| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Z Mestrovic vs Velimirovic |
| 0-1 | 54 |
1963 |
YUG-ch 19th | B25 Sicilian, Closed |
| 2. Matulovic vs Z Mestrovic |
| 1-0 | 36 |
1963 |
YUG-ch 19th | C73 Ruy Lopez, Modern Steinitz Defense |
| 3. Ivkov vs Z Mestrovic |
 | 1-0 | 45 |
1964 |
Zenica | A21 English |
| 4. Hort vs Z Mestrovic |
 | 1-0 | 44 |
1965 |
Sarajevo | E62 King's Indian, Fianchetto |
| 5. Tringov vs Z Mestrovic |
| 1-0 | 52 |
1965 |
Sarajevo 8th | A07 King's Indian Attack |
| 6. Matulovic vs Z Mestrovic |
| 1-0 | 35 |
1965 |
Sarajevo 8th | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
| 7. Suetin vs Z Mestrovic |
| 1-0 | 37 |
1965 |
Sarajevo | B95 Sicilian, Najdorf, 6...e6 |
| 8. Minev vs Z Mestrovic |
| 1-0 | 41 |
1966 |
Sarajevo 09th | A07 King's Indian Attack |
| 9. E Nagy vs Z Mestrovic |
| 1-0 | 41 |
1966 |
Orebro Stud olm fA | C73 Ruy Lopez, Modern Steinitz Defense |
| 10. Z Mestrovic vs G Stefanov |
| 1-0 | 22 |
1966 |
Orebro Stud olm fA | B43 Sicilian, Kan, 5.Nc3 |
| 11. Z Mestrovic vs Hartston |
| ½-½ | 39 |
1966 |
Orebro Stud olm fA | B72 Sicilian, Dragon |
| 12. Z Mestrovic vs Avner |
| 0-1 | 61 |
1966 |
Orebro Stud olm fA | B77 Sicilian, Dragon, Yugoslav Attack |
| 13. Z Mestrovic vs G Lebredo |
| ½-½ | 56 |
1966 |
Orebro Stud olm prelim3 | B86 Sicilian, Fischer-Sozin Attack |
| 14. T Krabbe vs Z Mestrovic |
| 0-1 | 41 |
1966 |
Orebro Stud olm fA | A04 Reti Opening |
| 15. Matulovic vs Z Mestrovic |
| 1-0 | 50 |
1966 |
Sarajevo | C93 Ruy Lopez, Closed, Smyslov Defense |
| 16. U Fritsche vs Z Mestrovic |
| ½-½ | 46 |
1966 |
Orebro Stud olm prelim3 | B22 Sicilian, Alapin |
| 17. Z Mestrovic vs Tal |
| 0-1 | 32 |
1966 |
Sarajevo | B89 Sicilian |
| 18. B Buchman vs Z Mestrovic |
| 0-1 | 56 |
1966 |
Orebro Stud olm fA | E62 King's Indian, Fianchetto |
| 19. Ghizdavu vs Z Mestrovic |
| 0-1 | 32 |
1966 |
Orebro Stud olm fA | B89 Sicilian |
| 20. Tringov vs Z Mestrovic |
| ½-½ | 18 |
1967 |
Sarajevo It | C74 Ruy Lopez, Modern Steinitz Defense |
| 21. M Vukic vs Z Mestrovic |
| 1-0 | 65 |
1967 |
Sarajevo It | E62 King's Indian, Fianchetto |
| 22. Z Mestrovic vs Savon |
| 0-1 | 30 |
1967 |
Sarajevo It | B45 Sicilian, Taimanov |
| 23. Z Mestrovic vs Stein |
 | 0-1 | 25 |
1967 |
Sarajevo (Bosnia & Herzegovina) | B27 Sicilian |
| 24. S Nikolic vs Z Mestrovic |
| 1-0 | 58 |
1967 |
Sarajevo It | C73 Ruy Lopez, Modern Steinitz Defense |
| 25. Z Mestrovic vs Janosevic |
| 0-1 | 32 |
1967 |
Sarajevo It | A45 Queen's Pawn Game |