| Apr 6, 2026 | Sidletskyi | 1–0 | Hecht | Grenke Chess Festival 2026 Open | Sicilian Defense: French Variation | |
| Apr 5, 2026 | Sidletskyi | 0–1 | Guliyev | Grenke Chess Festival 2026 Open | Sicilian Defense: French Variation | |
| Jan 4, 2026 | Sidletskyi | 0–1 | Vingris | Open A | English Opening: Symmetrical Variation, Ultra-Symmetrical Variation | |
| Jan 3, 2026 | Grygierczyk | ½–½ | Sidletskyi | Open A | French Defense: Advance Variation, Euwe Variation | |
| Jan 2, 2026 | Sidletskyi | 1–0 | Goderdzishvili | Open A | Caro-Kann Defense: Advance Variation | |
| Jan 2, 2026 | Balint | 1–0 | Sidletskyi | Open A | French Defense: Classical Variation, Burn Variation | |
| Dec 31, 2025 | Sidletskyi | 1–0 | Janik | Open A | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Dec 30, 2025 | Vitsiuk | 0–1 | Sidletskyi | Open A | French Defense: Winawer Variation, Bogoljubow Variation | |
| Dec 29, 2025 | Sidletskyi | 1–0 | Pasti | Open A | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Dec 28, 2025 | Smeryk | 0–1 | Sidletskyi | XXXVI Miedzynarodowy Festiwal Szachowy CRACOVIA 2025 Grupa A | French Defense: Advance Variation, Euwe Variation | |
| Dec 27, 2025 | Sidletskyi | 0–1 | Gaikwad | Open A | Sicilian Defense: Chekhover Variation | |
| Jun 20, 2025 | Sidletskyi | 0–1 | Pikatz | Round 3: Sidletskyi, Ivan - Pikatz, Frank | ? | |
| Jun 19, 2025 | Sidletskyi | ½–½ | Wilk | Round 2: Sidletskyi, Ivan - Wilk, Clemens | Caro-Kann Defense: Panov Attack | |
| Jun 19, 2025 | Frohneberg | 0–1 | Sidletskyi | Round 1: Frohneberg, Paul - Sidletskyi, Ivan | French Defense: Exchange Variation | |
| May 25, 2024 | Petrovskyi | 1–0 | Sidletskyi | DEM U18 2024 | Queen's Gambit Declined: Three Knights Variation | |
| May 24, 2024 | Fuhrmann | 0–1 | Sidletskyi | DEM U18 2024 | Catalan Opening: Closed | |
| May 23, 2024 | Sidletskyi | 0–1 | Eilenberg | DEM U18 2024 | Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line | |
| May 22, 2024 | Sidletskyi | 1–0 | Vortmeier | DEM U18 2024 | Scotch Game: Scotch Gambit, Advance Variation | |
| May 22, 2024 | Rempe | ½–½ | Sidletskyi | DEM U18 2024 | French Defense: Burn Variation | |
| May 21, 2024 | Sidletskyi | ½–½ | Bui | DEM U18 2024 | Tarrasch Defense: Symmetrical Variation | |
| May 20, 2024 | Haack | 1–0 | Sidletskyi | DEM U18 2024 | Catalan Opening: Closed | |
| May 19, 2024 | Sidletskyi | 1–0 | Hoffmann | DEM U18 2024 | Four Knights Game | |
| May 19, 2024 | Englert | 0–1 | Sidletskyi | DEM U18 2024 | French Defense: Tarrasch Variation, Chistyakov Defense | |
| May 4, 2024 | Sidletskyi | 0–1 | Frischmann | RLP-Schnellschachmeisterschaften Landau 2024 | Scandinavian Defense: Gubinsky-Melts Defense | |
| May 4, 2024 | Carow | 1–0 | Sidletskyi | RLP-Schnellschachmeisterschaften Landau 2024 | Nimzo-Indian Defense: Classical Variation | |
| May 4, 2024 | Sidletskyi | 1–0 | Lang | RLP-Schnellschachmeisterschaften Landau 2024 | English Opening: Symmetrical Variation, Botvinnik System | |
