| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. F Olafsson vs Sajtar |
| ½-½ | 72 |
1954 |
Prague zt | E60 King's Indian Defense |
| 2. F Olafsson vs T Salo |
| 1-0 | 76 |
1954 |
Amsterdam olm | E73 King's Indian |
| 3. F Olafsson vs Larry Evans |
| ½-½ | 45 |
1957 |
Dallas | E66 King's Indian, Fianchetto, Yugoslav Panno |
| 4. F Olafsson vs I Asmundsson |
| 1-0 | 36 |
1957 |
Reykjavik | E63 King's Indian, Fianchetto, Panno Variation |
| 5. F Olafsson vs Gligoric |
| ½-½ | 13 |
1957 |
Dallas | E65 King's Indian, Fianchetto, Yugoslav, 7.O-O |
| 6. F Olafsson vs Szabo |
| ½-½ | 28 |
1957 |
Dallas | E62 King's Indian, Fianchetto |
| 7. F Olafsson vs Gligoric |
| 1-0 | 70 |
1959 |
Bled-Zagreb-Belgrade Candidates | E93 King's Indian, Petrosian System |
| 8. F Olafsson vs Blau |
| 1-0 | 43 |
1959 |
Zurich | E69 King's Indian, Fianchetto, Classical Main line |
| 9. F Olafsson vs Fischer |
 | ½-½ | 40 |
1959 |
Bled-Zagreb-Belgrade Candidates | E60 King's Indian Defense |
| 10. F Olafsson vs Tal |
| ½-½ | 17 |
1959 |
Bled-Zagreb-Belgrade Candidates | E63 King's Indian, Fianchetto, Panno Variation |
| 11. F Olafsson vs Fischer |
 | 0-1 | 40 |
1959 |
Zurich | E93 King's Indian, Petrosian System |
| 12. F Olafsson vs J H Donner |
| ½-½ | 23 |
1959 |
Zurich | E63 King's Indian, Fianchetto, Panno Variation |
| 13. F Olafsson vs Vasiukov |
| ½-½ | 40 |
1959 |
Alekhine mem | E90 King's Indian |
| 14. F Olafsson vs Gligoric |
| ½-½ | 13 |
1960 |
Buenos Aires | E64 King's Indian, Fianchetto, Yugoslav System |
| 15. F Olafsson vs Uhlmann |
| 1-0 | 39 |
1960 |
Buenos Aires | E62 King's Indian, Fianchetto |
| 16. F Olafsson vs Geller |
| 1-0 | 39 |
1961 |
Bled | E60 King's Indian Defense |
| 17. F Olafsson vs Udovcic |
| ½-½ | 42 |
1961 |
Bled | E69 King's Indian, Fianchetto, Classical Main line |
| 18. F Olafsson vs A Niemela |
| ½-½ | 41 |
1961 |
Marianske Lazne zt | E70 King's Indian |
| 19. F Olafsson vs M Bertok |
| ½-½ | 43 |
1961 |
Bled | E76 King's Indian, Four Pawns Attack |
| 20. F Olafsson vs F J Perez Perez |
| 1-0 | 60 |
1961 |
Marianske Lazne zt | E66 King's Indian, Fianchetto, Yugoslav Panno |
| 21. F Olafsson vs J Penrose |
| ½-½ | 40 |
1962 |
Varna ol (Men) | E66 King's Indian, Fianchetto, Yugoslav Panno |
| 22. F Olafsson vs Reshevsky |
| 1-0 | 38 |
1963 |
First Piatigorsky Cup | E60 King's Indian Defense |
| 23. F Olafsson vs Vasiukov |
| ½-½ | 22 |
1966 |
Reykjavik | E60 King's Indian Defense |
| 24. F Olafsson vs Gligoric |
| ½-½ | 13 |
1970 |
Lugano | E66 King's Indian, Fianchetto, Yugoslav Panno |
| 25. F Olafsson vs R Byrne |
| 1-0 | 42 |
1970 |
Lugano | E64 King's Indian, Fianchetto, Yugoslav System |