| May 29, 2026 | Iwan | ½–½ | Diachek | DMPJ - I Liga 2026 | Ruy Lopez: Closed, Anti-Marshall | |
| May 28, 2026 | Diachek | ½–½ | Jasiulewicz | DMPJ - I Liga 2026 | English Opening: Symmetrical Variation, Three Knights Variation | |
| May 26, 2026 | Diachek | 1–0 | Maj | DMPJ - I Liga 2026 | Sicilian Defense: Taimanov Variation | |
| May 25, 2026 | Etut | 0–1 | Diachek | Druzynowe Mistrzostwa Polski Juniorow - I Liga 2026 | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| May 24, 2026 | Diachek | 1–0 | Ptaszynski | DMPJ - I Liga 2026 | Sicilian Defense: Najdorf Variation, Adams Attack | |
| May 21, 2026 | Rajlich | ½–½ | Diachek | DMPJ - I Liga 2026 | Sicilian Defense: Kalashnikov Variation | |
| May 21, 2026 | Kraczek | ½–½ | Diachek | DMPJ - I Liga 2026 | Van Geet Opening: Napoleon Attack | |
| May 21, 2026 | Diachek | ½–½ | Stachowiak | DMPJ - I Liga 2026 | Caro-Kann Defense: Two Knights Attack | |
| May 21, 2026 | Grech | 0–1 | Diachek | Druzynowe Mistrzostwa Polski Juniorow - I Liga 2026 | Nimzo-Indian Defense: Kmoch Variation | |
| Apr 16, 2026 | Tulchynskyi | 1–0 | Diachek | EICC 2026 | Ruy Lopez: Closed, Anti-Marshall | |
| Apr 15, 2026 | Diachek | 1–0 | Pietruszewski | EIIC 2026 | English Opening: Romanishin Gambit | |
| Apr 14, 2026 | Zareba | ½–½ | Diachek | EIIC 2026 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Apr 13, 2026 | Diachek | ½–½ | Walaszczyk | EIIC 2026 | English Opening: Neo-Catalan | |
| Apr 12, 2026 | Hury | ½–½ | Diachek | EIIC 2026 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Apr 10, 2026 | Diachek | 0–1 | Sipila | EICC 2026 | English Opening: King's English Variation, Kramnik-Shirov Counterattack | |
| Apr 9, 2026 | Tarhan | ½–½ | Diachek | EICC 2026 | King's Indian Attack: Keres Variation | |
| Apr 8, 2026 | Diachek | ½–½ | Druska | EICC 2026 | English Opening: Agincourt Defense | |
| Apr 7, 2026 | Guzik | 0–1 | Diachek | EICC 2026 | Nimzo-Indian Defense: Leningrad Variation | |
| Feb 18, 2026 | Diachek | 0–1 | Deuer | Round 7: Diachek, Andrii - Deuer, Marius | Caro-Kann Defense: Exchange Variation | |
| Feb 17, 2026 | Balint | ½–½ | Diachek | Round 6: Balint, Peter - Diachek, Andrii | King's Indian Attack: Yugoslav Variation | |
| Feb 17, 2026 | Diachek | ½–½ | Czernek | Round 5: Diachek, Andrii - Czernek, Tymon | English Opening: King's English Variation, Four Knights Variation, Quiet Line | |
| Feb 15, 2026 | Socko | 1–0 | Diachek | Round 2: Socko, Bartosz - Diachek, Andrii | Catalan Opening | |
| Feb 8, 2026 | Kutsanyan | ½–½ | Diachek | Round 7: Kutsanyan, Andranik - Diachek, Andrii | Sicilian Defense: Snyder Variation | |
| Feb 8, 2026 | Diachek | 1–0 | Kovacs | Round 6: Diachek, Andrii - Kovacs, Kristof | English Opening: King's English Variation, Three Knights System | |
| Feb 7, 2026 | Sertbay | ½–½ | Diachek | Round 5: Sertbay, Huseyin - Diachek, Andrii | Nimzo-Indian Defense: Classical Variation | |
| Feb 7, 2026 | Diachek | 1–0 | Wolak | Round 4: Diachek, Andrii - Wolak, Maciej | Ruy Lopez: Morphy Defense | |
| Feb 6, 2026 | Onodi | ½–½ | Diachek | Round 3: Onodi, Miklos - Diachek, Andrii | Rapport-Jobava System | |
| Feb 6, 2026 | Diachek | ½–½ | Biro | Round 2: Diachek, Andrii - Biro, Beata | Réti Opening: Anglo-Slav Variation, Gurevich System | |
| Feb 5, 2026 | Borsavolgyi | 0–1 | Diachek | Round 1: Borsavolgyi, Tamas - Diachek, Andrii | Bird Opening: Dutch Variation | |
| Jul 27, 2025 | Diachek | ½–½ | Krol | A | Ruy Lopez: Closed, Breyer Defense, Zaitsev Hybrid | |
