| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. S D Sigfusson vs Judit Polgar |
 | 0-1 | 66 |
1988 |
It ( shv. ) | A37 English, Symmetrical |
| 2. S D Sigfusson vs Zsuzsa Polgar |
| 0-1 | 36 |
1988 |
Reykjavik op | A04 Reti Opening |
| 3. S D Sigfusson vs Dreev |
| 0-1 | 37 |
1990 |
It (open) | A12 English with b3 |
| 4. D Arngrimsson vs S D Sigfusson |
| 0-1 | 49 |
2000 |
Reykjavik op19 | A07 King's Indian Attack |
| 5. S D Sigfusson vs E Bricard |
| 0-1 | 34 |
2000 |
Reykjavik op19 | A45 Queen's Pawn Game |
| 6. S D Sigfusson vs Macieja |
| 0-1 | 47 |
2003 |
European Clubs Cup (Men) | B48 Sicilian, Taimanov Variation |
| 7. S D Sigfusson vs A Zhigalko |
| 0-1 | 30 |
2003 |
European Clubs Cup (Men) | B86 Sicilian, Fischer-Sozin Attack |
| 8. B Halldorsson vs S D Sigfusson |
| 0-1 | 42 |
2004 |
Reykjavik Open | D44 Queen's Gambit Declined Semi-Slav |
| 9. S D Sigfusson vs P Charbonneau |
| 0-1 | 48 |
2004 |
Reykjavik Open | B43 Sicilian, Kan, 5.Nc3 |
| 10. G Gretarsdottir vs S D Sigfusson |
| 0-1 | 35 |
2004 |
Reykjavik Open | C55 Two Knights Defense |
| 11. S D Sigfusson vs Sedlak |
| 0-1 | 27 |
2004 |
Reykjavik Open | C41 Philidor Defense |
| 12. S D Sigfusson vs V Popov |
| 0-1 | 33 |
2005 |
21st European Club Cup | B86 Sicilian, Fischer-Sozin Attack |
| 13. S D Sigfusson vs R Bellin |
| 0-1 | 52 |
2007 |
Kaupthing IM Tournament | C46 Three Knights |
| 14. H Asgeirsson vs S D Sigfusson |
| 0-1 | 37 |
2007 |
Kaupthing IM Tournament | D80 Grunfeld |
| 15. S D Sigfusson vs Lazarev |
| 0-1 | 41 |
2008 |
Hellir International | B48 Sicilian, Taimanov Variation |
| 16. A Misiuga vs S D Sigfusson |
| 0-1 | 31 |
2008 |
Hellir International | D11 Queen's Gambit Declined Slav |
| 17. P Zelbel vs S D Sigfusson |
| 0-1 | 46 |
2011 |
Reykjavik Open | C30 King's Gambit Declined |
| 18. O Kristinsson vs S D Sigfusson |
| 0-1 | 47 |
2011 |
Reykjavik Open | A01 Nimzovich-Larsen Attack |
| 19. S D Sigfusson vs K Miton |
| 0-1 | 47 |
2011 |
Reykjavik Open | B42 Sicilian, Kan |
| 20. O Jonsson vs S D Sigfusson |
| 0-1 | 40 |
2011 |
Reykjavik Open | E60 King's Indian Defense |
| 21. S D Sigfusson vs A Adly |
| 0-1 | 67 |
2011 |
Reykjavik Open | B90 Sicilian, Najdorf |
| 22. S Bjornsson vs S D Sigfusson |
| 0-1 | 27 |
2012 |
Reykjavik Open | B70 Sicilian, Dragon Variation |
