| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. J Gunnarsson vs Bronstein |
| 0-1 | 40 |
1994 |
It (open) | C99 Ruy Lopez, Closed, Chigorin, 12...cd |
| 2. A Gunnarsson vs J Gunnarsson |
| 1-0 | 64 |
1994 |
Reykjavik op Reykjavik ISD | C39 King's Gambit Accepted |
| 3. J Gunnarsson vs V Malakhov |
| 0-1 | 41 |
1995 |
Canaries ol U16 | B27 Sicilian |
| 4. Petursson vs J Gunnarsson |
| 1-0 | 36 |
1996 |
ch-ICE Gardabaer | D37 Queen's Gambit Declined |
| 5. J Gunnarsson vs Bronstein |
 | 0-1 | 50 |
1996 |
Reykjavik | B01 Scandinavian |
| 6. H Westerinen vs J Gunnarsson |
| 0-1 | 36 |
1997 |
It open | C33 King's Gambit Accepted |
| 7. J Gunnarsson vs V Yemelin |
| ½-½ | 37 |
1998 |
4th Gudmundur Arason | B43 Sicilian, Kan, 5.Nc3 |
| 8. J Gunnarsson vs M Padilla Gonzalez |
| 1-0 | 44 |
1998 |
ESP Ronda op | B99 Sicilian, Najdorf, 7...Be7 Main line |
| 9. J Gunnarsson vs E J Gausel |
| 0-1 | 56 |
1999 |
VISA Nordic GP Final | B33 Sicilian |
| 10. H Westerinen vs J Gunnarsson |
| 1-0 | 57 |
1999 |
VISA Nordic GP Final | C34 King's Gambit Accepted |
| 11. H Olafsson vs J Gunnarsson |
 | 1-0 | 31 |
1999 |
Icelandic Teams | D16 Queen's Gambit Declined Slav |
| 12. J Gunnarsson vs S B Hansen |
| ½-½ | 45 |
1999 |
VISA Nordic GP Final | B33 Sicilian |
| 13. H A Gretarsson vs J Gunnarsson |
| 1-0 | 34 |
1999 |
VISA Nordic GP Final | A57 Benko Gambit |
| 14. Stefansson vs J Gunnarsson |
| 1-0 | 72 |
1999 |
ch-ISL | A57 Benko Gambit |
| 15. S Savchenko vs J Gunnarsson |
| 1-0 | 33 |
2000 |
3rd Torshavn International | D16 Queen's Gambit Declined Slav |
| 16. S De Blecourt vs J Gunnarsson |
| 0-1 | 52 |
2000 |
Reykjavik op19 | A57 Benko Gambit |
| 17. J Gunnarsson vs Degraeve |
| ½-½ | 45 |
2000 |
Istanbul ol (Men) | B00 Uncommon King's Pawn Opening |
| 18. S Nyysti vs J Gunnarsson |
| 1-0 | 66 |
2000 |
Reykjavik op19 | C26 Vienna |
| 19. J Gunnarsson vs Psakhis |
| 0-1 | 51 |
2000 |
3rd Torshavn International | C18 French, Winawer |
| 20. B Halldorsson vs J Gunnarsson |
| ½-½ | 10 |
2000 |
Reykjavik op19 | A57 Benko Gambit |
| 21. J Gunnarsson vs Miles |
| 0-1 | 37 |
2000 |
Reykjavik op19 | A37 English, Symmetrical |
| 22. J Gunnarsson vs Speelman |
| 1-0 | 40 |
2000 |
34th Olympiad | B11 Caro-Kann, Two Knights, 3...Bg4 |
| 23. J Gunnarsson vs H A Gretarsson |
 | 0-1 | 42 |
2000 |
Reykjavik op19 | C52 Evans Gambit |
| 24. A Jackson vs J Gunnarsson |
| 0-1 | 33 |
2000 |
Reykjavik op19 | A45 Queen's Pawn Game |
| 25. J Gallagher vs J Gunnarsson |
| ½-½ | 72 |
2000 |
34th Olympiad | C34 King's Gambit Accepted |