| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. I Asmundsson vs I Johannsson |
| ½-½ | 13 |
1957 |
Reykjavik | C71 Ruy Lopez |
| 2. Benko vs I Asmundsson |
| ½-½ | 41 |
1957 |
Reykjavik | C08 French, Tarrasch, Open, 4.ed ed |
| 3. I Asmundsson vs F Blatny |
| ½-½ | 67 |
1957 |
WchT U26 04th | E09 Catalan, Closed |
| 4. H Liebert vs I Asmundsson |
| ½-½ | 40 |
1957 |
WchT U26 04th | C08 French, Tarrasch, Open, 4.ed ed |
| 5. I Asmundsson vs G Agustsson |
| ½-½ | 52 |
1957 |
Reykjavik | D25 Queen's Gambit Accepted |
| 6. G Palmason vs I Asmundsson |
| ½-½ | 20 |
1957 |
Reykjavik | E60 King's Indian Defense |
| 7. Sehlstedt vs I Asmundsson |
| ½-½ | 34 |
1957 |
WchT U26 04th | E60 King's Indian Defense |
| 8. I Asmundsson vs Stahlberg |
| ½-½ | 69 |
1957 |
Reykjavik | A04 Reti Opening |
| 9. L Navarovszky vs I Asmundsson |
| ½-½ | 21 |
1957 |
WchT U26 04th | A39 English, Symmetrical, Main line with d4 |
| 10. A Gudmundsson vs I Asmundsson |
| ½-½ | 17 |
1957 |
Reykjavik | E86 King's Indian, Samisch, Orthodox, 7.Nge2 c6 |
| 11. Mednis vs I Asmundsson |
| ½-½ | 28 |
1958 |
WchT U26 prel-B 05th | C08 French, Tarrasch, Open, 4.ed ed |
| 12. Emin Duraku vs I Asmundsson |
| ½-½ | 24 |
1958 |
WchT U26 fin-B 05th | C19 French, Winawer, Advance |
| 13. I Asmundsson vs P Tumurbator |
| ½-½ | 63 |
1958 |
WchT U26 fin-B 05th | D15 Queen's Gambit Declined Slav |
| 14. Ghitescu vs I Asmundsson |
| ½-½ | 47 |
1958 |
WchT U26 fin-B 05th | C16 French, Winawer |
| 15. I Asmundsson vs A Jongsma |
| ½-½ | 34 |
1958 |
WchT U26 fin-B 05th | A67 Benoni, Taimanov Variation |
| 16. I Asmundsson vs M Solmundarson |
| ½-½ | 21 |
1964 |
Reykjavik | B14 Caro-Kann, Panov-Botvinnik Attack |
| 17. I Asmundsson vs T Bjornsson |
| ½-½ | 17 |
1964 |
Reykjavik | B08 Pirc, Classical |
| 18. F Thorbergsson vs I Asmundsson |
| ½-½ | 26 |
1964 |
Reykjavik | E89 King's Indian, Samisch, Orthodox Main line |
| 19. I Asmundsson vs A Gudmundsson |
| ½-½ | 40 |
1964 |
Reykjavik | B07 Pirc |
| 20. K Skold vs I Asmundsson |
| ½-½ | 18 |
1968 |
Lugano ol (Men) fin-B | B02 Alekhine's Defense |
| 21. I Asmundsson vs D Levy |
| ½-½ | 13 |
1968 |
Lugano ol (Men) fin-B | A01 Nimzovich-Larsen Attack |
| 22. G Agustsson vs I Asmundsson |
| ½-½ | 18 |
1973 |
ISL-ch | C01 French, Exchange |
| 23. I Asmundsson vs L Liljedahl |
| ½-½ | 20 |
1973 |
Ribe 6 Nations chT | B03 Alekhine's Defense |
| 24. O Magnusson vs I Asmundsson |
| ½-½ | 22 |
1973 |
ISL-ch | C01 French, Exchange |
| 25. I Asmundsson vs J Torfason |
| ½-½ | 41 |
1973 |
ISL-ch | C81 Ruy Lopez, Open, Howell Attack |