| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. A Ornstein vs D Arngrimsson |
| 1-0 | 34 | 1999 | Troll Masters | A13 English |
| 2. D Bekker-Jensen vs D Arngrimsson |
| 1-0 | 48 | 1999 | Politiken Cup | D35 Queen's Gambit Declined |
| 3. B H Nielsen vs D Arngrimsson |
| 1-0 | 20 | 1999 | Politiken Cup | D51 Queen's Gambit Declined |
| 4. D Arngrimsson vs T Johansson |
| 0-1 | 57 | 1999 | Politiken Cup | C16 French, Winawer |
| 5. D Arngrimsson vs E Nolsoe |
| 0-1 | 31 | 1999 | Politiken Cup | B99 Sicilian, Najdorf, 7...Be7 Main line |
| 6. D Arngrimsson vs G Fant |
| 0-1 | 57 | 1999 | Politiken Cup | C16 French, Winawer |
| 7. D Arngrimsson vs A Karlsen |
| 1-0 | 41 | 1999 | Politiken Cup | C45 Scotch Game |
| 8. F Preuss vs D Arngrimsson |
| 0-1 | 33 | 1999 | Politiken Cup | B53 Sicilian |
| 9. G Kjartansson vs D Arngrimsson |
| 1-0 | 37 | 2000 | Nordic-ch U20 | C63 Ruy Lopez, Schliemann Defense |
| 10. T Lampen vs D Arngrimsson |
| 1-0 | 44 | 2000 | Reykjavik Open | B50 Sicilian |
| 11. D Arngrimsson vs J Fridjonsson |
| 0-1 | 25 | 2000 | Reykjavik Open | B40 Sicilian |
| 12. E K Einarsson vs D Arngrimsson |
| 1-0 | 79 | 2000 | Reykjavik Open | E01 Catalan, Closed |
| 13. D Arngrimsson vs H J Schubert |
| 1-0 | 43 | 2000 | Reykjavik Open | C45 Scotch Game |
| 14. A Schmitz vs D Arngrimsson |
| 0-1 | 50 | 2000 | Reykjavik Open | B22 Sicilian, Alapin |
| 15. J Kleinert vs D Arngrimsson |
| ½-½ | 62 | 2000 | Reykjavik Open | B22 Sicilian, Alapin |
| 16. D Arngrimsson vs S D Sigfusson |
| 0-1 | 49 | 2000 | Reykjavik Open | A07 King's Indian Attack |
| 17. A Jackson vs D Arngrimsson |
| 1-0 | 56 | 2000 | Reykjavik Open | D00 Queen's Pawn Game |
| 18. D Arngrimsson vs H Palsson |
| 1-0 | 40 | 2000 | Reykjavik Open | B00 Uncommon King's Pawn Opening |
| 19. L Havlicek vs D Arngrimsson |
| ½-½ | 46 | 2000 | EU-chT U18 | C45 Scotch Game |
| 20. D Arngrimsson vs J Borisek |
| ½-½ | 47 | 2000 | EU-chT U18 | C45 Scotch Game |
| 21. R Sebe-Vodislav vs D Arngrimsson |
| ½-½ | 40 | 2000 | EU-chT U18 | C45 Scotch Game |
| 22. D Arngrimsson vs A Kovchan |
| 0-1 | 28 | 2000 | EU-chT U18 | B96 Sicilian, Najdorf |
| 23. I Asmundsson vs D Arngrimsson |
| ½-½ | 38 | 2001 | Johann Thorir Jonsson Memorial | A02 Bird's Opening |
| 24. D Arngrimsson vs F Olafsson |
| ½-½ | 23 | 2001 | Johann Thorir Jonsson Memorial | B06 Robatsch |
| 25. S Bjarnason vs D Arngrimsson |
| 0-1 | 61 | 2001 | Johann Thorir Jonsson Memorial | D66 Queen's Gambit Declined, Orthodox Defense, Bd3 line |
Kibitzing
