| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. I Zaja vs Romanishin |
| 0-1 | 49 |
1993 |
Hrvatska | E44 Nimzo-Indian, Fischer Variation, 5.Ne2 |
| 2. I Zaja vs M Grabarczyk |
| ½-½ | 48 |
1997 |
EU-chT (Men) | D35 Queen's Gambit Declined |
| 3. M Manninen vs I Zaja |
| ½-½ | 69 |
1997 |
EU-chT (Men) | D45 Queen's Gambit Declined Semi-Slav |
| 4. P Roberts vs I Zaja |
| 0-1 | 46 |
1997 |
EU-chT (Men) | C05 French, Tarrasch |
| 5. R Mantovani vs I Zaja |
| 1-0 | 25 |
1997 |
EU-chT (Men) | C17 French, Winawer, Advance |
| 6. I Zaja vs Y Pelletier |
| ½-½ | 39 |
1997 |
EU-chT (Men) | D85 Grunfeld |
| 7. R Urukalovic vs I Zaja |
| 0-1 | 39 |
1999 |
It (open), Zagreb (Croatia) | C05 French, Tarrasch |
| 8. I Zaja vs Z Maslac |
| 1-0 | 39 |
1999 |
It (open), Zagreb (Croatia) | E80 King's Indian, Samisch Variation |
| 9. I Zaja vs B Lovric |
| 0-1 | 35 |
1999 |
Montecatini Terme | A10 English |
| 10. I Zaja vs I Sitnik |
| ½-½ | 47 |
1999 |
It (open), Zagreb (Croatia) | E07 Catalan, Closed |
| 11. I Zaja vs I Saric |
| 0-1 | 43 |
1999 |
It (open), Zagreb (Croatia) | A69 Benoni, Four Pawns Attack, Main line |
| 12. D Feletar vs I Zaja |
| 0-1 | 21 |
1999 |
It (open), Zagreb (Croatia) | A04 Reti Opening |
| 13. I Zaja vs T Cop |
| 1-0 | 31 |
1999 |
It (open), Zagreb (Croatia) | E86 King's Indian, Samisch, Orthodox, 7.Nge2 c6 |
| 14. J Renteria vs I Zaja |
| ½-½ | 48 |
2000 |
34th Olympiad | C17 French, Winawer, Advance |
| 15. I Zaja vs Baklan |
| ½-½ | 21 |
2000 |
FIDE World Ch | E11 Bogo-Indian Defense |
| 16. Sadvakasov vs I Zaja |
| 1-0 | 33 |
2000 |
34th Olympiad | C16 French, Winawer |
| 17. I Zaja vs P Velikov |
| ½-½ | 14 |
2000 |
Kastav GM | D17 Queen's Gambit Declined Slav |
| 18. V Sakalauskas vs I Zaja |
| ½-½ | 18 |
2000 |
34th Olympiad | E32 Nimzo-Indian, Classical |
| 19. Baklan vs I Zaja |
| ½-½ | 20 |
2000 |
FIDE World Ch | C78 Ruy Lopez |
| 20. Emms vs I Zaja |
| ½-½ | 47 |
2000 |
34th Olympiad | C06 French, Tarrasch |
| 21. I Zaja vs Baklan |
| 0-1 | 37 |
2000 |
FIDE World Ch | E11 Bogo-Indian Defense |
| 22. I Zaja vs R Zelcic |
| ½-½ | 14 |
2000 |
Umag op | E43 Nimzo-Indian, Fischer Variation |
| 23. I Zaja vs Baklan |
| ½-½ | 29 |
2000 |
FIDE World Ch | E12 Queen's Indian |
| 24. I Zaja vs Ganguly |
| ½-½ | 44 |
2000 |
34th Olympiad | D20 Queen's Gambit Accepted |
| 25. Sutovsky vs I Zaja |
| 0-1 | 28 |
2000 |
Pula zt 1.2 | C16 French, Winawer |