| — | Kovacik | 0–1 | Gay | exe:Slovakia Open | English Opening: King's English Variation, Two Knights Variation | |
| Sep 21, 2025 | Srnak | ½–½ | Kovacik | exe2025 | Slav Defense: Exchange Variation | |
| Sep 20, 2025 | Kovacik | 1–0 | Benci | exe2025 | English Opening: Caro-Kann Defensive System | |
| Sep 19, 2025 | Buday | ½–½ | Kovacik | exe2025 | Caro-Kann Defense: Tartakower Variation | |
| Sep 18, 2025 | Kovacik | 0–1 | Antal | exe2025 | Queen's Pawn Game: Accelerated London System | |
| Sep 17, 2025 | Durana | 1–0 | Kovacik | exe: | Caro-Kann Defense: Accelerated Panov Attack, Modern Variation | |
| Sep 16, 2025 | Kovacik | 0–1 | Striskova | exe:Slovakia open Bratislava 25 | Queen's Pawn Game: Accelerated London System, Steinitz Countergambit | |
| Sep 15, 2025 | Slaba | ½–½ | Kovacik | exe:Slovakia open Bratislava 25 | Indian Defense | |
| Sep 14, 2025 | Kovacik | 1–0 | Rexova | exe2025 | Queen's Pawn Game: Accelerated London System | |
| Sep 13, 2025 | Brnusak | 1–0 | Kovacik | exe:Slovakia open Bratislava 25 | Caro-Kann Defense: Breyer Variation | |
| Jun 15, 2025 | Turis | 1–0 | Kovacik | LJ 2025 | Slav Defense: Quiet Variation | |
| Jun 15, 2025 | Kovacik | ½–½ | Durovka | LJ 2025 | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 | |
| Jun 14, 2025 | Gollner | 0–1 | Kovacik | LJ 2025 | Caro-Kann Defense: Panov Attack | |
| Jun 14, 2025 | Kovacik | ½–½ | Mikula | LJ 2025 | Sicilian Defense: Accelerated Dragon, Maróczy Bind, Breyer Variation | |
| Jun 13, 2025 | Hurtuk | ½–½ | Kovacik | LJ 2025 | Caro-Kann Defense: Exchange Variation | |
| Jun 13, 2025 | Kovacik | 1–0 | Zentko | LJ 2025 | English Opening: Symmetrical Variation, Fianchetto Variation | |
| Jun 12, 2025 | Pekar | 1–0 | Kovacik | LJ 2025 | Caro-Kann Defense: Two Knights Attack | |
| Aug 17, 2024 | Golubovic | 1–0 | Kovacik | EYCC 2024 Rapid O12 | Benoni Defense: Old Benoni | |
| Aug 17, 2024 | Matiievskyi | 1–0 | Kovacik | EYCC 2024 Rapid O12 | Benoni Defense: Old Benoni | |
| May 10, 2024 | Kovacik | 1–0 | Suster | Senec | Queen's Pawn Game | |
| May 10, 2024 | Kovacik | 1–0 | Ksenzigh | Senec | Queen's Pawn Game: Accelerated London System | |
| May 10, 2024 | Kovacik | 1–0 | Buday | Senec | Queen's Pawn Game: Accelerated London System, Steinitz Countergambit | |
| May 10, 2024 | Pitak | 0–1 | Kovacik | Senec | Sicilian Defense: Accelerated Dragon, Exchange Variation | |
| May 10, 2024 | Matejka | 1–0 | Kovacik | Senec | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| May 10, 2024 | Vesely | ½–½ | Kovacik | Senec | Sicilian Defense: Grand Prix Attack | |
| May 10, 2024 | Pisarcik | 0–1 | Kovacik | Senec | Sicilian Defense: Old Sicilian | |
| Sep 22, 2024 | Kovacik | 1–0 | Vinarcik | exe:Slovakia Open | English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation | |
| Sep 21, 2024 | Vasko | ½–½ | Kovacik | exe:Slovakia Open | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Sep 20, 2024 | Kovacik | 0–1 | Mandak | exe:Slovakia Open | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| Sep 19, 2024 | Kucera | ½–½ | Kovacik | exe:Slovakia Open | Benoni Defense: Old Benoni | |
| Sep 18, 2024 | Kovacik | 1–0 | Smidova | exe:Slovakia Open | English Opening: Anglo-Dutch Defense | |
| Sep 17, 2024 | Hoogeveen | ½–½ | Kovacik | exe:Slovakia Open | King's Indian Attack: French Variation | |
| Sep 16, 2024 | Kovacik | ½–½ | Lacrosse | exe:Slovakia Open | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Sep 15, 2024 | Krajnak | 1–0 | Kovacik | exe:Slovakia Open | English Opening: Symmetrical Variation | |
| Jun 18, 2024 | Kovacik | 0–1 | Varga | MSR amaterov | Queen's Pawn Game: Accelerated London System | |
| Jun 18, 2024 | Rychly | 0–1 | Kovacik | MSR amaterov | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Jun 17, 2024 | Kovacik | ½–½ | Vokal | MSR amaterov | Queen's Pawn Game: Accelerated London System | |
| Jun 17, 2024 | Kulich | ½–½ | Kovacik | MSR amaterov | Benoni Defense: Old Benoni | |
| Jun 16, 2024 | Kovacik | ½–½ | Kopecny | MSR amaterov | Slav Defense | |
| Jun 16, 2024 | Zvarik | 1–0 | Kovacik | MSR amaterov | Bird Opening: Dutch Variation | |
| Jun 15, 2024 | Kovacik | 1–0 | Ondras | MSR amaterov | Indian Defense | |
| Jun 15, 2024 | Straka | ½–½ | Kovacik | MSR amaterov | English Opening: Symmetrical Variation, Two Knights Variation | |
| Sep 30, 2023 | Kovacik | 0–1 | Rusu | 22nd European Youth Blitz Championship 2023 - O-10 | Indian Defense | |
| Sep 30, 2023 | Kovacik | 0–1 | Pasula | 22nd European Youth Blitz Championship 2023 - O-10 | English Opening: Anglo-Indian Defense, Hedgehog System | |
| Sep 30, 2023 | Kovacik | 0–1 | Gazic | 22nd European Youth Blitz Championship 2023 - O-10 | English Opening: King's English Variation, Two Knights Variation, Reversed Dragon | |
| — | Kovacik | ½–½ | Ilko-Toth | Round 6: Kovacik, Oliver - Ilko-Toth, Andras | Queen's Pawn Game: Accelerated London System | |
| — | Kovacik | ½–½ | Velim | Round 10: Kovacik, Oliver - Velim, Vojtech | Indian Defense | |
| — | Kopecny | 1–0 | Kovacik | Round 7: Kopecny, Filip - Kovacik, Oliver | Caro-Kann Defense: Panov Attack | |
| — | Velim | 1–0 | Kovacik | Round 9: Velim, Vojtech - Kovacik, Oliver | Sicilian Defense: Delayed Alapin Variation, with e6 | |