| Jul 26, 2025 | Ratajczak | 0–1 | Diachek | A | Zukertort Opening | |
| Jul 25, 2025 | Diachek | 0–1 | Sengupta | A | French Defense: Exchange Variation | |
| Jul 24, 2025 | Neuhoff | 0–1 | Diachek | A | King's Indian Attack: Yugoslav Variation | |
| Jul 23, 2025 | Diachek | ½–½ | Zareba | A | English Opening: King's English Variation, Two Knights Variation, Keres Variation | |
| Jul 22, 2025 | Perets | 0–1 | Diachek | A | Ruy Lopez: Morphy Defense, Tarrasch Variation | |
| Jul 21, 2025 | Diachek | ½–½ | Hury | A | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jul 20, 2025 | Kaliszuk | ½–½ | Diachek | A | English Opening: Symmetrical Variation | |
| Jul 19, 2025 | Diachek | ½–½ | Kaminska | A | Ruy Lopez: Closed, Anti-Marshall | |
| Jun 22, 2025 | Rutkowski | 0–1 | Diachek | DMPJ 1 liga 2025 | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Jun 21, 2025 | Diachek | 1–0 | Staniczek | DMPJ 1 liga 2025 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Jun 20, 2025 | Mrozowski | 0–1 | Diachek | DMPJ 1 liga 2025 | Sicilian Defense: Kalashnikov Variation | |
| Jun 19, 2025 | Diachek | 1–0 | Witczak | DMPJ 1 liga 2025 | Sicilian Defense: Moscow Variation | |
| Jun 18, 2025 | Diachek | 0–1 | Pekala | DMPJ 1 liga 2025 | Nimzo-Indian Defense: Classical Variation | |
| Jun 17, 2025 | Rozanski | 1–0 | Diachek | DMPJ 1 liga 2025 | English Opening: King's English Variation, Taimanov Variation | |
| Jun 16, 2025 | Dziuba | 0–1 | Diachek | DMPJ 1 liga 2025 | Sicilian Defense: Closed, Anti-Sveshnikov Variation, with d6 | |
| Jun 15, 2025 | Diachek | 1–0 | Markowski | DMPJ 1 liga 2025 | English Opening: King's English Variation, Three Knights System | |
| Jun 14, 2025 | Sakharchuk | 0–1 | Diachek | DMPJ 1 liga 2025 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jun 1, 2025 | Diachek | 1–0 | Biro | Zalakaros2025 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| May 31, 2025 | Ostovic | 1–0 | Diachek | Zalakaros2025 | Queen's Gambit Declined | |
| May 30, 2025 | Varadi | ½–½ | Diachek | Zalakaros2025 | Sicilian Defense: Kalashnikov Variation | |
| May 29, 2025 | Diachek | 1–0 | Aczel | Zalakaros2025 | Caro-Kann Defense: Endgame Offer | |
| May 28, 2025 | Diachek | ½–½ | Egresi | Zalakaros2025 | Sicilian Defense: Taimanov Variation | |
| May 27, 2025 | Haselbach | 0–1 | Diachek | Zalakaros2025 | English Opening: King's English Variation, Taimanov Variation | |
| May 26, 2025 | Vegh | ½–½ | Diachek | Zalakaros2025 | Sicilian Defense: Smith-Morra Gambit | |
| Feb 28, 2025 | Isik | ½–½ | Diachek | PICF 2025 - KAREL JANEČEK Open | King's Indian Attack | |
| Jan 17, 2025 | Diachek | 0–1 | Chan | praha2025 | Sicilian Defense: Taimanov Variation, Modern Line | |
| Jan 16, 2025 | Sokhor | 0–1 | Diachek | praha2025 | Queen's Gambit Declined: Harrwitz Attack, Fianchetto Defense | |
| Jan 15, 2025 | Diachek | ½–½ | Lalic | praha2025 | French Defense: Tarrasch Variation, Chistyakov Defense | |
| Jan 14, 2025 | Marek | ½–½ | Diachek | praha2025 | Queen's Pawn Game: Colle System | |
| Jan 13, 2025 | Diachek | 1–0 | Markina | praha2025 | Slav Defense | |
| Aug 25, 2024 | Sernecki | ½–½ | Diachek | 60. Jubileuszowy Miedzynarodowy Festiwal Szachowy Akiby Rubinsteina - OPEN A | Queen's Gambit Declined: Harrwitz Attack | |
| Aug 24, 2024 | Diachek | 1–0 | Hury | 60. Jubileuszowy Miedzynarodowy Festiwal Szachowy Akiby Rubinsteina - OPEN A | Ruy Lopez: Exchange Variation, Keres Variation | |
| Aug 23, 2024 | Zawadzka | 1–0 | Diachek | 60. Jubileuszowy Miedzynarodowy Festiwal Szachowy Akiby Rubinsteina - OPEN A | Scotch Game: Potter Variation | |
