. A Casa vs Portisch |
| ½-½ | 41 |
1968 |
Lugano | B43 Sicilian, Kan, 5.Nc3 |
| 19. R Reyes vs Portisch |
| 0-1 | 39 |
1968 |
Lugano | B43 Sicilian, Kan, 5.Nc3 |
| 20. W Pietzsch vs Portisch |
| 0-1 | 26 |
1968 |
Lugano | B43 Sicilian, Kan, 5.Nc3 |
| 21. B Nichevsky vs Portisch |
| 0-1 | 56 |
1968 |
Skopje | B43 Sicilian, Kan, 5.Nc3 |
| 22. S Tatai vs Portisch |
| 0-1 | 33 |
1969 |
Amsterdam | B43 Sicilian, Kan, 5.Nc3 |
| 23. A Dueckstein vs Portisch |
| 0-1 | 60 |
1969 |
Raach | B43 Sicilian, Kan, 5.Nc3 |
| 24. Schmid vs Portisch |
| 0-1 | 33 |
1971 |
Adelaide | B43 Sicilian, Kan, 5.Nc3 |
| 25. J P Dominguez Sanz vs Portisch |
| 0-1 | 40 |
1972 |
Las Palmas | B43 Sicilian, Kan, 5.Nc3 |
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| page 1 of 2; games 1-25 of 41 |
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