| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. E Kahn vs H Stefansson |
| ½-½ | 58 | 1992 | World Junior Championship | E32 Nimzo-Indian, Classical |
| 2. J Xu vs H Stefansson |
| 0-1 | 55 | 1994 | Moscow Olympiad | E32 Nimzo-Indian, Classical |
| 3. B Alterman vs H Stefansson |
| 0-1 | 76 | 1996 | ISL-ISR | E32 Nimzo-Indian, Classical |
| 4. M Gurevich vs H Stefansson |
| 0-1 | 83 | 1997 | Viking Open | E32 Nimzo-Indian, Classical |
| 5. T Hillarp Persson vs H Stefansson |
| ½-½ | 30 | 1997 | Hellir International | E32 Nimzo-Indian, Classical |
| 6. S Shipov vs H Stefansson |
| ½-½ | 46 | 1999 | FIDE World Championship Knockout Tournament | E32 Nimzo-Indian, Classical |
| 7. S Shipov vs H Stefansson |
| 1-0 | 48 | 1999 | FIDE World Championship Knockout Tournament | E32 Nimzo-Indian, Classical |
| 8. A Gershon vs H Stefansson |
| ½-½ | 42 | 2001 | Elbow Beach Club GMA | E32 Nimzo-Indian, Classical |
| 9. S Kishnev vs H Stefansson |
| ½-½ | 20 | 2001 | European Club Cup | E32 Nimzo-Indian, Classical |
| 10. R Vera vs H Stefansson |
| ½-½ | 25 | 2002 | Capablanca Memorial (Elite) | E32 Nimzo-Indian, Classical |
| 11. Karpov vs H Stefansson |
 | 1-0 | 50 | 2004 | Reykjavik Rapid | E32 Nimzo-Indian, Classical |
| 12. I Sokolov vs H Stefansson |
| ½-½ | 32 | 2004 | Calvia Olympiad | E32 Nimzo-Indian, Classical |
| 13. H Steingrimsson vs H Stefansson |
| ½-½ | 22 | 2006 | European Championship | E32 Nimzo-Indian, Classical |
| 14. M Neubauer vs H Stefansson |
| 0-1 | 53 | 2010 | European Championship | E32 Nimzo-Indian, Classical |
| 15. B Thorfinnsson vs H Stefansson |
| 1-0 | 37 | 2012 | ch-ISL | E32 Nimzo-Indian, Classical |
| 16. L Handler vs H Stefansson |
| 0-1 | 21 | 2013 | Reykjavik Open | E32 Nimzo-Indian, Classical |
| 17. D Palo vs H Stefansson |
| ½-½ | 90 | 2013 | European Team Championship | E32 Nimzo-Indian, Classical |
| 18. J Sarkar vs H Stefansson |
| 1-0 | 40 | 2016 | Reykjavik Open | E32 Nimzo-Indian, Classical |
| 19. R Stalmach vs H Stefansson |
| 1-0 | 56 | 2023 | 21st Marienbad A1 GM | E32 Nimzo-Indian, Classical |
| 20. C Natsidis vs H Stefansson |
| ½-½ | 23 | 2023 | 21st Marienbad A1 GM | E32 Nimzo-Indian, Classical |
| 21. H S Gretarsson vs H Stefansson |
| 0-1 | 66 | 2023 | Icelandic Chess Championship | E32 Nimzo-Indian, Classical |
Kibitzing
