| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. S Nedeljkovic vs P Ostojic |
| 1-0 | 37 | 1959 | Serbian Championship | C82 Ruy Lopez, Open |
| 2. P Ostojic vs D Ugrinovic |
| ½-½ | 26 | 1962 | Yugoslav Championship | C64 Ruy Lopez, Classical |
| 3. D Minic vs P Ostojic |
| 1-0 | 41 | 1962 | Yugoslav Championship | B57 Sicilian |
| 4. P Ostojic vs Pirc |
| 0-1 | 39 | 1962 | Yugoslav Championship | B09 Pirc, Austrian Attack |
| 5. A Matanovic vs P Ostojic |
| 1-0 | 36 | 1962 | Yugoslav Championship | B94 Sicilian, Najdorf |
| 6. P Ostojic vs V Kozomara |
| 1-0 | 35 | 1962 | Yugoslav Championship+ | B29 Sicilian, Nimzovich-Rubinstein |
| 7. D Marovic vs P Ostojic |
| ½-½ | 33 | 1962 | Yugoslav Championship | E25 Nimzo-Indian, Samisch |
| 8. P Ostojic vs H Smailbegovic |
| ½-½ | 74 | 1962 | Yugoslav Championship | B88 Sicilian, Fischer-Sozin Attack |
| 9. I Buljovcic vs P Ostojic |
| 0-1 | 32 | 1962 | Yugoslav Championship | B93 Sicilian, Najdorf, 6.f4 |
| 10. P Ostojic vs Janosevic |
| ½-½ | 89 | 1962 | Yugoslav Championship | B80 Sicilian, Scheveningen |
| 11. P Ostojic vs V Sokolov |
| 0-1 | 41 | 1962 | Yugoslav Championship | C87 Ruy Lopez |
| 12. P Ostojic vs E Bukic |
| 1-0 | 49 | 1962 | Yugoslav Championship | B49 Sicilian, Taimanov Variation |
| 13. D Ciric vs P Ostojic |
| 1-0 | 40 | 1962 | Yugoslav Championship | C04 French, Tarrasch, Guimard Main line |
| 14. P Ostojic vs P Mejic |
| 1-0 | 57 | 1962 | Yugoslav Championship | C73 Ruy Lopez, Modern Steinitz Defense |
| 15. M Udovcic vs P Ostojic |
| 0-1 | 48 | 1962 | Yugoslav Championship | A10 English |
| 16. P Ostojic vs A Lukic |
| 1-0 | 75 | 1962 | Yugoslav Championship | C78 Ruy Lopez |
| 17. J Sofrevski vs P Ostojic |
| 0-1 | 42 | 1962 | Yugoslav Championship | D32 Queen's Gambit Declined, Tarrasch |
| 18. M Mihaljcisin vs P Ostojic |
| 0-1 | 21 | 1962 | Yugoslav Championship | B58 Sicilian |
| 19. D Njegovan vs P Ostojic |
| 1-0 | 23 | 1963 | Yugoslav First League | E04 Catalan, Open, 5.Nf3 |
| 20. P Ostojic vs A Deze |
| 1-0 | 30 | 1963 | Yugoslav First League | B06 Robatsch |
| 21. P Ostojic vs M Wotulo |
| 1-0 | 37 | 1963 | Belgrade+ | B94 Sicilian, Najdorf |
| 22. Janosevic vs P Ostojic |
| 1-0 | 49 | 1963 | Belgrade | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 23. P Ostojic vs A A Bikhovsky |
| 1-0 | 37 | 1963 | Belgrade | C91 Ruy Lopez, Closed |
| 24. D Minic vs P Ostojic |
| 1-0 | 29 | 1963 | Belgrade | B14 Caro-Kann, Panov-Botvinnik Attack |
| 25. P Ostojic vs V Tomovic |
| 1-0 | 36 | 1963 | Belgrade | C98 Ruy Lopez, Closed, Chigorin |
Kibitzing
