| Jul 16, 2025 | Bednar | 1–0 | Koska | Piestany | King's Indian Defense: Orthodox Variation | |
| Jul 15, 2025 | Koska | 1–0 | Klimanek | Piestany | King's Indian Defense: Fianchetto Variation, Panno Variation | |
| Jul 14, 2025 | Papp | 1–0 | Koska | Piestany | Benko Gambit Accepted: King Walk Variation | |
| Jul 13, 2025 | Koska | 1–0 | Muller | Piestany | Nimzo-Larsen Attack: Indian Variation | |
| Jul 12, 2025 | Magierski | 0–1 | Koska | Piestany | Benko Gambit Accepted: Fully Accepted Variation | |
| Jul 9, 2025 | Papay | * | Koska | Piestany | ? | |
| Jul 7, 2025 | Koska | ½–½ | Durana | Piestany | Indian Defense | |
| Sep 9, 2024 | Koska | ½–½ | Jura | goral | Petrov's Defense | |
| Sep 9, 2024 | Stelmak | ½–½ | Koska | goral | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| Sep 8, 2024 | Koska | 1–0 | Danada | goral | Nimzo-Larsen Attack: Classical Variation | |
| Sep 8, 2024 | Nemergut | 1–0 | Koska | goral | King's Indian Defense: Fianchetto Variation, Yugoslav Variation | |
| Sep 7, 2024 | Koska | ½–½ | Verba | goral | Nimzo-Larsen Attack: Classical Variation | |
| Sep 7, 2024 | Recky | 0–1 | Koska | goral | French Defense: Advance Variation, Paulsen Attack | |
| Sep 6, 2024 | Koska | 1–0 | Duda | goral | King's Indian Attack | |
| Jun 9, 2024 | Sitarcik | ½–½ | Koska | Reinter Open | King's Indian Defense: Orthodox Variation | |
| Jun 8, 2024 | Koska | ½–½ | Samu | Reinter Open | Zukertort Opening: Sicilian Invitation | |
| Jul 17, 2024 | Hookham | 0–1 | Koska | Slovakia chess open PN 24 | French Defense: Exchange Variation | |
| Jul 16, 2024 | Dovbysh | ½–½ | Koska | Slovakia chess open PN 24 | French Defense: Advance Variation, Euwe Variation | |
| Jul 15, 2024 | Koska | ½–½ | Har-Even | Slovakia chess open PN 24 | Zukertort Opening: Pirc Invitation | |
| Jul 14, 2024 | Andre | ½–½ | Koska | Slovakia chess open PN 24 | Owen Defense | |
| Jul 13, 2024 | Koska | 1–0 | Siraj | Slovakia chess open PN 24 | English Opening: Agincourt Defense | |
| Jul 12, 2024 | Libich | 0–1 | Koska | Slovakia chess open PN 24 | French Defense: Classical Variation, Burn Variation, Morozevich Line | |
| Jul 11, 2024 | Koska | 1–0 | Bednar | Slovakia chess open PN 24 | King's Indian Attack: Sicilian Variation | |
| Jul 10, 2024 | Muhamova | 0–1 | Koska | Slovakia chess open PN 24 | Benko Gambit Accepted: Pawn Return Variation | |
| Jun 18, 2024 | Koska | ½–½ | Ostruzlik | MSR amaterov | Zukertort Opening | |
| Jun 18, 2024 | Ondreicka | ½–½ | Koska | MSR amaterov | Bird Opening | |
| Jun 17, 2024 | Koska | 0–1 | Zvarik | MSR amaterov | Italian Game: Giuoco Piano | |
| Jun 17, 2024 | Bracok | ½–½ | Koska | MSR amaterov | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Jun 16, 2024 | Koska | ½–½ | Zentko | MSR amaterov | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jun 16, 2024 | Koren | 0–1 | Koska | MSR amaterov | French Defense: La Bourdonnais Variation | |
| Jun 15, 2024 | Koska | 1–0 | Foldesi | MSR amaterov | King's Indian Attack | |
| Jun 15, 2024 | Panko | 1–0 | Koska | MSR amaterov | French Defense: Wing Gambit | |
| Oct 29, 2023 | Mikova | ½–½ | Koska | Dorastenecka liga | Indian Defense: Tartakower Attack | |
| Oct 29, 2023 | Janik | 1–0 | Koska | Dorastenecka liga | English Opening: Symmetrical Variation, Ultra-Symmetrical Variation | |
| Oct 28, 2023 | Koska | 0–1 | Shykhnenko | MSR DL | King's Indian Attack: Spassky Variation | |
| Oct 28, 2023 | Janovec | 0–1 | Koska | MSR DL | Benoni Defense | |
| Oct 27, 2023 | Koska | 0–1 | Lovcican | Dorastenecka liga | King's Indian Attack: Symmetrical Defense | |
| Oct 27, 2023 | Paluska | ½–½ | Koska | Dorastenecka liga | Rapport-Jobava System | |
| Oct 26, 2023 | Koska | ½–½ | Bilik | Dorastenecka liga | English Opening: Symmetrical Variation, Duchamp Variation | |
| Sep 30, 2023 | Koska | 0–1 | Skrbec | 22nd European Youth Blitz Championship 2023 - O-16 | King's Indian Attack: Wahls Defense | |
| Sep 30, 2023 | Skrbec | ½–½ | Koska | 22nd European Youth Blitz Championship 2023 - O-16 | English Opening: Symmetrical Variation, Anti-Benoni Variation | |
| Sep 9, 2023 | Koska | 0–1 | Rybka | MSR 2023 Blitz | Zukertort Opening: Sicilian Invitation | |
| Aug 7, 2023 | Victor | 1–0 | Koska | WSTC | Benko Gambit Accepted: King Walk Variation | |
| Aug 6, 2023 | Gaybullayev | 0–1 | Koska | WSTC | London System | |
| Aug 4, 2023 | Koska | 1–0 | Andziswa | WSTC | Philidor Defense | |
| Jul 21, 2022 | Koska | 0–1 | Chrz | rapid | Zukertort Opening: Sicilian Invitation | |
| Jul 21, 2022 | Melichar | 1–0 | Koska | rapid | Rapport-Jobava System | |
| Jul 20, 2022 | Koska | 1–0 | Vokoun | rapid | Zukertort Opening: Sicilian Invitation | |
| Jul 20, 2022 | Koska | 0–1 | Akesson | rapid | King's Indian Attack: Spassky Variation | |
| Jul 20, 2022 | Zdrazil | 0–1 | Koska | rapid | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| — | Koska | 1–0 | Morocho Garzon | WSTC | King's Indian Attack: Sicilian Variation | |
| — | Koska | 1–0 | Ahnaf Rashid | WSTC | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| — | Koska | 0–1 | Kuznecova | WSTC | King's Indian Attack: Keres Variation | |
| — | Radnaev | 1–0 | Koska | WSTC | King's Indian Defense: Fianchetto Variation, Debrecen Defense | |
| — | Liu | 1–0 | Koska | WSTC | Rapport-Jobava System | |
