| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. D Arngrimsson vs H J Schubert |
| 1-0 | 43 |
2000 |
Reykjavik op19 | C45 Scotch Game |
| 2. A Jackson vs D Arngrimsson |
| 1-0 | 56 |
2000 |
Reykjavik op19 | D00 Queen's Pawn Game |
| 3. E K Einarsson vs D Arngrimsson |
| 1-0 | 79 |
2000 |
Reykjavik op19 | E01 Catalan, Closed |
| 4. D Arngrimsson vs S D Sigfusson |
| 0-1 | 49 |
2000 |
Reykjavik op19 | A07 King's Indian Attack |
| 5. D Arngrimsson vs J Fridjonsson |
| 0-1 | 25 |
2000 |
Reykjavik op19 | B40 Sicilian |
| 6. J Kleinert vs D Arngrimsson |
| ½-½ | 62 |
2000 |
Reykjavik op19 | B22 Sicilian, Alapin |
| 7. T Lampen vs D Arngrimsson |
| 1-0 | 44 |
2000 |
Reykjavik op19 | B50 Sicilian |
| 8. A Schmitz vs D Arngrimsson |
| 0-1 | 50 |
2000 |
Reykjavik op19 | B22 Sicilian, Alapin |
| 9. D Arngrimsson vs H Palsson |
| 1-0 | 40 |
2000 |
Reykjavik op19 | B00 Uncommon King's Pawn Opening |
| 10. D Arngrimsson vs Hector |
| ½-½ | 59 |
2001 |
Jonsson Mem Open | C45 Scotch Game |
| 11. D Arngrimsson vs G Thorhallsson |
| 0-1 | 73 |
2001 |
Jonsson Mem Open | B32 Sicilian |
| 12. S Bjarnason vs D Arngrimsson |
| 0-1 | 61 |
2001 |
Jonsson Mem Open | D66 Queen's Gambit Declined, Orthodox Defense, Bd3 line |
| 13. B Thorfinnsson vs D Arngrimsson |
| 1-0 | 30 |
2001 |
Jonsson Mem Open | A45 Queen's Pawn Game |
| 14. D Arngrimsson vs F Olafsson |
| ½-½ | 23 |
2001 |
Jonsson Mem Open | B06 Robatsch |
| 15. D Arngrimsson vs R Hardarson |
| ½-½ | 51 |
2001 |
Jonsson Mem Open | A07 King's Indian Attack |
| 16. I Asmundsson vs D Arngrimsson |
| ½-½ | 38 |
2001 |
Jonsson Mem Open | A02 Bird's Opening |
| 17. L E Johannessen vs D Arngrimsson |
| 1-0 | 28 |
2001 |
Jonsson Mem Open | D35 Queen's Gambit Declined |
| 18. L Ptacnikova vs D Arngrimsson |
| 1-0 | 78 |
2001 |
Jonsson Mem Open | A14 English |
| 19. Carlsen vs D Arngrimsson |
| ½-½ | 41 |
2002 |
NOR-ch U18 int | E05 Catalan, Open, Classical line |
| 20. D Arngrimsson vs T Thorhallsson |
| 1-0 | 25 |
2004 |
Reykjavik Open | B22 Sicilian, Alapin |
| 21. G Kjartansson vs D Arngrimsson |
| ½-½ | 17 |
2004 |
Reykjavik Open | C68 Ruy Lopez, Exchange |
| 22. I Johannesson vs D Arngrimsson |
| ½-½ | 41 |
2004 |
Reykjavik Open | A11 English, Caro-Kann Defensive System |
| 23. D Arngrimsson vs Carlsen |
| 0-1 | 35 |
2004 |
Reykjavik Open | B22 Sicilian, Alapin |
| 24. D Arngrimsson vs B Thorfinnsson |
| ½-½ | 62 |
2004 |
Reykjavik Open | C55 Two Knights Defense |
| 25. J Sigurdsson vs D Arngrimsson |
| 0-1 | 41 |
2004 |
Reykjavik Open | C24 Bishop's Opening |