| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. E Gudmundsson vs H A Gretarsson |
| 0-1 | 42 | 1996 | ISL-chT | D12 Queen's Gambit Declined Slav |
| 2. A Kranz vs H A Gretarsson |
 | 0-1 | 10 | 1996 | Liechtenstein op 14th | D12 Queen's Gambit Declined Slav |
| 3. E Jiretorn vs H A Gretarsson |
| 0-1 | 46 | 1996 | Eikrem Memorial | D12 Queen's Gambit Declined Slav |
| 4. R Bator vs H A Gretarsson |
| 0-1 | 30 | 1996 | Eikrem Memorial | D12 Queen's Gambit Declined Slav |
| 5. Bernhard Thomsen vs H A Gretarsson |
| 0-1 | 33 | 1997 | Nordic Grand Prix | D12 Queen's Gambit Declined Slav |
| 6. Sigurdur Kristjansson vs H A Gretarsson |
| 0-1 | 41 | 1998 | ISL-chT 9899 | D12 Queen's Gambit Declined Slav |
| 7. R Bjerke vs H A Gretarsson |
| 0-1 | 40 | 1998 | Eikrem mem | D12 Queen's Gambit Declined Slav |
| 8. Korchnoi vs H A Gretarsson |
| 1-0 | 23 | 2003 | Reykjavik Hrokurinn | D12 Queen's Gambit Declined Slav |
| 9. Shirov vs H A Gretarsson |
| 1-0 | 39 | 2003 | Reykjavik Hrokurinn | D12 Queen's Gambit Declined Slav |
| 10. H S Gretarsson vs H A Gretarsson |
| ½-½ | 127 | 2014 | ch-ISL | D12 Queen's Gambit Declined Slav |
| 11. V Neverov vs H A Gretarsson |
| 1-0 | 28 | 2019 | Lviv Cup | D12 Queen's Gambit Declined Slav |
Kibitzing