| May 4, 2024 | Bender | 0–1 | Sidletskyi | RLP-Schnellschachmeisterschaften Landau 2024 | Nimzo-Indian Defense: Classical Variation | |
| May 4, 2024 | Barzen | 1–0 | Sidletskyi | RLP-Schnellschachmeisterschaften Landau 2024 | French Defense: Advance Variation, Milner-Barry Gambit, Main Line | |
| Apr 1, 2024 | Sidletskyi | 1–0 | Fedorovsky | Grenke Chess Open 2024 | Sicilian Defense: Dragon Variation, Yugoslav Attack, Panov Variation | |
| Apr 1, 2024 | Wachinger | 1–0 | Sidletskyi | Grenke Chess Open 2024 | French Defense: Advance Variation, Euwe Variation | |
| Mar 31, 2024 | Sidletskyi | 1–0 | Boulos | Grenke Open | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Mar 31, 2024 | Schimnatkowski | * | Sidletskyi | new tournament description | ? | |
| Mar 30, 2024 | Sidletskyi | 0–1 | Scharfenberg | Grenke Open | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| Mar 30, 2024 | Engel | 1–0 | Sidletskyi | Grenke Chess Open 2024 | French Defense: Tarrasch Variation, Chistyakov Defense | |
| Oct 5, 2023 | Sidletskyi | 1–0 | Windmüller | Deutsche Ländermeisterschaft 2023 | Caro-Kann Defense: Maróczy Variation | |
| Oct 4, 2023 | Nied | ½–½ | Sidletskyi | Deutsche Ländermeisterschaft 2023 | French Defense: Tarrasch Variation, Morozevich Variation | |
| Oct 3, 2023 | Sidletskyi | 1–0 | Pikalow | Deutsche Ländermeisterschaft 2023 | Sicilian Defense: O'Kelly Variation, Maróczy Bind | |
| Oct 3, 2023 | Knüdel | ½–½ | Sidletskyi | Deutsche Ländermeisterschaft 2023 | French Defense: Winawer Variation, Alekhine Gambit, Kan Variation | |
| Oct 2, 2023 | Sidletskyi | ½–½ | Laux | Deutsche Ländermeisterschaft 2023 | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Oct 1, 2023 | Sidletskyi | 0–1 | Avdic | Deutsche Ländermeisterschaft 2023 | French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | |
| Oct 1, 2023 | Herrmann | 0–1 | Sidletskyi | Deutsche Ländermeisterschaft 2023 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Gufeld Gambit | |
| Aug 28, 2023 | Sidletskyi | 0–1 | Wenninger | WRTC | Caro-Kann Defense: Exchange Variation | |
| Aug 28, 2023 | Sidletskyi | 0–1 | Gukesh | WRTC | French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | |
| Aug 28, 2023 | Van Foreest | 1–0 | Sidletskyi | WRTC | Nimzo-Larsen Attack: Indian Variation | |
| Aug 27, 2023 | Sidletskyi | 1–0 | Arndt | WRTC | Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line | |
| Aug 27, 2023 | Sidletskyi | 0–1 | Alekseev | WRTC | Italian Game: Classical Variation, Greco Gambit | |
| Aug 27, 2023 | Moreby | 0–1 | Sidletskyi | WRTC | English Opening: Mikenas-Carls Variation | |
| Aug 26, 2023 | Sidletskyi | ½–½ | Aditya | WRTC | Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line | |
| Aug 26, 2023 | Sidletskyi | 1–0 | Magana | WRTC | Italian Game: Scotch Gambit, Max Lange Attack | |
| Aug 26, 2023 | Koch | 1–0 | Sidletskyi | WRTC | Queen's Gambit Declined: Semi-Tarrasch Defense | |
| Dec 18, 2022 | Sidletskyi | ½–½ | Dragnev | Katowice | Caro-Kann Defense: Maróczy Variation | |