| Aug 22, 2024 | Diachek | ½–½ | Rog | 60. Jubileuszowy Miedzynarodowy Festiwal Szachowy Akiby Rubinsteina - OPEN A | Ruy Lopez: Cozio Defense | |
| Aug 21, 2024 | Alimbetov | 0–1 | Diachek | 60. Jubileuszowy Miedzynarodowy Festiwal Szachowy Akiby Rubinsteina - OPEN A | King's Indian Attack | |
| Aug 20, 2024 | Diachek | ½–½ | Cyborowski | 60. Jubileuszowy Miedzynarodowy Festiwal Szachowy Akiby Rubinsteina - OPEN A | Sicilian Defense: Taimanov Variation, Modern Line | |
| Aug 19, 2024 | Mastrovasilis | ½–½ | Diachek | 60. Jubileuszowy Miedzynarodowy Festiwal Szachowy Akiby Rubinsteina - OPEN A | Nimzo-Indian Defense: Sämisch Variation, Keres Variation | |
| Aug 18, 2024 | Diachek | 1–0 | Karut | rubinstein24-a1 | Sicilian Defense: Richter-Rauzer Variation | |
| Aug 17, 2024 | Wandor | 0–1 | Diachek | rubinstein24-a1 | English Opening: King's English Variation, Three Knights System | |
| Aug 14, 2024 | Diachek | 0–1 | Stepinski | anderssenA2024 | Caro-Kann Defense: Tartakower Variation | |
| Aug 13, 2024 | Przybylski | 1–0 | Diachek | anderssenA2024 | Ruy Lopez: Closed, Anti-Marshall | |
| Aug 12, 2024 | Diachek | 1–0 | Kukula | anderssenA2024 | Bogo-Indian Defense: Nimzowitsch Variation | |
| Aug 12, 2024 | Zareba | 1–0 | Diachek | anderssenA2024 | Sicilian Defense: Najdorf Variation, English Attack | |
| Aug 11, 2024 | Diachek | ½–½ | Adamczewski | anderssenA2024 | French Defense: Tarrasch Variation, Modern System | |
| Aug 10, 2024 | Mohylnyi | 1–0 | Diachek | anderssenA2024 | Bogo-Indian Defense: Retreat Variation | |
| Aug 9, 2024 | Diachek | 1–0 | Rzewucki | anderssenA2024 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Aug 9, 2024 | Zajac | ½–½ | Diachek | anderssenA2024 | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Aug 8, 2024 | Diachek | ½–½ | Rozanski | anderssenA2024 | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Aug 3, 2024 | Diachek | 0–1 | Golis | Rapid C12 | Queen's Gambit Declined: Orthodox Defense, Swiss, Carlsbad Variation | |
| Aug 3, 2024 | Bury | 1–0 | Diachek | Rapid C12 | Sicilian Defense: Moscow Variation | |
| Aug 3, 2024 | Pawlicz | 0–1 | Diachek | Rapid C12 | Queen's Indian Defense: Capablanca Variation | |
| Aug 3, 2024 | Rutkowski | 0–1 | Diachek | Rapid C12 | English Opening: King's English Variation | |
| Aug 2, 2024 | Diachek | 1–0 | Sakharchuk | Rapid C12 | French Defense: Tarrasch Variation, Modern System | |
| Aug 2, 2024 | Diachek | 1–0 | Bednarek | Rapid C12 | Sicilian Defense: Najdorf Variation | |
| Aug 2, 2024 | Kolasinski | 0–1 | Diachek | Rapid C12 | Nimzo-Indian Defense: Sämisch Variation | |
| Aug 2, 2024 | Chiszko | ½–½ | Diachek | Rapid C12 | English Opening: King's English Variation | |
| Jun 20, 2024 | Diachek | 0–1 | Nakonechnyi | Round 1: Diachek, Andriy - Nakonechnyi, Oleksii | Sicilian Defense: Moscow Variation, Main Line | |
| Jun 20, 2024 | Diachek | 1–0 | Negrean | Round 3: Diachek, Andriy - Negrean, Andrei | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Jun 20, 2024 | Diachek | ½–½ | Golubovic | Round 5: Diachek, Andriy - Golubovic, Erik | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Jun 20, 2024 | Diachek | 1–0 | Shilon Rahav | Round 7: Diachek, Andriy - Shilon Rahav, Eliran | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Jun 20, 2024 | Yilmaz | ½–½ | Diachek | Round 2: Yilmaz, Baver - Diachek, Andriy | Ruy Lopez: Closed, Martinez Variation | |
| Jun 20, 2024 | Belin | 0–1 | Diachek | Round 4: Belin, Anton - Diachek, Andriy | