| Jun 26, 2026 | Assylov | ½–½ | Sundac | Round 11: Assylov, Miras - Sundac, Ivano | Sicilian Defense: Closed | |
| Jun 25, 2026 | Sundac | 1–0 | Gut | Round 10: Sundac, Ivano - Gut, Raphael | Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation | |
| Jun 24, 2026 | Tamas | 1–0 | Sundac | Round 9: Tamas, Christian-Arrydan - Sundac, Ivano | Sicilian Defense: Hyperaccelerated Dragon | |
| Jun 23, 2026 | Sundac | 1–0 | Besou | World Youth Chess Championship 2026 U18 Open | Yusupov-Rubinstein System | |
| Jun 22, 2026 | Pavleski | 0–1 | Sundac | Round 7: Pavleski, Nikola - Sundac, Ivano | Sicilian Defense: Kan Variation, Polugaevsky Variation | |
| Jun 20, 2026 | Sundac | ½–½ | Maglioni | Round 6: Sundac, Ivano - Maglioni, Leonardo | Queen's Pawn Game: London System | |
| Jun 19, 2026 | Davudov | 1–0 | Sundac | Round 5: Davudov, Tunar - Sundac, Ivano | Sicilian Defense: Kan Variation, Modern Variation | |
| Jun 18, 2026 | Sundac | 1–0 | Folin | Round 4: Sundac, Ivano - Folin, Giorgio | Catalan Opening: Open Defense | |
| Jun 17, 2026 | Zeihen | ½–½ | Sundac | Round 3: Zeihen, Matthieu - Sundac, Ivano | English Opening: Anglo-Indian Defense, Old Indian Formation | |
| Jun 16, 2026 | Sundac | ½–½ | Tsarkou | Round 2: Sundac, Ivano - Tsarkou, Mikhail | Indian Defense: Anti-Nimzo-Indian | |
| Jun 15, 2026 | Retief | ½–½ | Sundac | Round 1: Retief, Matthew - Sundac, Ivano | Queen's Gambit Declined: Traditional Variation | |
| May 17, 2026 | Djuric | ½–½ | Sundac | Round 6: Djuric, Leon - Sundac, Ivano | Queen's Gambit Declined | |
| May 15, 2026 | Safar | 1–0 | Sundac | Round 4: Safar, Sandro - Sundac, Ivano | Rapport-Jobava System | |
| May 14, 2026 | Sundac | 0–1 | Radenic | Round 3: Sundac, Ivano - Radenic, Filip | Catalan Opening | |
| May 14, 2026 | Kovacevic | 0–1 | Sundac | Round 2: Kovacevic, Blazimir - Sundac, Ivano | King's Indian Attack: Pachman System | |
| May 13, 2026 | Sundac | ½–½ | Bosiocic | Round 1: Sundac, Ivano - Bosiocic, Marin | Pseudo Queen's Indian Defense | |
| May 10, 2026 | Sundac | ½–½ | Matyassy | mitropa-men | Bogo-Indian Defense: Retreat Variation | |
| May 9, 2026 | Stickler | 0–1 | Sundac | mitropa-men | Sicilian Defense: Kan Variation, Knight Variation | |
| May 8, 2026 | Eugene | 1–0 | Sundac | mitropa-men | Sicilian Defense: Delayed Alapin Variation | |
| May 7, 2026 | Kozlovic | ½–½ | Sundac | mitropa-men | Sicilian Defense: Delayed Alapin Variation | |
| May 6, 2026 | Mattenberger | ½–½ | Sundac | mitropa-men | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 5, 2026 | Sundac | ½–½ | Bochnicka | mitropa-men | Bogo-Indian Defense: Retreat Variation | |
| May 4, 2026 | Lumachi | 1–0 | Sundac | mitropa-men | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| May 3, 2026 | Sundac | 1–0 | Smolik | mitropa-men | Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation | |
| May 2, 2026 | Schuricht | ½–½ | Sundac | mitropa-men | Zukertort Opening | |
| Apr 20, 2026 | Sundac | 0–1 | Ansat | Round 11: Sundac, Ivano - Ansat, Aldiyar | Queen's Indian Defense: Spassky System | |
| Apr 20, 2026 | Sapenov | 1–0 | Sundac | Round 9: Sapenov, Daniyal - Sundac, Ivano | Sicilian Defense: Dragon Variation, Classical Variation | |
| Apr 20, 2026 | Sundac | ½–½ | Amangeldy | Round 7: Sundac, Ivano - Amangeldy, Ernur | Indian Defense: London System | |
| Apr 19, 2026 | Abdukhakimov | 1–0 | Sundac | Round 6: Abdukhakimov, Akbarali - Sundac, Ivano | Queen's Gambit Accepted: Central Variation, McDonnell Defense | |
| Apr 19, 2026 | Sundac | 0–1 | Omonov | Round 5: Sundac, Ivano - Omonov, Asrorjon | Slav Defense: Quiet Variation, Schallopp Defense | |
| Apr 19, 2026 | Bayantas | ½–½ | Sundac | Round 4: Bayantas, Asman - Sundac, Ivano | Catalan Opening: Closed Variation, Traditional Variation | |
| Apr 19, 2026 | Sundac | 1–0 | Pingin | Round 3: Sundac, Ivano - Pingin, Artem | Queen's Pawn Game: Colle System | |
| Apr 19, 2026 | Akhilbay | ½–½ | Sundac | Round 2: Akhilbay, Imangali - Sundac, Ivano | English Opening: Agincourt Defense | |
| Apr 15, 2026 | Sapenov | 1–0 | Sundac | Round 3: Sapenov, Daniyal - Sundac, Ivano | Catalan Opening: Closed Variation, Traditional Variation | |
| Apr 15, 2026 | Pingin | 1–0 | Sundac | Round 1: Pingin, Artem - Sundac, Ivano | Bogo-Indian Defense: Retreat Variation | |
| Apr 3, 2026 | Sundac | 0–1 | Di Benedetto | X Open Semana Santa 2026 - Grupo A | Queen's Pawn Game: Colle System | |
| Apr 2, 2026 | Sundac | 0–1 | Bogdanov | X Open Semana Santa 2026 - Grupo A | Queen's Pawn Game: Colle System | |
| Feb 1, 2026 | Sundac | 0–1 | Larkin | Round 5: Sundac, Ivano - Larkin, Vladyslav | Yusupov-Rubinstein System | |
| Feb 1, 2026 | Botica | 0–1 | Sundac | Round 4: Botica, Viseslav - Sundac, Ivano | Queen's Gambit Accepted: Normal Variation, Traditional System | |
| Jan 31, 2026 | Tomljanovic | ½–½ | Sundac | Round 2: Tomljanovic, Ivano - Sundac, Ivano | Zukertort Opening: Sicilian Invitation | |
| Dec 20, 2025 | Tomljanovic | 0–1 | Sundac | Crikvenica open | ? | |
| Dec 19, 2025 | Boggarapu | ½–½ | Sundac | Crikvenica open | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Dec 18, 2025 | Sundac | ½–½ | Aljo | Crikvenica open | Queen's Pawn Game: Colle System | |
| Dec 17, 2025 | Arun | ½–½ | Sundac | Crikvenica open | Semi-Slav Defense: Normal Variation | |
| Dec 16, 2025 | Sundac | ½–½ | Petrus | Crikvenica open | Zukertort Opening: Dutch Variation | |
| Dec 15, 2025 | Glas | 0–1 | Sundac | Crikvenica open | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Dec 14, 2025 | Sundac | 0–1 | Mandalinic | Crikvenica open | Dutch Defense: Hopton Attack | |
| Dec 13, 2025 | Kresic | 0–1 | Sundac | Crikvenica open | Queen's Pawn Game: Modern Defense | |
| Dec 12, 2025 | Sundac | ½–½ | Ivancic | Crikvenica open | Queen's Pawn Game: Colle System | |
| Oct 4, 2025 | Sundac | 0–1 | Siddharth | Round 1: Sundac, Ivano - Siddharth, Jagadeesh | Queen's Pawn Game: London System, with e6 | |
| Jul 30, 2025 | Babler | 0–1 | Sundac | Pojedinacno prvenstvo Hrvatske za juniorke i juniore 2025 | Sicilian Defense: Accelerated Dragon, Maróczy Bind, Gurgenidze Variation | |
| Jul 29, 2025 | Sundac | 0–1 | Gal | Pojedinacno prvenstvo Hrvatske za juniorke i juniore 2025 | Queen's Pawn Game: London System | |
