| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. H Olafsson vs V McCambridge |
| 1-0 | 28 |
1977 |
open | E97 King's Indian |
| 2. H Olafsson vs E Meyer |
| 0-1 | 32 |
1977 |
open | E97 King's Indian |
| 3. H Olafsson vs Larry Evans |
| ½-½ | 51 |
1978 |
Lone Pine | E97 King's Indian |
| 4. H Olafsson vs Benko |
| ½-½ | 13 |
1978 |
Lone Pine | E91 King's Indian |
| 5. H Olafsson vs Biyiasas |
| ½-½ | 34 |
1979 |
Lone Pine op | E92 King's Indian |
| 6. H Olafsson vs J Grefe |
| 1-0 | 33 |
1979 |
Lone Pine op | E92 King's Indian |
| 7. H Olafsson vs I Rogers |
| ½-½ | 20 |
1986 |
OSm Dubai 04 | E90 King's Indian |
| 8. H Olafsson vs L Gutman |
| 1-0 | 43 |
1987 |
Wijk aan Zee | E70 King's Indian |
| 9. H Olafsson vs Chiburdanidze |
| 0-1 | 41 |
1989 |
GMA Baleares op | E70 King's Indian |
| 10. H Olafsson vs Gelfand |
| 0-1 | 32 |
1989 |
Ch New York ( open ) | E77 King's Indian |
| 11. H Olafsson vs Lautier |
| ½-½ | 21 |
1990 |
OSm Novi Sad 0 | E94 King's Indian, Orthodox |
| 12. H Olafsson vs Khalifman |
| 0-1 | 70 |
1991 |
Wijk | E77 King's Indian |
| 13. H Olafsson vs Nunn |
| 0-1 | 33 |
1991 |
Wijk aan Zee 51/581 | E67 King's Indian, Fianchetto |
| 14. H Olafsson vs Lautier |
| 1-0 | 29 |
1991 |
Wijk aan Zee | E94 King's Indian, Orthodox |
| 15. H Olafsson vs Fedorowicz |
| 0-1 | 55 |
1991 |
It (cat.14) | E92 King's Indian |
| 16. H Olafsson vs Van Wely |
| ½-½ | 41 |
1992 |
Debrecen 56/677 | E87 King's Indian, Samisch, Orthodox |
| 17. H Olafsson vs Kotronias |
| ½-½ | 29 |
1992 |
Reykjavik | E77 King's Indian |
| 18. H Olafsson vs Istratescu |
| 0-1 | 53 |
1992 |
EU-chT (Men) | E74 King's Indian, Averbakh, 6...c5 |
| 19. H Olafsson vs Van Wely |
| ½-½ | 21 |
1994 |
Akureyri | E75 King's Indian, Averbakh, Main line |
| 20. H Olafsson vs E Peralta |
| 1-0 | 40 |
2002 |
Bled Olympiad | E75 King's Indian, Averbakh, Main line |
| 21. H Olafsson vs C Beaumont |
| 0-1 | 59 |
2002 |
European Club Cup | E81 King's Indian, Samisch |
| 22. H Olafsson vs V Spassov |
| ½-½ | 35 |
2003 |
4th IECC | E60 King's Indian Defense |
| 23. H Olafsson vs B Avrukh |
| ½-½ | 30 |
2003 |
4th IECC | E63 King's Indian, Fianchetto, Panno Variation |
| 24. H Olafsson vs Weeramantry |
| 1-0 | 28 |
2004 |
36th Olympiad | E63 King's Indian, Fianchetto, Panno Variation |
| 25. H Olafsson vs S Bjarnason |
| 1-0 | 21 |
2004 |
Reykjavik Open | E70 King's Indian |
