| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. T Thorhallsson vs O Kristjansson |
| ½-½ | 44 | 1987 | Icelandic Championship | E69 King's Indian, Fianchetto, Classical Main line |
| 27. O Kristjansson vs K Thorsteins |
| 1-0 | 51 | 1987 | Icelandic Championship | B80 Sicilian, Scheveningen |
| 28. O Kristjansson vs G Thorhallsson |
| 0-1 | 35 | 1987 | Icelandic Championship | B05 Alekhine's Defense, Modern |
| 29. H Olafsson vs O Kristjansson |
| 1-0 | 30 | 1987 | Icelandic Championship | E95 King's Indian, Orthodox, 7...Nbd7, 8.Re1 |
| 30. O Kristjansson vs J Vidarsson |
| 1-0 | 45 | 1987 | Icelandic Championship | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 31. T Arnason vs O Kristjansson |
| 1-0 | 48 | 1987 | Icelandic Championship | E81 King's Indian, Samisch |
| 32. O Kristjansson vs H Stefansson |
| 0-1 | 43 | 1987 | Icelandic Championship | C00 French Defense |
| 33. S Bjarnason vs O Kristjansson |
| 1-0 | 74 | 1987 | Icelandic Championship | E81 King's Indian, Samisch |
| 34. O Kristjansson vs Petursson |
| 0-1 | 40 | 1987 | Icelandic Championship | B77 Sicilian, Dragon, Yugoslav Attack |
| 35. G Runarsson vs O Kristjansson |
| ½-½ | 21 | 1987 | Icelandic Championship | B08 Pirc, Classical |
| 36. O Kristjansson vs M Gurevich |
| 0-1 | 42 | 1988 | Akureyri | B08 Pirc, Classical |
| 37. O Kristjansson vs Dolmatov |
| 0-1 | 43 | 1988 | Akureyri | C17 French, Winawer, Advance |
| 38. H Olafsson vs O Kristjansson |
| 1-0 | 33 | 1988 | Akureyri | B06 Robatsch |
| 39. O Kristjansson vs Petursson |
| 0-1 | 35 | 1988 | Akureyri | B56 Sicilian |
| 40. Polugaevsky vs O Kristjansson |
| 1-0 | 44 | 1988 | Akureyri | A14 English |
| 41. O Kristjansson vs K Thorsteins |
| ½-½ | 59 | 1988 | Akureyri | B83 Sicilian |
| 42. J Tisdall vs O Kristjansson |
| 1-0 | 30 | 1988 | Akureyri | E91 King's Indian |
| 43. O Kristjansson vs J Arnason |
| 0-1 | 31 | 1988 | Akureyri | B68 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 9...Be7 |
| 44. Adorjan vs O Kristjansson |
| 1-0 | 42 | 1988 | Akureyri | A21 English |
| 45. O Kristjansson vs Hjartarson |
| 0-1 | 35 | 1988 | Akureyri | B80 Sicilian, Scheveningen |
| 46. J Vidarsson vs O Kristjansson |
| ½-½ | 14 | 1988 | Akureyri | B45 Sicilian, Taimanov |
| 47. J Tisdall vs O Kristjansson |
| ½-½ | 25 | 1990 | Reykjavik Open | E38 Nimzo-Indian, Classical, 4...c5 |
| 48. O Kristjansson vs Dolmatov |
| 0-1 | 41 | 1990 | Reykjavik Open | A00 Uncommon Opening |
| 49. H A Gretarsson vs O Kristjansson |
| ½-½ | 34 | 1990 | Reykjavik Open | B45 Sicilian, Taimanov |
| 50. O Kristjansson vs O Brendel |
| 1-0 | 53 | 1990 | Reykjavik Open | B32 Sicilian |
Kibitzing