| Jul 28, 2025 | Sundac | 1–0 | Tomljanovic | Pojedinacno prvenstvo Hrvatske za juniorke i juniore 2025 | English Opening: King's English Variation, Two Knights Variation, Smyslov System | |
| Jul 28, 2025 | Simunkovic | 0–1 | Sundac | Pojedinacno prvenstvo Hrvatske za juniorke i juniore 2025 | Sicilian Defense: Kan Variation | |
| Jul 27, 2025 | Sundac | ½–½ | Konjevic | Pojedinacno prvenstvo Hrvatske za juniorke i juniore 2025 | Zukertort Opening | |
| Jul 26, 2025 | Petrus | ½–½ | Sundac | Pojedinacno prvenstvo Hrvatske za juniorke i juniore 2025 | Sicilian Defense: French Variation | |
| Jul 25, 2025 | Sundac | 1–0 | Malaric | Pojedinacno prvenstvo Hrvatske za juniorke i juniore 2025 | Zukertort Opening: Quiet System | |
| Jul 25, 2025 | Mimica | 0–1 | Sundac | Pojedinacno prvenstvo Hrvatske za juniorke i juniore 2025 | Sicilian Defense: Najdorf Variation, Lipnitsky Attack | |
| Jul 24, 2025 | Sundac | 1–0 | Jukic | Pojedinacno prvenstvo Hrvatske za juniorke i juniore 2025 | Réti Opening: Advance Variation | |
| Jul 11, 2025 | Olenik Campa | 1–0 | Sundac | Round 7: Olenik Campa, Rudi - Sundac, Ivano | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jul 10, 2025 | Nemec | 1–0 | Sundac | Round 6: Nemec, Jachym - Sundac, Ivano | Queen's Gambit Declined | |
| Jul 9, 2025 | Sundac | 1–0 | Keber | Round 5: Sundac, Ivano - Keber, Aljosa | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Jul 5, 2025 | Palczert | 1–0 | Sundac | Round 1: Palczert, Matyas - Sundac, Ivano | Sicilian Defense: Moscow Variation | |
| Jan 31, 2025 | Sundac | ½–½ | Gregoric | Round 9: Sundac, Ivano - Gregoric, Andraz | Zukertort Opening: Nimzo-Larsen Variation | |
| Jan 30, 2025 | Drazic | 1–0 | Sundac | Round 8: Drazic, Sinisa - Sundac, Ivano | Sicilian Defense: Sozin Attack, Leonhardt Variation | |
| Jan 29, 2025 | Sundac | 1–0 | Zlindra | Round 7: Sundac, Ivano - Zlindra, Aljaz | Caro-Kann Defense: Apocalypse Attack | |
| Jan 28, 2025 | Beliavsky | 1–0 | Sundac | Round 6: Beliavsky, Alexander G - Sundac, Ivano | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jan 27, 2025 | Sundac | 1–0 | Skrbec | Round 5: Sundac, Ivano - Skrbec, Leon | Sicilian Defense: Grand Prix Attack | |
| Jan 26, 2025 | Pirvulescu | 0–1 | Sundac | Round 4: Pirvulescu, Adrian - Sundac, Ivano | Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line | |
| Jan 25, 2025 | Sundac | ½–½ | Doraszelski | Round 3: Sundac, Ivano - Doraszelski, Alexander | Nimzo-Larsen Attack: Classical Variation | |
| Jan 25, 2025 | Perossa | ½–½ | Sundac | Round 2: Perossa, Nicolas - Sundac, Ivano | Sicilian Defense: Moscow Variation | |
| Jan 24, 2025 | Sundac | ½–½ | Kozlovic | Round 1: Sundac, Ivano - Kozlovic, Jernej | Tarrasch Defense: Two Knights Variation | |
| Jul 27, 2024 | Ivancic | 0–1 | Sundac | Round 8: Ivancic, Ivan - Sundac, Ivano | Sicilian Defense: O'Kelly Variation, Maróczy Bind, Geller Line | |
| Jul 26, 2024 | Sundac | ½–½ | Franc | Round 7: Sundac, Ivano - Franc, Borna | Indian Defense: London System | |
| Jul 25, 2024 | Colev | ½–½ | Sundac | Round 6: Colev, Ivor - Sundac, Ivano | Sicilian Defense: O'Kelly Variation, Maróczy Bind | |
