| 30 jun 2026 | Ulziikhishig Khishigbat 2319 | Kozul, Zdenko 2497 | 0-1 | E70 Defensa India de Rey: Kramer Variation | Kasparov Chess Foundation Friendship Festival 2026 | 67 | Ver |
| 30 jun 2026 | Kozul, Zdenko 2497 | Bouska, Jiri 2321 | ½-½ | A07 King's Indian Attack, with e6 | Kasparov Chess Foundation Friendship Festival 2026 | 50 | Ver |
| 25 jun 2026 | Suta, Andraz 2277 | Kozul, Zdenko 2497 | ½-½ | B67 Defensa Siciliana: Richter-Rauzer Variation, Neo-Modern Variation | Kasparov Chess Foundation Friendship Festival 2026 | 54 | Ver |
| 17 may 2026 | Kozul, Zdenko 2493 | Petrov, Jole 2338 | ½-½ | D11 Defensa Eslava: Quiet Variation | Finale kupa Republike Hrvatske 2026 | 8 | Ver |
| 16 may 2026 | Rogic, Davor 2357 | Kozul, Zdenko 2493 | 0-1 | B66 Defensa Siciliana: Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations | Finale kupa Republike Hrvatske 2026 | 21 | Ver |
| 15 may 2026 | Havas, Juraj 2137 | Kozul, Zdenko 2493 | 0-1 | D02 Apertura de Peón de Dama: Symmetrical Variation, Pseudo-Catalan | Finale kupa Republike Hrvatske 2026 | 45 | Ver |
| 14 may 2026 | Karlovic, Luka 2114 | Kozul, Zdenko 2493 | 0-1 | B23 Defensa Siciliana: Closed | Finale kupa Republike Hrvatske 2026 | 48 | Ver |
| 22 mar 2026 | Kozul, Zdenko 2494 | Schneider, Ilja 2424 | 0-1 | E04 Apertura Catalana: Open Defense | Schachbundesliga 2025/2026 | 58 | Ver |
| 21 mar 2026 | Wong, Gengchun 2229 | Kozul, Zdenko 2494 | 0-1 | B67 Defensa Siciliana: Richter-Rauzer Variation, Neo-Modern Variation | Schachbundesliga 2025/2026 | 39 | Ver |
| 1 mar 2026 | Donchenko, Alexander 2643 | Kozul, Zdenko 2494 | ½-½ | E92 Defensa India de Rey: Petrosian Variation | SBL München | 59 | Ver |
| 28 feb 2026 | Kozul, Zdenko 2499 | Roshka, Yevgeniy 2505 | 1-0 | E10 Blumenfeld Countergambit | SBL München | 63 | Ver |
| 8 feb 2026 | Kozul, Zdenko 2499 | Heinemann, Thies 2403 | ½-½ | E15 Defensa India de Dama: Fianchetto Variation, Nimzowitsch Variation | 1. BL Pauli | 65 | Ver |
| 7 feb 2026 | Sawatzki, Frank 2336 | Kozul, Zdenko 2499 | ½-½ | B92 Defensa Siciliana: Najdorf Variation, Opocensky Variation | 1. BL Pauli | 50 | Ver |
| 31 ene 2026 | Jovanovic, Zoran 2501 | Kozul, Zdenko 2499 | 0-1 | B40 Defensa Siciliana: French Variation | Grand Prix HŠS 2026 | 48 | Ver |
| 30 ene 2026 | Kozul, Zdenko 2499 | Jovanovic, Zoran 2501 | 0-1 | A46 Defensa India: Knights Variation | Grand Prix HŠS 2026 | 70 | Ver |
| 29 ene 2026 | Livaic, Leon 2559 | Kozul, Zdenko 2499 | ½-½ | A01 Ataque Nimzo-Larsen: Classical Variation | Grand Prix HŠS 2026 | 76 | Ver |
| 28 ene 2026 | Kozul, Zdenko 2499 | Livaic, Leon 2559 | 0-1 | E10 Defensa India: Dzindzi-Indian Defense | Grand Prix HŠS 2026 | 40 | Ver |
| 27 ene 2026 | Martinovic, Sasa 2548 | Kozul, Zdenko 2499 | ½-½ | E80 Defensa India de Rey: Sämisch Variation | Grand Prix HŠS 2026 | 46 | Ver |
| 26 ene 2026 | Kozul, Zdenko 2499 | Martinovic, Sasa 2548 | ½-½ | A07 Ataque Indio de Rey | Grand Prix HŠS 2026 | 25 | Ver |
| 25 ene 2026 | Kozul, Zdenko 2499 | Kovacevic, Blazimir 2382 | ½-½ | E00 Apertura Catalana | Grand Prix HŠS 2026 | 36 | Ver |