| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. Z Zhang vs H A Gretarsson |
| 0-1 | 52 | 1993 | Wch U16 | C75 Ruy Lopez, Modern Steinitz Defense |
| 2. J Howell vs H A Gretarsson |
| ½-½ | 51 | 1993 | 17th Lloyds Bank Masters Open | C75 Ruy Lopez, Modern Steinitz Defense |
| 3. S Petersen vs H A Gretarsson |
| 0-1 | 38 | 1994 | Copenhagen op 16th | C75 Ruy Lopez, Modern Steinitz Defense |
| 4. M Al-Modiahki vs H A Gretarsson |
| 1-0 | 64 | 1994 | World Junior Championship | C75 Ruy Lopez, Modern Steinitz Defense |
| 5. F Donguines vs H A Gretarsson |
| ½-½ | 18 | 1994 | Moscow Olympiad | C75 Ruy Lopez, Modern Steinitz Defense |
| 6. Nunn vs H A Gretarsson |
| ½-½ | 20 | 1995 | Leeuwarden Open | C75 Ruy Lopez, Modern Steinitz Defense |
| 7. M Ulfarsson vs H A Gretarsson |
| ½-½ | 48 | 1996 | ISL-ch | C75 Ruy Lopez, Modern Steinitz Defense |
| 8. H Stefansson vs H A Gretarsson |
| 1-0 | 53 | 1996 | ISL-ch | C75 Ruy Lopez, Modern Steinitz Defense |
| 9. J Vidarsson vs H A Gretarsson |
| ½-½ | 65 | 1996 | ISL-ch | C75 Ruy Lopez, Modern Steinitz Defense |
| 10. B Jonasson vs H A Gretarsson |
| ½-½ | 43 | 1996 | ISL-ch | C75 Ruy Lopez, Modern Steinitz Defense |
| 11. Nijboer vs H A Gretarsson |
| ½-½ | 38 | 1996 | Hoogovens Group B | C75 Ruy Lopez, Modern Steinitz Defense |
| 12. H Baldursson vs H A Gretarsson |
| 0-1 | 31 | 1996 | Deildakeppni 9596 | C75 Ruy Lopez, Modern Steinitz Defense |
| 13. S Conquest vs H A Gretarsson |
| 0-1 | 42 | 1996 | Reykjavik Open | C75 Ruy Lopez, Modern Steinitz Defense |
| 14. R Lau vs H A Gretarsson |
| 1-0 | 59 | 1996 | Casino Open | C75 Ruy Lopez, Modern Steinitz Defense |
| 15. Ganguly vs H A Gretarsson |
 | 0-1 | 43 | 2002 | Bled Olympiad | C75 Ruy Lopez, Modern Steinitz Defense |
| 16. N Grandelius vs H A Gretarsson |
| 1-0 | 47 | 2013 | TCh-ISL 2012-13 | C75 Ruy Lopez, Modern Steinitz Defense |
Kibitzing
