| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Parma vs Y Rantanen |
| ½-½ | 45 |
1962 |
Olympiad | B82 Sicilian, Scheveningen |
| 2. Savon vs Y Rantanen |
| 1-0 | 41 |
1972 |
Skopje ol (Men) prel | E60 King's Indian Defense |
| 3. Hernandez vs Y Rantanen |
| 1-0 | 20 |
1972 |
Skopje | E81 King's Indian, Samisch |
| 4. Y Rantanen vs B Denman |
| 1-0 | 20 |
1972 |
Skopje | B99 Sicilian, Najdorf, 7...Be7 Main line |
| 5. B Jansson vs Y Rantanen |
| 1-0 | 13 |
1973 |
Ribe 6 Nations chT | E18 Queen's Indian, Old Main line, 7.Nc3 |
| 6. Y Rantanen vs T Wibe |
| 0-1 | 29 |
1973 |
Ribe 6 Nations chT | B06 Robatsch |
| 7. M Christoph vs Y Rantanen |
| 0-1 | 72 |
1973 |
Ribe 6 Nations chT | A07 King's Indian Attack |
| 8. I Johannsson vs Y Rantanen |
| 1-0 | 50 |
1973 |
Ribe 6 Nations chT | A04 Reti Opening |
| 9. Y Rantanen vs S Fedder |
| 0-1 | 40 |
1973 |
Ribe 6 Nations chT | B96 Sicilian, Najdorf |
| 10. E Kristiansen vs Y Rantanen |
| ½-½ | 44 |
1974 |
Radio Match | B42 Sicilian, Kan |
| 11. Y Rantanen vs Reshevsky |
| 0-1 | 24 |
1974 |
Olympiad (Finals) | B89 Sicilian |
| 12. Y Rantanen vs R Lontoc |
| 1-0 | 74 |
1974 |
Nice ol (Men) fin-A | B15 Caro-Kann |
| 13. Y Rantanen vs I Bilek |
| 0-1 | 21 |
1974 |
Olympiad | B06 Robatsch |
| 14. Taimanov vs Y Rantanen |
| ½-½ | 46 |
1975 |
Tallinn | D55 Queen's Gambit Declined |
| 15. D Marovic vs Y Rantanen |
| ½-½ | 44 |
1975 |
Tallinn | D58 Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst |
| 16. I Nei vs Y Rantanen |
| 1-0 | 35 |
1975 |
Tallinn | A35 English, Symmetrical |
| 17. Spassky vs Y Rantanen |
| 1-0 | 48 |
1975 |
Tallinn (Estonia) | B42 Sicilian, Kan |
| 18. Hort vs Y Rantanen |
| 1-0 | 19 |
1975 |
Tallinn | D35 Queen's Gambit Declined |
| 19. Y Rantanen vs Lombardy |
| 0-1 | 31 |
1975 |
Tallinn (Estonia) | C57 Two Knights |
| 20. Y Rantanen vs L Espig |
| 0-1 | 43 |
1975 |
Tallinn | A55 Old Indian, Main line |
| 21. Bronstein vs Y Rantanen |
| 1-0 | 34 |
1975 |
Tallinn (Estonia) | E08 Catalan, Closed |
| 22. Y Rantanen vs Keres |
| 0-1 | 23 |
1975 |
Tallinn | C91 Ruy Lopez, Closed |
| 23. L Lengyel vs Y Rantanen |
| ½-½ | 17 |
1975 |
Tallinn | A34 English, Symmetrical |
| 24. Y Rantanen vs Gipslis |
| ½-½ | 49 |
1975 |
Tallinn (Estonia) | E11 Bogo-Indian Defense |
| 25. Sosonko vs Y Rantanen |
| 1-0 | 26 |
1976 |
Haifa olm | D30 Queen's Gambit Declined |