| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. O Benkner vs F Olafsson |
| ½-½ | 44 |
1952 |
Helsinki ol (Men) | E70 King's Indian |
| 2. O Benkner vs F Olafsson |
| ½-½ | 80 |
1952 |
Helsinki ol (Men) | E71 King's Indian, Makagonov System (5.h3) |
| 3. E German vs F Olafsson |
| 1-0 | 40 |
1952 |
Helsinki ol (Men) | E95 King's Indian, Orthodox, 7...Nbd7, 8.Re1 |
| 4. Julio Bolbochan vs F Olafsson |
| ½-½ | 45 |
1952 |
Helsinki ol (Men) | E68 King's Indian, Fianchetto, Classical Variation, 8.e4 |
| 5. C Doerner vs F Olafsson |
 | 0-1 | 40 |
1952 |
Helsinki ol (Men) | E80 King's Indian, Samisch Variation |
| 6. Wade vs F Olafsson |
| 0-1 | 40 |
1953 |
Hastings | E70 King's Indian |
| 7. O'Kelly vs F Olafsson |
| ½-½ | 48 |
1953 |
Hastings | E69 King's Indian, Fianchetto, Classical Main line |
| 8. Larsen vs F Olafsson |
 | 0-1 | 38 |
1953 |
Wch U20 final-A | E94 King's Indian, Orthodox |
| 9. Szabo vs F Olafsson |
| 1-0 | 42 |
1954 |
Prague | E73 King's Indian |
| 10. Sliwa vs F Olafsson |
| 1-0 | 44 |
1954 |
Prague zt | E81 King's Indian, Samisch |
| 11. Pachman vs F Olafsson |
| 1-0 | 36 |
1954 |
Chech Republic | E87 King's Indian, Samisch, Orthodox |
| 12. Stahlberg vs F Olafsson |
| ½-½ | 22 |
1954 |
Amsterdam ol (Men) | E69 King's Indian, Fianchetto, Classical Main line |
| 13. Larsen vs F Olafsson |
| 1-0 | 59 |
1956 |
Reykjavik m | E63 King's Indian, Fianchetto, Panno Variation |
| 14. Larsen vs F Olafsson |
| 0-1 | 32 |
1957 |
WchT U26 04th | E69 King's Indian, Fianchetto, Classical Main line |
| 15. Najdorf vs F Olafsson |
| ½-½ | 30 |
1957 |
Dallas | E89 King's Indian, Samisch, Orthodox Main line |
| 16. Bobotsov vs F Olafsson |
| 1-0 | 57 |
1958 |
WchT U26 prel-B 05th | E80 King's Indian, Samisch Variation |
| 17. Petrosian vs F Olafsson |
 | ½-½ | 77 |
1958 |
Izt | E92 King's Indian |
| 18. Filip vs F Olafsson |
| ½-½ | 23 |
1958 |
Portoroz izt | E94 King's Indian, Orthodox |
| 19. C Incutto vs F Olafsson |
| 0-1 | 37 |
1960 |
Mar del Plata | E97 King's Indian |
| 20. Pachman vs F Olafsson |
| ½-½ | 17 |
1961 |
Bled 18 | E66 King's Indian, Fianchetto, Yugoslav Panno |
| 21. G Barcza vs F Olafsson |
| 1-0 | 35 |
1962 |
Stockholm izt | E63 King's Indian, Fianchetto, Panno Variation |
| 22. Uhlmann vs F Olafsson |
| 1-0 | 51 |
1962 |
Izt Stockholm | E79 King's Indian, Four Pawns Attack, Main line |
| 23. T Van Scheltinga vs F Olafsson |
| ½-½ | 49 |
1969 |
Wijk aan Zee I | E91 King's Indian |
| 24. H Ree vs F Olafsson |
| ½-½ | 40 |
1969 |
Wijk aan Zee I | E82 King's Indian, Samisch, double Fianchetto Variation |
| 25. J H Donner vs F Olafsson |
| ½-½ | 41 |
1970 |
Lugano | E94 King's Indian, Orthodox |