| Jul 25, 2024 | Sundac | 1–0 | Kurtovic | Round 5: Sundac, Ivano - Kurtovic, Darko | Indian Defense: Wade-Tartakower Defense | |
| Jul 24, 2024 | Tomljanovic | ½–½ | Sundac | Round 4: Tomljanovic, Ivano - Sundac, Ivano | Slav Defense: Exchange Variation, Symmetrical Line | |
| Jul 23, 2024 | Mandaric | 0–1 | Sundac | Round 2: Mandaric, Fran - Sundac, Ivano | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jul 23, 2024 | Sundac | ½–½ | Zadro | Round 9: Sundac, Ivano - Zadro, Matej | Tarrasch Defense: Prague Variation | |
| Apr 5, 2024 | Kovac | ½–½ | Sundac | Round 6: Kovac, Petar - Sundac, Ivano | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Apr 3, 2024 | Sundac | 0–1 | Gal | Round 3: Sundac, Ivano - Gal, Andrej | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Apr 2, 2024 | Grgantov | 0–1 | Sundac | Round 2: Grgantov, Marin - Sundac, Ivano | Sicilian Defense: O'Kelly Variation, Venice System | |
| Apr 2, 2024 | Sundac | 1–0 | Horcicka | Round 1: Sundac, Ivano - Horcicka, Jan | Queen's Pawn Game: London System, with e6 | |
| Dec 16, 2024 | Sundac | 0–1 | Hitka | Round 1.1: Sundac, Ivano - Hitka, Dominik | Dutch Defense: Classical Variation | |
| Dec 16, 2024 | Sundac | 0–1 | Coicev | Round 5.1: Sundac, Ivano - Coicev, Matei-Andrei | Queen's Pawn Game: London System | |
| Dec 16, 2024 | Sundac | 0–1 | Kolimar | Round 8.2: Sundac, Ivano - Kolimar, Kristof Pal | Queen's Pawn Game: Symmetrical Variation | |
| Dec 16, 2024 | Sundac | 1–0 | Kresic | Round 11.2: Sundac, Ivano - Kresic, Vid | Queen's Pawn Game: London System | |
| Dec 16, 2024 | Hitka | ½–½ | Sundac | Round 1.2: Hitka, Dominik - Sundac, Ivano | Sicilian Defense: Closed, Traditional | |
| Dec 16, 2024 | Coicev | 1–0 | Sundac | Round 5.2: Coicev, Matei-Andrei - Sundac, Ivano | Pirc Defense: Kholmov System | |
| Dec 16, 2024 | Kolimar | 1–0 | Sundac | Round 8.1: Kolimar, Kristof Pal - Sundac, Ivano | King's Indian Attack | |
| Dec 16, 2024 | Kresic | 0–1 | Sundac | Round 11.1: Kresic, Vid - Sundac, Ivano | Queen's Pawn Game | |
| Dec 15, 2024 | Sundac | 0–1 | Zmaucar | Round 10: Sundac, Ivano - Zmaucar, Miha | Nimzo-Larsen Attack: Classical Variation | |
| Dec 14, 2024 | Sundac | 1–0 | Banh Gia Huy | Round 2: Sundac, Ivano - Banh Gia Huy | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Dec 14, 2024 | Kozlovic | 1–0 | Sundac | Round 3: Kozlovic, Jernej - Sundac, Ivano | Sicilian Defense: O'Kelly Variation, Venice System | |
| Dec 14, 2024 | Coicev | 1–0 | Sundac | Round 5: Coicev, Matei-Andrei - Sundac, Ivano | Sicilian Defense: Modern Variations, Main Line | |
| Sep 30, 2023 | Fishchuk | 1–0 | Sundac | 22nd European Youth Blitz Championship 2023 - O-16 | Van Geet Opening | |
| Aug 7, 2023 | Sundac | 1–0 | Sauti | WSTC | Sicilian Defense: Najdorf Variation | |
| Aug 6, 2023 | Sundac | 1–0 | Zhetpis | WSTC | King's Indian Defense: Fianchetto Variation, Immediate Fianchetto | |
| — | Sundac | 1–0 | Magen | WSTC | Sicilian Defense: Moscow Variation, Main Line | |
| — | Sundac | 0–1 | Gumularz | Round 3: Sundac, Ivano - Gumularz, Szymon | Zukertort Opening: Quiet System | |