| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. D Andric vs Udovcic |
| 1-0 | 81 |
1951 |
YUG-ch 7th | E94 King's Indian, Orthodox |
| 2. S Nedeljkovic vs Udovcic |
| 0-1 | 41 |
1951 |
YUG-ch 6th | E67 King's Indian, Fianchetto |
| 3. Gligoric vs Udovcic |
| ½-½ | 50 |
1951 |
YUG-ch 6th | E80 King's Indian, Samisch Variation |
| 4. D Andric vs Udovcic |
| 1-0 | 23 |
1952 |
Belgrade | E70 King's Indian |
| 5. Gligoric vs Udovcic |
| ½-½ | 26 |
1953 |
YUG-ch | E97 King's Indian |
| 6. B Rabar vs Udovcic |
| ½-½ | 38 |
1955 |
Zagreb | E74 King's Indian, Averbakh, 6...c5 |
| 7. Taimanov vs Udovcic |
| 1-0 | 53 |
1956 |
USSR | E80 King's Indian, Samisch Variation |
| 8. Filip vs Udovcic |
| 1-0 | 40 |
1957 |
Gotha | E61 King's Indian |
| 9. F Olafsson vs Udovcic |
| ½-½ | 42 |
1961 |
Bled | E69 King's Indian, Fianchetto, Classical Main line |
| 10. M Germek vs Udovcic |
| ½-½ | 28 |
1961 |
Bled | E80 King's Indian, Samisch Variation |
| 11. Simagin vs Udovcic |
| ½-½ | 40 |
1961 |
Belgrad | E91 King's Indian |
| 12. K Darga vs Udovcic |
| 1-0 | 33 |
1961 |
Bled | E96 King's Indian, Orthodox, 7...Nbd7, Main line |
| 13. Portisch vs Udovcic |
| 1-0 | 33 |
1961 |
Bled | E96 King's Indian, Orthodox, 7...Nbd7, Main line |
| 14. J H Donner vs Udovcic |
| 1-0 | 50 |
1961 |
Bled | E60 King's Indian Defense |
| 15. K Darga vs Udovcic |
| 1-0 | 54 |
1964 |
Capablanca mem | E95 King's Indian, Orthodox, 7...Nbd7, 8.Re1 |
| 16. Larry Evans vs Udovcic |
| 1-0 | 41 |
1964 |
Capablanca mem | E81 King's Indian, Samisch |
| 17. H Rossetto vs Udovcic |
| 1-0 | 41 |
1964 |
Capablanca mem | E97 King's Indian |
| 18. Korchnoi vs Udovcic |
| 1-0 | 37 |
1964 |
Leningrad | E81 King's Indian, Samisch |
| 19. Korchnoi vs Udovcic |
 | 1-0 | 41 |
1970 |
Rovinj/Zagreb | E97 King's Indian |
| 20. Uhlmann vs Udovcic |
| 1-0 | 47 |
1970 |
Croatia | E75 King's Indian, Averbakh, Main line |
