| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. G Halldorsson vs A A Gretarsson |
| 1-0 | 27 |
1984 |
Reykjavik | B93 Sicilian, Najdorf, 6.f4 |
| 2. A A Gretarsson vs N Jakubovics |
| 1-0 | 22 |
1992 |
Gausdal (Norway) | C57 Two Knights |
| 3. A A Gretarsson vs P H Nielsen |
 | 0-1 | 30 |
1992 |
Gausdal (Norway) | C57 Two Knights |
| 4. A A Gretarsson vs M Rygaard |
| 1-0 | 57 |
1992 |
Stockholm (Sweden) | C58 Two Knights |
| 5. A A Gretarsson vs E J Gausel |
| 1-0 | 51 |
1993 |
Reykjavik (Iceland) | C57 Two Knights |
| 6. A A Gretarsson vs Hebden |
| 1-0 | 34 |
1994 |
Kopavogur (Iceland) | C57 Two Knights |
| 7. Bronstein vs A A Gretarsson |
 | 1-0 | 28 |
1996 |
Reykjavik | E92 King's Indian |
| 8. Petursson vs A A Gretarsson |
 | 1-0 | 32 |
1999 |
Icelandic Teams | E73 King's Indian |
| 9. A A Gretarsson vs S Pinchuk |
| ½-½ | 32 |
2002 |
European Club Cup | B43 Sicilian, Kan, 5.Nc3 |
| 10. R Ackermann vs A A Gretarsson |
| 1-0 | 30 |
2004 |
20th European Club Cup | B96 Sicilian, Najdorf |
| 11. K Gvein vs A A Gretarsson |
| ½-½ | 50 |
2004 |
20th European Club Cup | A26 English |
| 12. N Hodzic vs A A Gretarsson |
| 1-0 | 34 |
2004 |
20th European Club Cup | E73 King's Indian |
| 13. A A Gretarsson vs G Margvelashvili |
| 0-1 | 33 |
2004 |
20th European Club Cup | B11 Caro-Kann, Two Knights, 3...Bg4 |
| 14. A A Gretarsson vs B Predojevic |
 | ½-½ | 65 |
2004 |
20th European Club Cup | C41 Philidor Defense |
| 15. A A Gretarsson vs J Salminen |
| 1-0 | 18 |
2004 |
20th European Club Cup | B32 Sicilian |
| 16. Hjartarson vs A A Gretarsson |
| 1-0 | 38 |
2004 |
Icelandic Team Championship | E94 King's Indian, Orthodox |
| 17. Kharlov vs A A Gretarsson |
| 1-0 | 46 |
2004 |
20th European Club Cup | E64 King's Indian, Fianchetto, Yugoslav System |
| 18. A A Gretarsson vs H Teske |
| ½-½ | 13 |
2005 |
21st European Club Cup | B44 Sicilian |
| 19. J Gunnarsson vs A A Gretarsson |
| ½-½ | 45 |
2005 |
21st European Club Cup | B98 Sicilian, Najdorf |
| 20. M Adams vs A A Gretarsson |
| ½-½ | 21 |
2005 |
21st European Club Cup | B99 Sicilian, Najdorf, 7...Be7 Main line |
| 21. A A Gretarsson vs V Yemelin |
 | 0-1 | 32 |
2005 |
21st European Club Cup | C59 Two Knights |
| 22. R Van Ketel vs A A Gretarsson |
 | 1-0 | 67 |
2005 |
21st European Club Cup | A68 Benoni, Four Pawns Attack |
| 23. G Gajewski vs A A Gretarsson |
| 1-0 | 38 |
2012 |
TCh-ISL -13 | E94 King's Indian, Orthodox |