| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. I Ibragimov vs B Thorfinnsson |
| 1-0 | 59 |
1994 |
Reykjavik Open | D54 Queen's Gambit Declined, Anti-Neo-Orthodox Variation |
| 2. V Yemelin vs B Thorfinnsson |
| ½-½ | 83 |
1998 |
4th Gudmundur Arason | B66 Sicilian, Richter-Rauzer Attack, 7...a6 |
| 3. R Akesson vs B Thorfinnsson |
| 1-0 | 29 |
1998 |
4th Gudmundur Arason | E06 Catalan, Closed, 5.Nf3 |
| 4. A Schmitz vs B Thorfinnsson |
| 0-1 | 30 |
2000 |
Reykjavik op19 | B22 Sicilian, Alapin |
| 5. H Olafsson vs B Thorfinnsson |
| 1-0 | 39 |
2000 |
Reykjavik op19 | B24 Sicilian, Closed |
| 6. B Thorfinnsson vs K Edvardsson |
| 1-0 | 41 |
2000 |
Reykjavik op19 | E41 Nimzo-Indian |
| 7. B Thorfinnsson vs J Fridjonsson |
| 1-0 | 40 |
2000 |
Reykjavik op19 | B40 Sicilian |
| 8. Short vs B Thorfinnsson |
 | 1-0 | 23 |
2000 |
Reykjavik op19 | B20 Sicilian |
| 9. E K Einarsson vs B Thorfinnsson |
| ½-½ | 27 |
2000 |
Reykjavik op19 | A14 English |
| 10. G Kjartansson vs B Thorfinnsson |
| 0-1 | 39 |
2000 |
Reykjavik op19 | B56 Sicilian |
| 11. B Thorfinnsson vs L E Johannessen |
| 0-1 | 37 |
2000 |
Reykjavik op19 | E48 Nimzo-Indian, 4.e3 O-O 5.Bd3 d5 |
| 12. B Thorfinnsson vs J Halldorsson |
| 0-1 | 53 |
2000 |
Reykjavik op19 | D02 Queen's Pawn Game |
| 13. S Guliev vs B Thorfinnsson |
| 0-1 | 48 |
2001 |
2nd IECC | E46 Nimzo-Indian |
| 14. D Kjartansson vs B Thorfinnsson |
| ½-½ | 12 |
2001 |
Jonsson Mem Open | C42 Petrov Defense |
| 15. B Thorfinnsson vs Plachetka |
| 1-0 | 28 |
2001 |
Czech Open | A57 Benko Gambit |
| 16. J Pinheiro vs B Thorfinnsson |
 | 0-1 | 29 |
2001 |
EuTCh | D45 Queen's Gambit Declined Semi-Slav |
| 17. B Thorfinnsson vs A Franco |
 | 1-0 | 32 |
2001 |
WJun | E11 Bogo-Indian Defense |
| 18. S Bjornsson vs B Thorfinnsson |
| ½-½ | 15 |
2001 |
ISL-chT 2000/01 | B43 Sicilian, Kan, 5.Nc3 |
| 19. B Thorfinnsson vs J Gdanski |
| ½-½ | 74 |
2001 |
2nd IECC | D24 Queen's Gambit Accepted |
| 20. B Thorfinnsson vs S Kristjansson |
| 0-1 | 56 |
2001 |
ch-ISL | E06 Catalan, Closed, 5.Nf3 |
| 21. T Nedev vs B Thorfinnsson |
| 1-0 | 52 |
2001 |
2nd IECC | B62 Sicilian, Richter-Rauzer |
| 22. Chandler vs B Thorfinnsson |
| 1-0 | 52 |
2001 |
Jonsson Mem Open | B65 Sicilian, Richter-Rauzer Attack, 7...Be7 Defense, 9...Nxd4 |
| 23. M Roiz vs B Thorfinnsson |
| ½-½ | 13 |
2001 |
WJun | E15 Queen's Indian |
| 24. L Rama vs B Thorfinnsson |
| 1-0 | 41 |
2001 |
EuTCh | E00 Queen's Pawn Game |
| 25. B Thorfinnsson vs S Bjornsson |
| 1-0 | 26 |
2001 |
ch-ISL | E77 King's Indian |