| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. F Olafsson vs S Kristjansson |
| 1-0 | 21 |
1995 |
Corr Island | C07 French, Tarrasch |
| 2. S Kristjansson vs R Akesson |
| 0-1 | 25 |
1998 |
4th Gudmundur Arason | B22 Sicilian, Alapin |
| 3. F Olafsson vs S Kristjansson |
| 1-0 | 32 |
1998 |
ISL Team Ch 9899 | D17 Queen's Gambit Declined Slav |
| 4. Larus Knutsson vs S Kristjansson |
| 0-1 | 28 |
2000 |
Reykjavik op19 | C18 French, Winawer |
| 5. A Moroz vs S Kristjansson |
| 1-0 | 34 |
2000 |
KB Czech Open | C07 French, Tarrasch |
| 6. S Kristjansson vs A Saric |
| 1-0 | 65 |
2000 |
t-EuCh U18 | B17 Caro-Kann, Steinitz Variation |
| 7. A Bikhovsky vs S Kristjansson |
| 0-1 | 42 |
2000 |
Reykjavik op19 | C07 French, Tarrasch |
| 8. S Kristjansson vs P Vavrak |
| 1-0 | 57 |
2000 |
t-EuCh U18 | C12 French, McCutcheon |
| 9. S Kristjansson vs H Palsson |
| 1-0 | 31 |
2000 |
Reykjavik op19 | D02 Queen's Pawn Game |
| 10. Eljanov vs S Kristjansson |
| 1-0 | 60 |
2000 |
t-EuCh U18 | B14 Caro-Kann, Panov-Botvinnik Attack |
| 11. S Kristjansson vs J Arizmendi Martinez |
| 0-1 | 42 |
2000 |
Reykjavik op19 | B33 Sicilian |
| 12. B Rechel vs S Kristjansson |
| 1-0 | 33 |
2000 |
KB Czech Open | C01 French, Exchange |
| 13. H J Schubert vs S Kristjansson |
| 0-1 | 38 |
2000 |
Reykjavik op19 | C01 French, Exchange |
| 14. S Kristjansson vs H Geanta |
| 1-0 | 41 |
2000 |
t-EuCh U18 | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
| 15. Oral vs S Kristjansson |
| 1-0 | 69 |
2000 |
Reykjavik op19 | C05 French, Tarrasch |
| 16. V Mirumian vs S Kristjansson |
| 1-0 | 31 |
2000 |
KB Czech Open | A07 King's Indian Attack |
| 17. S Kristjansson vs A Schmitz |
| 0-1 | 29 |
2000 |
Reykjavik op19 | C00 French Defense |
| 18. A Bokros vs S Kristjansson |
| 1-0 | 32 |
2000 |
t-EuCh U18 | C16 French, Winawer |
| 19. S Kristjansson vs D Sermek |
| 0-1 | 31 |
2000 |
34th Olympiad | C45 Scotch Game |
| 20. S Kristjansson vs L E Johannessen |
| 1-0 | 39 |
2000 |
Reykjavik op19 | C18 French, Winawer |
| 21. S Kristjansson vs T Likavsky |
| 1-0 | 31 |
2000 |
KB Czech Open | B90 Sicilian, Najdorf |
| 22. Timman vs S Kristjansson |
| 1-0 | 32 |
2000 |
Reykjavik op19 | C19 French, Winawer, Advance |
| 23. M Sebenik vs S Kristjansson |
| 1-0 | 42 |
2000 |
t-EuCh U18 | D58 Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst |
| 24. L Ilic vs S Kristjansson |
| 0-1 | 65 |
2001 |
2nd IECC | C15 French, Winawer |
| 25. H Halldorsson vs S Kristjansson |
| ½-½ | 53 |
2001 |
Jonsson Mem Open | C02 French, Advance |