| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. M Munoz Pantoja vs M Ulfarsson |
| 0-1 | 38 | 1993 | World Championship U18 | B20 Sicilian |
| 2. Y Doornbos vs M Ulfarsson |
| 1-0 | 46 | 1993 | World Championship U18 | A07 King's Indian Attack |
| 3. M Ulfarsson vs R Bairachny |
| 0-1 | 32 | 1993 | World Championship U18 | B44 Sicilian |
| 4. J De Maertelaere vs M Ulfarsson |
| ½-½ | 73 | 1993 | World Championship U18 | A48 King's Indian |
| 5. G Casoy vs M Ulfarsson |
| 1-0 | 41 | 1993 | World Championship U18 | B22 Sicilian, Alapin |
| 6. M Ulfarsson vs A Hernandez Jimenez |
| ½-½ | 50 | 1993 | World Championship U18 | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
| 7. M Ulfarsson vs A Sidorenko |
| 0-1 | 45 | 1993 | World Championship U18 | C63 Ruy Lopez, Schliemann Defense |
| 8. M Ulfarsson vs N Noden |
| 0-1 | 39 | 1993 | World Championship U18 | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 9. M Ginzburg vs M Ulfarsson |
| ½-½ | 69 | 1993 | World Championship U18 | B62 Sicilian, Richter-Rauzer |
| 10. R Curtis vs M Ulfarsson |
| 0-1 | 46 | 1993 | World Championship U18 | E32 Nimzo-Indian, Classical |
| 11. M Ulfarsson vs J Arias Bouzada |
| 1-0 | 22 | 1993 | World Championship U18 | B31 Sicilian, Rossolimo Variation |
| 12. O Reeh vs M Ulfarsson |
| 1-0 | 54 | 1993 | Gausdal International | E11 Bogo-Indian Defense |
| 13. Csom vs M Ulfarsson |
| 1-0 | 38 | 1993 | Gausdal International | E67 King's Indian, Fianchetto |
| 14. M Ulfarsson vs F Unger |
| 0-1 | 25 | 1993 | Gausdal International | C42 Petrov Defense |
| 15. M Ulfarsson vs H Lahlum |
| 1-0 | 25 | 1993 | Gausdal International | C18 French, Winawer |
| 16. M Ulfarsson vs N Rashkovsky |
| 0-1 | 18 | 1994 | Reykjavik Open | B90 Sicilian, Najdorf |
| 17. M Kjeld vs M Ulfarsson |
| 1-0 | 44 | 1994 | Reykjavik Open | A48 King's Indian |
| 18. M Ulfarsson vs S Briem |
| 1-0 | 38 | 1994 | Reykjavik Open | C42 Petrov Defense |
| 19. H Steingrimsson vs M Ulfarsson |
| 1-0 | 38 | 1994 | Reykjavik Open | B62 Sicilian, Richter-Rauzer |
| 20. M Ulfarsson vs S Bjornsson |
| ½-½ | 34 | 1994 | Reykjavik Open | B08 Pirc, Classical |
| 21. H Happel vs M Ulfarsson |
| ½-½ | 38 | 1994 | Reykjavik Open | E30 Nimzo-Indian, Leningrad |
| 22. A Kveinys vs M Ulfarsson |
| 1-0 | 31 | 1994 | Reykjavik Open | B62 Sicilian, Richter-Rauzer |
| 23. M Ulfarsson vs T Arnason |
| 0-1 | 26 | 1994 | Reykjavik Open | C18 French, Winawer |
| 24. M Ulfarsson vs J Waitzkin |
| 0-1 | 45 | 1994 | Wch U18 | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
| 25. M Ulfarsson vs B Thorfinnsson |
| 1-0 | 42 | 1995 | Hafnarfjordur op | C78 Ruy Lopez |
Kibitzing
