| May 31, 2026 | Veleski | 0–1 | Ostovic | 45. Zalakaros | Queen's Gambit Declined: Three Knights Variation | |
| May 30, 2026 | Ostovic | 0–1 | Horvath | 45. Zalakaros | Bogo-Indian Defense: Grünfeld Variation | |
| May 29, 2026 | Ostovic | ½–½ | Alsina Leal | 45. Zalakaros | Sicilian Defense: Alapin Variation | |
| May 28, 2026 | Leszko | ½–½ | Ostovic | 45. Zalakaros | Philidor Defense: Lion Variation | |
| May 28, 2026 | Leszko | * | Ostovic | 45. Zalakarosi Sakkfesztivál – Bárczay László emlékverseny | ? | |
| May 27, 2026 | Bin-Suhayl | ½–½ | Ostovic | 45. Zalakaros | Philidor Defense: Lion Variation | |
| May 25, 2026 | Ostovic | 1–0 | Nemeth | 45. Zalakaros | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| May 24, 2026 | Borsos | 0–1 | Ostovic | 45. Zalakaros | Sicilian Defense: Moscow Variation | |
| May 23, 2026 | Ostovic | 1–0 | Gyurkovics | 45. Zalakaros | Sicilian Defense: Alapin Variation | |
| May 20, 2026 | Ostovic | ½–½ | Aczel | 45. Zalakaros | Caro-Kann Defense: Two Knights Attack | |
| Jan 27, 2026 | Saric | 1–0 | Ostovic | Grand Prix HŠS 2026 | Philidor Defense: Lion Variation | |
| Jan 26, 2026 | Ostovic | 0–1 | Saric | Grand Prix HŠS 2026 | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Jan 25, 2026 | Kovac | 0–1 | Ostovic | Grand Prix HŠS 2026 | Bogo-Indian Defense: Retreat Variation | |
| Jan 24, 2026 | Ostovic | 1–0 | Kovac | Grand Prix HŠS 2026 | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Nov 23, 2025 | Zelcic | 1–0 | Ostovic | Round 9: Zelcic, Robert - Ostovic, Matija | Philidor Defense: Nimzowitsch Variation | |
| Nov 22, 2025 | Ostovic | * | Muskardin | Round 8: Ostovic, Matija - Muskardin, Mario | ? | |
| Nov 21, 2025 | Ostovic | * | Muse | Round 7: Ostovic, Matija - Muse, Mladen | ? | |
| Nov 20, 2025 | Vujakovic | 0–1 | Ostovic | Round 6: Vujakovic, Branko - Ostovic, Matija | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Nov 19, 2025 | Ostovic | * | Makaj | Round 5: Ostovic, Matija - Makaj, Marko | ? | |
| Nov 18, 2025 | Tomulic | * | Ostovic | Round 4: Tomulic, Teo - Ostovic, Matija | ? | |
| Nov 17, 2025 | Ostovic | * | Karlusic | Round 3: Ostovic, Matija - Karlusic, Luka | ? | |
| Nov 16, 2025 | Jovanovic | 1–0 | Ostovic | Round 2: Jovanovic, Zoran - Ostovic, Matija | Philidor Defense: Exchange Variation | |
| Nov 15, 2025 | Ostovic | ½–½ | Saric | Round 1: Ostovic, Matija - Saric, Ante | French Defense: Exchange Variation | |
| Jun 1, 2025 | Horvath | 0–1 | Ostovic | Zalakaros2025 | Philidor Defense: Nimzowitsch Variation, Rellstab Variation | |
| May 31, 2025 | Ostovic | 1–0 | Diachek | Zalakaros2025 | Queen's Gambit Declined | |
| May 30, 2025 | Annaberdiyev | ½–½ | Ostovic | Zalakaros2025 | Philidor Defense: Lion Variation | |
| May 29, 2025 | Ostovic | ½–½ | Varadi | Zalakaros2025 | Queen's Pawn Game: Symmetrical Variation | |
| May 28, 2025 | Yao | 0–1 | Ostovic | Zalakaros2025 | Philidor Defense: Lion Variation | |
| May 27, 2025 | Ostovic | ½–½ | Videki | Zalakaros2025 | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| May 26, 2025 | Kiss | 0–1 | Ostovic | Zalakaros2025 | Queen's Gambit Declined: Harrwitz Attack, Fianchetto Defense | |
| May 25, 2025 | Ostovic | ½–½ | Vegh | Zalakaros2025 | English Opening: Agincourt Defense | |
| May 24, 2025 | Borocz | 0–1 | Ostovic | Zalakaros2025 | Philidor Defense: Exchange Variation | |
| May 12, 2024 | Samunenkov | 1–0 | Ostovic | HUN Super league match3 | Philidor Defense: Nimzowitsch Variation, Rellstab Variation | |
| May 11, 2024 | Ostovic | 0–1 | Mazur | HUN Super league match3 | King's Indian Defense: Fianchetto Variation, Carlsbad Variation | |
| May 11, 2024 | Babula | ½–½ | Stevic | HUN Super league match1 | Slav Defense: Quiet Variation, Schallopp Defense | |