| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. N Dumbelovic vs A Petrovic |
| 0-1 | 61 | 2023 | Paracin Open-A | B12 Caro-Kann Defense |
| 2. S Harshad vs N Dumbelovic |
| 1-0 | 37 | 2023 | Paracin Open-A | B76 Sicilian, Dragon, Yugoslav Attack |
| 3. F Sun vs N Dumbelovic |
| 0-1 | 55 | 2023 | Paracin Open-A | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 4. N Dumbelovic vs I Prokhorov |
| ½-½ | 48 | 2023 | Paracin Open-A | C49 Four Knights |
| 5. D Akhmedov vs N Dumbelovic |
| 1-0 | 47 | 2023 | Paracin Open-A | A48 King's Indian |
| 6. N Dumbelovic vs N Hercegovac |
| 0-1 | 36 | 2023 | Paracin Open-A | B33 Sicilian |
| 7. D Udovenko vs N Dumbelovic |
| 1-0 | 19 | 2023 | Paracin Open-A | E84 King's Indian, Samisch, Panno Main line |
| 8. Karthikeyan Srivatsan vs N Dumbelovic |
| ½-½ | 57 | 2023 | Paracin Open-A | B54 Sicilian |
| 9. N Dumbelovic vs M Dakic |
| 1-0 | 137 | 2023 | Paracin Open-A | C48 Four Knights |
| 10. L Huseynova vs N Dumbelovic |
| 1-0 | 46 | 2023 | Serbia Open Masters | B76 Sicilian, Dragon, Yugoslav Attack |
| 11. N Dumbelovic vs Mittal Ashvath |
| 1-0 | 63 | 2023 | Serbia Open Masters | B90 Sicilian, Najdorf |
| 12. N Dumbelovic vs S Drazic |
| 0-1 | 52 | 2023 | Serbia Open Masters | C10 French |
| 13. S Lapitsky vs N Dumbelovic |
| ½-½ | 25 | 2023 | Serbia Open Masters | B22 Sicilian, Alapin |
| 14. T Kalogridis vs N Dumbelovic |
| ½-½ | 58 | 2023 | Serbia Open Masters | A45 Queen's Pawn Game |
| 15. N Dumbelovic vs E Ronka |
| ½-½ | 35 | 2023 | Serbia Open Masters | B81 Sicilian, Scheveningen, Keres Attack |
| 16. N Dumbelovic vs G M Todorovic |
| ½-½ | 51 | 2023 | Serbia Open Masters | B40 Sicilian |
| 17. D Shadyev vs N Dumbelovic |
| ½-½ | 37 | 2023 | Serbia Open Masters | B76 Sicilian, Dragon, Yugoslav Attack |
| 18. N Dumbelovic vs H Orujov |
| ½-½ | 35 | 2023 | Serbia Open Masters | B90 Sicilian, Najdorf |
| 19. N Dumbelovic vs D Gavrilescu |
| 0-1 | 31 | 2024 | GRENKE Chess Open | B45 Sicilian, Taimanov |
| 20. I Martic vs N Dumbelovic |
| 1-0 | 32 | 2024 | Serbia Open | B94 Sicilian, Najdorf |
| 21. N Dumbelovic vs N Leskovac |
| ½-½ | 42 | 2024 | Serbia Open | B10 Caro-Kann |
| 22. P Masic vs N Dumbelovic |
| 0-1 | 95 | 2024 | Serbia Open | D05 Queen's Pawn Game |
| 23. N Dumbelovic vs M A Gagic |
| 0-1 | 51 | 2024 | Serbia Open | B32 Sicilian |
| 24. C Tsarsitalidis vs N Dumbelovic |
| 0-1 | 59 | 2024 | Serbia Open | B70 Sicilian, Dragon Variation |
| 25. N Dumbelovic vs E Mehmed |
| 1-0 | 37 | 2024 | Serbia Open | B90 Sicilian, Najdorf |
Kibitzing
