| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. J Njirjak vs B Lundberg |
| 1-0 | 33 | 1997 | European Youth Championship (Under-18) | A10 English |
| 27. S Bekker-Jensen vs J Njirjak |
| 1-0 | 76 | 1997 | European Youth Championship (Under-18) | E75 King's Indian, Averbakh, Main line |
| 28. J Njirjak vs A Pihlajasalo |
| ½-½ | 29 | 1997 | European Youth Championship (Under-18) | E06 Catalan, Closed, 5.Nf3 |
| 29. C Kerek vs J Njirjak |
| 1-0 | 30 | 1997 | European Youth Championship (Under-18) | E92 King's Indian |
| 30. M Parligras vs J Njirjak |
| ½-½ | 23 | 1997 | European Youth Championship (Under-18) | C45 Scotch Game |
| 31. J Njirjak vs A Iljushin |
| 0-1 | 31 | 1997 | European Youth Championship (Under-18) | A07 King's Indian Attack |
| 32. J Njirjak vs D Brulic |
| 1-0 | 47 | 1999 | Croatian Team Championship | A30 English, Symmetrical |
| 33. O Biti vs J Njirjak |
| 1-0 | 33 | 1999 | Croatian Team Championship | B23 Sicilian, Closed |
| 34. J Njirjak vs Z Zufic |
| 1-0 | 26 | 1999 | Croatian Team Championship | A00 Uncommon Opening |
| 35. D Res vs J Njirjak |
| 0-1 | 26 | 1999 | Croatian Team Championship | E90 King's Indian |
| 36. J Njirjak vs M Filipovic |
| ½-½ | 40 | 1999 | Croatian Team Championship | A05 Reti Opening |
| 37. J Njirjak vs T Brenc |
| 1-0 | 13 | 1999 | Croatian Team Championship | D06 Queen's Gambit Declined |
| 38. I Zilic vs J Njirjak |
| 0-1 | 45 | 1999 | Croatian Team Championship | C47 Four Knights |
| 39. J Njirjak vs A Jankovic |
| 1-0 | 33 | 2000 | Bizovac Metalis | A13 English |
| 40. J Njirjak vs M Franic |
| 1-0 | 38 | 2000 | Bizovac Metalis op | A13 English |
| 41. J Njirjak vs D Rasic |
| 0-1 | 44 | 2001 | Metalis op 8th | A15 English |
| 42. N Kirov vs J Njirjak |
 | 1-0 | 25 | 2001 | Slavonija | E65 King's Indian, Fianchetto, Yugoslav, 7.O-O |
| 43. J Njirjak vs H Stevic |
| ½-½ | 32 | 2001 | Slavonija | A41 Queen's Pawn Game (with ...d6) |
| 44. B Kovacevic vs J Njirjak |
| 1-0 | 42 | 2001 | Slavonija | E11 Bogo-Indian Defense |
| 45. D Vargic vs J Njirjak |
| 1-0 | 46 | 2001 | Slavonija | B56 Sicilian |
| 46. J Njirjak vs M Vukic |
| ½-½ | 23 | 2001 | Slavonija | A15 English |
| 47. M Bertok vs J Njirjak |
| 0-1 | 33 | 2001 | Slavonija Swiss | E78 King's Indian, Four Pawns Attack, with Be2 and Nf3 |
| 48. J Njirjak vs V Mladenovic |
| ½-½ | 36 | 2001 | Slavonija Swiss | A04 Reti Opening |
| 49. J Njirjak vs V Zivkovic |
| ½-½ | 10 | 2001 | Slavonija Swiss | A04 Reti Opening |
| 50. M Damjanovic vs J Njirjak |
| ½-½ | 32 | 2001 | Slavonija Swiss | B59 Sicilian, Boleslavsky Variation, 7.Nb3 |
Kibitzing