| Dec 18, 2022 | Sidletskyi | ½–½ | De Filomeno | Katowice | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Dec 17, 2022 | Sidletskyi | ½–½ | Kjartansson | Katowice | Sicilian Defense: Najdorf Variation, Main Line | |
| Dec 17, 2022 | Navara | 1–0 | Sidletskyi | European Rapid Championship | Tarrasch Defense: Symmetrical Variation | |
| Dec 17, 2022 | Langheinrich | ½–½ | Sidletskyi | Katowice | French Defense: Exchange Variation | |
| Dec 16, 2022 | Sidletskyi | 0–1 | Fridman | European Blitz Chess Championship 2022 | Caro-Kann Defense: Maróczy Variation | |
| Dec 16, 2022 | Sidletskyi | 0–1 | Walter | Katowice | Sicilian Defense: Kan Variation, Modern Variation | |
| Dec 16, 2022 | Sidletskyi | ½–½ | Haydon | Katowice | Caro-Kann Defense: Maróczy Variation | |
| Dec 16, 2022 | Sidletskyi | 0–1 | Wisniewski | ebrcc2022 | Alekhine Defense: Modern Variation, Alburt Variation | |
| Dec 16, 2022 | Sidletskyi | 0–1 | Kacprzak | ebrcc2022 | Sicilian Defense: Najdorf Variation, Main Line | |
| Dec 16, 2022 | Fridman | 1–0 | Sidletskyi | European Blitz Chess Championship 2022 | Catalan Opening: Closed | |
| Dec 16, 2022 | Walter | 0–1 | Sidletskyi | Katowice | Sicilian Defense: Grand Prix Attack | |
| Dec 16, 2022 | Haydon | 1–0 | Sidletskyi | Katowice | Zukertort Opening: Sicilian Invitation | |
| Dec 16, 2022 | Wisniewski | 1–0 | Sidletskyi | ebrcc2022 | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Dec 16, 2022 | Kacprzak | 1–0 | Sidletskyi | ebrcc2022 | French Defense: Advance Variation, Euwe Variation | |
| Aug 10, 2022 | Bruchmann | ½–½ | Sidletskyi | Letni Praha 2022 | French Defense: Schlechter Variation | |
| Aug 7, 2022 | Sidletskyi | 0–1 | Kvaloy | Letni Praha 2022 | Italian Game: Scotch Gambit, Max Lange Attack | |
| Aug 7, 2022 | Ranaldi | ½–½ | Sidletskyi | Letni Praha 2022 | Queen's Gambit Declined: Semi-Tarrasch Defense | |
| Aug 6, 2022 | Sidletskyi | 1–0 | Hrabusa | Letni Praha 2022 | Sicilian Defense: Najdorf Variation | |
| Jun 11, 2022 | Trushko | ½–½ | Sidletskyi | DEM U16 2022 | Nimzo-Indian Defense: Classical Variation, Noa Variation | |
| Jun 10, 2022 | Sidletskyi | ½–½ | Farokhi | DEM U16 2022 | Sicilian Defense: Chekhover Variation | |
| Jun 9, 2022 | Petrovskyi | ½–½ | Sidletskyi | DEM U16 2022 | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Jun 8, 2022 | Sidletskyi | 1–0 | Rempe | DEM U16 2022 | King's Indian Defense: Makogonov Variation | |
| Jun 8, 2022 | Bakiev | 1–0 | Sidletskyi | DEM U16 2022 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jun 7, 2022 | Laux | ½–½ | Sidletskyi | DEM U16 2022 | Sicilian Defense: Closed, Traditional | |
| Jun 6, 2022 | Sidletskyi | * | Mimkes | DEM U16 2022 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jun 5, 2022 | Sidletskyi | * | Heinrich | DEM U16 2022 | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jun 5, 2022 | Jaskulski | 0–1 | Sidletskyi | DEM U16 2022 | Sicilian Defense: Accelerated Dragon, Maróczy Bind, Gurgenidze Variation | |
| Jul 16, 2021 | Sidletskyi | 1–0 | Kulkovets Maksim | Kiev Spring Open | Rapid | ? | |