| 23 ago 2026 | Ostovic, Matija 2401 | Dudin, Gleb 2573 | ½-½ | B22 Sicilian Defense: Alapin Variation, Smith-Morra Declined | Kanizsa Open | 46 | Ver |
| 22 ago 2026 | Bluebaum, Matthias 2689 | Ostovic, Matija 2401 | ½-½ | D02 Queen's Pawn Game: London System | Kanizsa Open | 51 | Ver |
| 21 ago 2026 | Jumabayev, Rinat 2572 | Ostovic, Matija 2401 | ½-½ | E09 Catalan Opening: Closed, Main Line | Kanizsa Open | 63 | Ver |
| 20 ago 2026 | Ostovic, Matija 2401 | Kozak, Adam 2535 | ½-½ | C01 French Defense: Exchange Variation | Kanizsa Open | 9 | Ver |
| 19 ago 2026 | Baum, Jonasz 2470 | Ostovic, Matija 2401 | ½-½ | B90 Sicilian Defense: Najdorf Variation | Kanizsa Open | 36 | Ver |
| 18 ago 2026 | Ostovic, Matija 2401 | Bronstein, Or 2484 | ½-½ | B22 Sicilian Defense: Alapin Variation, Smith-Morra Declined | Kanizsa Open | 22 | Ver |
| 17 ago 2026 | Bai, Adelard 2449 | Ostovic, Matija 2401 | ½-½ | D02 Queen's Pawn Game: Symmetrical Variation | Kanizsa Open | 58 | Ver |
| 16 ago 2026 | Ostovic, Matija 2401 | Lutze, Max 2198 | 1-0 | B22 Sicilian Defense: Alapin Variation, Smith-Morra Declined | Kanizsa Open | 44 | Ver |
| 15 ago 2026 | Ivanov, Igor 2233 | Ostovic, Matija 2401 | 0-1 | D00 Queen's Pawn Game: Chigorin Variation | Kabizsa Open | 54 | Ver |
| 31 may 2026 | Veleski, Robert 2085 | Ostovic, Matija 2400 | 0-1 | D37 Queen's Gambit Declined: Three Knights Variation | 45. Zalakaros | 39 | Ver |
| 30 may 2026 | Ostovic, Matija 2400 | Horvath, Adam 2406 | 0-1 | E11 Bogo-Indian Defense: Grünfeld Variation | 45. Zalakaros | 65 | Ver |
| 29 may 2026 | Ostovic, Matija 2400 | Alsina Leal, Daniel 2493 | ½-½ | B22 Sicilian Defense: Alapin Variation | 45. Zalakaros | 47 | Ver |
| 28 may 2026 | Leszko, Bence 2313 | Ostovic, Matija 2400 | ½-½ | C41 Philidor Defense: Lion Variation | 45. Zalakaros | 43 | Ver |
| 27 may 2026 | Bin-Suhayl, Ieysaa 2268 | Ostovic, Matija 2400 | ½-½ | C41 Philidor Defense: Lion Variation | 45. Zalakaros | 31 | Ver |
| 25 may 2026 | Ostovic, Matija 2400 | Nemeth, Zalan 2247 | 1-0 | B22 Sicilian Defense: Alapin Variation, Smith-Morra Declined | 45. Zalakaros | 27 | Ver |
| 24 may 2026 | Borsos, Bogdan 2104 | Ostovic, Matija 2400 | 0-1 | B51 Sicilian Defense: Moscow Variation | 45. Zalakaros | 50 | Ver |
| 23 may 2026 | Ostovic, Matija 2400 | Gyurkovics, Miklos 2037 | 1-0 | B22 Sicilian Defense: Alapin Variation | 45. Zalakaros | 28 | Ver |
| 20 may 2026 | Ostovic, Matija 2400 | Aczel, Gergely 2442 | ½-½ | B10 Caro-Kann Defense: Two Knights Attack | 45. Zalakaros | 13 | Ver |
| 27 ene 2026 | Saric, Ivan 2655 | Ostovic, Matija 2402 | 1-0 | C41 Philidor Defense: Lion Variation | Grand Prix HŠS 2026 | 27 | Ver |
| 26 ene 2026 | Ostovic, Matija 2402 | Saric, Ivan 2655 | 0-1 | B22 Sicilian Defense: Alapin Variation, Smith-Morra Declined | Grand Prix HŠS 2026 | 47 | Ver |