| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Ivkov vs Puc |
| ½-½ | 41 |
1952 |
YUG-ch | E60 King's Indian Defense |
| 2. Ivkov vs Gligoric |
 | 0-1 | 49 |
1952 |
YUG-ch | E68 King's Indian, Fianchetto, Classical Variation, 8.e4 |
| 3. Ivkov vs V Sokolov |
| ½-½ | 51 |
1954 |
Jugoslavien | E68 King's Indian, Fianchetto, Classical Variation, 8.e4 |
| 4. Ivkov vs Gligoric |
| ½-½ | 40 |
1955 |
Mar del Plata | E60 King's Indian Defense |
| 5. Ivkov vs Lukic Arsenije |
| 1-0 | 38 |
1955 |
Novi Sad | E60 King's Indian Defense |
| 6. Ivkov vs Gligoric |
| ½-½ | 15 |
1955 |
Novi Sad | E64 King's Indian, Fianchetto, Yugoslav System |
| 7. Ivkov vs Matulovic |
 | ½-½ | 45 |
1957 |
Sombor | E60 King's Indian Defense |
| 8. Ivkov vs O Troianescu |
| ½-½ | 10 |
1957 |
Wageningen zt | E64 King's Indian, Fianchetto, Yugoslav System |
| 9. Ivkov vs S Vukovic |
| 1-0 | 42 |
1957 |
Sombor | E64 King's Indian, Fianchetto, Yugoslav System |
| 10. Ivkov vs I Johansson |
| 1-0 | 54 |
1958 |
13th olm qual. group 4 | E60 King's Indian Defense |
| 11. Ivkov vs L Joyner |
| 1-0 | 47 |
1958 |
13th olm qual. group 4 | E66 King's Indian, Fianchetto, Yugoslav Panno |
| 12. Ivkov vs Gligoric |
| ½-½ | 15 |
1958 |
YUG-ch 13th | E60 King's Indian Defense |
| 13. Ivkov vs Taimanov |
| ½-½ | 41 |
1959 |
Dresden | E91 King's Indian |
| 14. Ivkov vs Fischer |
 | ½-½ | 53 |
1959 |
Mar del Plata | E80 King's Indian, Samisch Variation |
| 15. Ivkov vs Larry Evans |
| ½-½ | 51 |
1960 |
Buenos Aires | E97 King's Indian |
| 16. Ivkov vs R Toran Albero |
| ½-½ | 29 |
1960 |
Sarajevo | E91 King's Indian |
| 17. Ivkov vs R Fuchs |
| ½-½ | 20 |
1960 |
Leipzig 14ol f A YUG-DDR | E94 King's Indian, Orthodox |
| 18. Ivkov vs R Byrne |
| 0-1 | 44 |
1960 |
Leipzig | E91 King's Indian |
| 19. Ivkov vs Uhlmann |
| 1-0 | 65 |
1961 |
Beverwijk | E97 King's Indian |
| 20. Ivkov vs M Bertok |
| ½-½ | 22 |
1961 |
Bled | E94 King's Indian, Orthodox |
| 21. Ivkov vs Tal |
 | 0-1 | 68 |
1961 |
Bled | E92 King's Indian |
| 22. Ivkov vs V Ciocaltea |
| 1-0 | 25 |
1962 |
Havana Cap mem | E92 King's Indian |
| 23. Ivkov vs Tal |
 | 1-0 | 42 |
1963 |
Havana | E66 King's Indian, Fianchetto, Yugoslav Panno |
| 24. Ivkov vs Bobotsov |
| ½-½ | 26 |
1963 |
Havana | E62 King's Indian, Fianchetto |
| 25. Ivkov vs Kavalek |
| ½-½ | 62 |
1963 |
Halle | E60 King's Indian Defense |