| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Timman vs H Olafsson |
| 1-0 | 25 |
1976 |
Reykjavik 23/511 | B97 Sicilian, Najdorf |
| 2. V Liberzon vs H Olafsson |
| ½-½ | 25 |
1979 |
Lone Pine op | B99 Sicilian, Najdorf, 7...Be7 Main line |
| 3. J C Hansen vs H Olafsson |
| 0-1 | 37 |
1981 |
Reykjavik | B93 Sicilian, Najdorf, 6.f4 |
| 4. E Raaste vs H Olafsson |
| ½-½ | 34 |
1981 |
Reykjavik | B93 Sicilian, Najdorf, 6.f4 |
| 5. DeFirmian vs H Olafsson |
| ½-½ | 18 |
1983 |
Bunadarbanka (Iceland) | B93 Sicilian, Najdorf, 6.f4 |
| 6. Chandler vs H Olafsson |
| 0-1 | 35 |
1984 |
Reykjavik (Iceland) | B90 Sicilian, Najdorf |
| 7. Geller vs H Olafsson |
| ½-½ | 26 |
1984 |
Reykjavik | B92 Sicilian, Najdorf, Opocensky Variation |
| 8. J L Arnason vs H Olafsson |
| ½-½ | 17 |
1984 |
Reykjavik | B93 Sicilian, Najdorf, 6.f4 |
| 9. Van der Wiel vs H Olafsson |
| 1-0 | 34 |
1985 |
Reykjavik | B92 Sicilian, Najdorf, Opocensky Variation |
| 10. A Zapata vs H Olafsson |
| 1-0 | 56 |
1987 |
Wijk aan Zee | B90 Sicilian, Najdorf |
| 11. J L Arnason vs H Olafsson |
| ½-½ | 11 |
1987 |
Scandinavia | B93 Sicilian, Najdorf, 6.f4 |
| 12. Sherzer vs H Olafsson |
 | 1-0 | 25 |
1991 |
Philadelphia World op | B90 Sicilian, Najdorf |
| 13. Von Neumann vs H Olafsson |
 | ½-½ | 21 |
1993 |
World Op A, Philadelphia | B96 Sicilian, Najdorf |
| 14. Shabalov vs H Olafsson |
| 1-0 | 38 |
1994 |
It (open) | B90 Sicilian, Najdorf |
| 15. Aronian vs H Olafsson |
| ½-½ | 25 |
1996 |
Yerevan ol (Men) | B90 Sicilian, Najdorf |
| 16. McShane vs H Olafsson |
| 1-0 | 39 |
2000 |
Reykjavik op19 | B90 Sicilian, Najdorf |
| 17. Timman vs H Olafsson |
| 1-0 | 24 |
2001 |
Jonsson Mem Open | B90 Sicilian, Najdorf |
| 18. Baklan vs H Olafsson |
| 1-0 | 44 |
2001 |
ECC | B97 Sicilian, Najdorf |
| 19. V Atlas vs H Olafsson |
| 1-0 | 28 |
2002 |
European Club Cup | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 20. Motylev vs H Olafsson |
| 1-0 | 35 |
2002 |
European Club Cup | B90 Sicilian, Najdorf |
| 21. Stefansson vs H Olafsson |
| 1-0 | 79 |
2002 |
1st Milk Masters | B90 Sicilian, Najdorf |
| 22. A Volokitin vs H Olafsson |
| 1-0 | 38 |
2003 |
4th IECC | B90 Sicilian, Najdorf |
| 23. Stefansson vs H Olafsson |
| ½-½ | 34 |
2004 |
Reykjavik Open | B90 Sicilian, Najdorf |