| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Book vs M Rantanen |
| 1-0 | 33 |
1946 |
Helsinki | C05 French, Tarrasch |
| 2. Z Kovacs vs M Rantanen |
| 1-0 | 66 |
1954 |
Amsterdam ol (Men) | D51 Queen's Gambit Declined |
| 3. M Rantanen vs G P Thibaut |
| 1-0 | 72 |
1954 |
Amsterdam ol (Men) | E72 King's Indian |
| 4. M Rantanen vs E Weichselbaumer |
| 1-0 | 39 |
1954 |
Amsterdam ol (Men) | E17 Queen's Indian |
| 5. S Burstein vs M Rantanen |
| 1-0 | 40 |
1954 |
Amsterdam ol (Men) | C07 French, Tarrasch |
| 6. M Rantanen vs M Fox |
| 1-0 | 88 |
1954 |
Amsterdam ol (Men) | A49 King's Indian, Fianchetto without c4 |
| 7. J Penrose vs M Rantanen |
| 1-0 | 35 |
1956 |
Olympiad | B84 Sicilian, Scheveningen |
| 8. M Mallofre vs M Rantanen |
| 1-0 | 50 |
1958 |
13th olm qual. group 2 | B88 Sicilian, Fischer-Sozin Attack |
| 9. F R Anderson vs M Rantanen |
| 1-0 | 75 |
1958 |
13th olm final B | B63 Sicilian, Richter-Rauzer Attack |
| 10. S Smiltiner vs M Rantanen |
| 1-0 | 43 |
1958 |
13th olm final B | A14 English |
| 11. M Rantanen vs S Smiltiner |
 | 1-0 | 87 |
1958 |
13th olm qual. group 2 | E43 Nimzo-Indian, Fischer Variation |
| 12. A Vestol vs M Rantanen |
| 1-0 | 41 |
1958 |
13th olm qual. group 2 | A04 Reti Opening |
| 13. M Rantanen vs Sliwa |
| 1-0 | 52 |
1966 |
La Habana ol (Men) fin-B | E16 Queen's Indian |
| 14. Keene vs M Rantanen |
 | 1-0 | 42 |
1966 |
British Chess Federation v Finland | E55 Nimzo-Indian, 4.e3, Gligoric System, Bronstein Variation |
