| Oct 26, 2025 | Zlatolas | 0–1 | Kastelic | Round 5: Zlatolas, Anej - Kastelic, Marian | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Oct 26, 2025 | Kastelic | 1–0 | Centrih | Round 4: Kastelic, Marian - Centrih, Aleks | English Opening: King's English Variation, Kramnik-Shirov Counterattack | |
| Oct 25, 2025 | Marn | 1–0 | Kastelic | Round 3: Marn, Jan - Kastelic, Marian | Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation | |
| Oct 25, 2025 | Kastelic | 1–0 | Bedic | Round 2: Kastelic, Marian - Bedic, Slavko | Queen's Pawn Game | |
| Oct 24, 2025 | Magerl | 0–1 | Kastelic | Round 1: Magerl, Zan - Kastelic, Marian | Sicilian Defense: Closed, Traditional | |
| Oct 27, 2024 | Kastelic | 1–0 | Zlatolas | Round 5: Kastelic, Marian - Zlatolas, Anej | Dutch Defense: Raphael Variation | |
| Oct 27, 2024 | Hiti | 0–1 | Kastelic | Round 4: Hiti, Domen - Kastelic, Marian | Grünfeld Defense: Exchange Variation, Spassky Variation | |
| Oct 26, 2024 | Kastelic | 0–1 | Pyrih | Round 3: Kastelic, Marian - Pyrih, Roman | Queen's Pawn Game: Colle System, Anti-Colle | |
| Oct 26, 2024 | Urbanc | 0–1 | Kastelic | Round 2: Urbanc, Suzana - Kastelic, Marian | Horwitz Defense | |
| Oct 25, 2024 | Kastelic | 1–0 | Gombosi | Round 1: Kastelic, Marian - Gombosi, Zarja | Italian Game: Bird's Attack | |
| Apr 5, 2022 | Kastelic | 0–1 | Novosel | European Championship | King's Indian Defense: Normal Variation, King's Knight Variation | |
| Apr 4, 2022 | Loiseau | 1–0 | Kastelic | European Individual Chess Championship | Queen's Gambit Declined: Orthodox Defense, Fianchetto Variation | |
| — | Kastelic | ½–½ | Papadiamandis | European Individual Chess Championship | Grünfeld Defense: Exchange Variation, Modern Exchange Variation | |
| — | Kastelic | ½–½ | Sanikidze | European Individual Chess Championship | Queen's Gambit Declined: Vienna Variation, Quiet Variation | |
| — | Michalik | 1–0 | Kastelic | EICC 22 | Ruy Lopez: Cozio Defense | |
| — | Kovalskyi | 0–1 | Kastelic | European Individual Chess Championship | Sicilian Defense: Snyder Variation | |
| — | Tratar | 1–0 | Kastelic | European Individual Chess Championship | Catalan Opening: Open Defense | |
| — | Monpeurt | ½–½ | Kastelic | European Individual Chess Championship | Ruy Lopez: Cozio Defense | |
