| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Hector vs H Olsen |
| 1-0 | 35 |
1999 |
VISA Nordic GP Final | C45 Scotch Game |
| 2. H Olafsson vs H Olsen |
| 1-0 | 34 |
1999 |
VISA Nordic GP Final | A11 English, Caro-Kann Defensive System |
| 3. H Olsen vs R Akesson |
| 1-0 | 61 |
1999 |
VISA Nordic GP Final | A40 Queen's Pawn Game |
| 4. H Olsen vs T Bryn |
| 0-1 | 21 |
2006 |
Midnight Sun Chess Challenge | C55 Two Knights Defense |
| 5. R Bergersen vs H Olsen |
| 0-1 | 24 |
2006 |
Midnight Sun Chess Challenge | E60 King's Indian Defense |
| 6. E Isaksen vs H Olsen |
| 1-0 | 31 |
2006 |
Midnight Sun Chess Challenge | B90 Sicilian, Najdorf |
| 7. H Olsen vs K I Esbensen |
| ½-½ | 53 |
2006 |
Midnight Sun Chess Challenge | B75 Sicilian, Dragon, Yugoslav Attack |
| 8. H Olsen vs D Adolfsson |
| ½-½ | 45 |
2006 |
Midnight Sun Chess Challenge | C42 Petrov Defense |
| 9. H Olsen vs A Hagen |
| 0-1 | 23 |
2006 |
Midnight Sun Chess Challenge | B56 Sicilian |
| 10. P Wibe vs H Olsen |
| 1-0 | 40 |
2006 |
Midnight Sun Chess Challenge | B72 Sicilian, Dragon |
| 11. O Pedersen vs H Olsen |
| 1-0 | 51 |
2006 |
Midnight Sun Chess Challenge | B22 Sicilian, Alapin |
| 12. H Olsen vs M Al Sayed |
| 0-1 | 47 |
2008 |
2008 Olympiad | D45 Queen's Gambit Declined Semi-Slav |
| 13. H Olsen vs G Sargissian |
| 0-1 | 41 |
2008 |
2008 Olympiad | E15 Queen's Indian |
| 14. K Solomon vs H Olsen |
| 1-0 | 47 |
2008 |
2008 Olympiad | D11 Queen's Gambit Declined Slav |
| 15. H Olsen vs K Amir |
| 1-0 | 33 |
2008 |
2008 Olympiad | A30 English, Symmetrical |
| 16. H Olsen vs B Gonzalez |
| 0-1 | 32 |
2008 |
2008 Olympiad | A81 Dutch |
| 17. M Russell vs H Olsen |
| 0-1 | 33 |
2008 |
2008 Olympiad | D15 Queen's Gambit Declined Slav |
| 18. H Olsen vs Ah Hamad |
| 1-0 | 29 |
2008 |
2008 Olympiad | A10 English |
| 19. H Olsen vs Jo Cueto |
| 1-0 | 60 |
2008 |
2008 Olympiad | A40 Queen's Pawn Game |
| 20. F Khairallah vs H Olsen |
| 0-1 | 40 |
2008 |
2008 Olympiad | C97 Ruy Lopez, Closed, Chigorin |
| 21. Stellwagen vs H Olsen |
| 1-0 | 47 |
2008 |
2008 Olympiad | C97 Ruy Lopez, Closed, Chigorin |