| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Adorjan vs H Olafsson |
| ½-½ | 16 |
1985 |
Esbjerg | A21 English |
| 2. Adorjan vs H Olafsson |
| ½-½ | 17 |
1988 |
It (cat.10) | A29 English, Four Knights, Kingside Fianchetto |
| 3. Azmaiparashvili vs H Olafsson |
| ½-½ | 31 |
1989 |
World Cup Moscow | A29 English, Four Knights, Kingside Fianchetto |
| 4. Larsen vs H Olafsson |
| ½-½ | 39 |
1990 |
Hastings 9091 | A29 English, Four Knights, Kingside Fianchetto |
| 5. Petursson vs H Olafsson |
| ½-½ | 50 |
1994 |
active | A29 English, Four Knights, Kingside Fianchetto |
| 6. Karpov vs H Olafsson |
| 1-0 | 35 |
1994 |
active, It , Reykjavik (Iceland) | A21 English |
| 7. Larsen vs H Olafsson |
| ½-½ | 42 |
1995 |
Reykjavik Olafsson | A21 English |
| 8. E Relange vs H Olafsson |
| 0-1 | 38 |
1998 |
France Iceland Match | A22 English |
| 9. J Torfason vs H Olafsson |
| ½-½ | 31 |
1999 |
Icelandic Teams | A22 English |
| 10. T Vincent vs H Olafsson |
| ½-½ | 19 |
2003 |
Abe Yanofsky Memorial, Open | A20 English |
| 11. P Motwani vs H Olafsson |
| 1-0 | 34 |
2004 |
36th Olympiad | A28 English |
| 12. M Marin vs H Olafsson |
| ½-½ | 17 |
2006 |
37th Chess Olympiad | A29 English, Four Knights, Kingside Fianchetto |