| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. I Asmundsson vs H Haraldsson |
| 1-0 | 51 | 1979 | ISL-ch | A07 King's Indian Attack |
| 2. H Haraldsson vs Hjartarson |
| 0-1 | 44 | 1984 | Reykjavik Open | B33 Sicilian |
| 3. J Hector vs H Haraldsson |
| 1-0 | 30 | 1984 | Reykjavik Open | B80 Sicilian, Scheveningen |
| 4. H Haraldsson vs A T Arnason |
| ½-½ | 23 | 1984 | Reykjavik Open | C99 Ruy Lopez, Closed, Chigorin, 12...cd |
| 5. G Taylor vs H Haraldsson |
| 1-0 | 33 | 1984 | Reykjavik Open | A62 Benoni, Fianchetto Variation |
| 6. H Haraldsson vs B Benediktsson |
| 0-1 | 47 | 1984 | Reykjavik Open | D02 Queen's Pawn Game |
| 7. H Haraldsson vs A Bjornsson |
| 1-0 | 47 | 1984 | Reykjavik Open | D47 Queen's Gambit Declined Semi-Slav |
| 8. A A Gretarsson vs H Haraldsson |
| 1-0 | 79 | 1984 | Reykjavik Open | A07 King's Indian Attack |
| 9. H Haraldsson vs S Bjarnason |
| 0-1 | 25 | 1984 | Reykjavik Open | E41 Nimzo-Indian |
| 10. G Thorhallsson vs H Haraldsson |
| 0-1 | 48 | 1984 | Reykjavik Open | B96 Sicilian, Najdorf |
| 11. G Halldorsson vs H Haraldsson |
| 1-0 | 67 | 1984 | Reykjavik Open | B05 Alekhine's Defense, Modern |
| 12. H Haraldsson vs L Josteinsson |
| 1-0 | 59 | 1984 | Reykjavik Open | B16 Caro-Kann, Bronstein-Larsen Variation |
| 13. H Haraldsson vs Van der Sterren |
| 0-1 | 36 | 1986 | Reykjavik Open | D59 Queen's Gambit Declined, Tartakower |
| 14. H Haraldsson vs G Halldorsson |
| 0-1 | 22 | 1986 | Reykjavik Open | D78 Neo-Grunfeld, 6.O-O c6 |
| 15. A Karason vs H Haraldsson |
| 0-1 | 33 | 1986 | Reykjavik Open | E28 Nimzo-Indian, Samisch Variation |
| 16. H Haraldsson vs T Brandhorst |
| 1-0 | 27 | 2008 | NAtlantic tt6 B05 email | C77 Ruy Lopez |
| 17. P Idani vs H Haraldsson |
| 1-0 | 48 | 2015 | Reykjavik Open | B42 Sicilian, Kan |
| 18. S Tjomsland vs H Haraldsson |
| 1-0 | 37 | 2015 | Reykjavik Open | E29 Nimzo-Indian, Samisch |
| 19. H Haraldsson vs V Magnusdottir |
| ½-½ | 36 | 2015 | Reykjavik Open | B83 Sicilian |
| 20. F Steinthorsson vs H Haraldsson |
| 0-1 | 22 | 2015 | Reykjavik Open | A45 Queen's Pawn Game |
| 21. H Haraldsson vs R Bjerke |
| ½-½ | 50 | 2015 | Reykjavik Open | A14 English |
| 22. D Haessel vs H Haraldsson |
| 0-1 | 28 | 2015 | Reykjavik Open | E12 Queen's Indian |
| 23. H Haraldsson vs O Johannesson |
| 0-1 | 48 | 2015 | Reykjavik Open | A09 Reti Opening |
| 24. H Haraldsson vs E H Jensson |
| 0-1 | 41 | 2015 | Reykjavik Open | A15 English |
| 25. F Rambaldi vs H Haraldsson |
 | 1-0 | 54 | 2016 | Reykjavik Open | C05 French, Tarrasch |
Kibitzing
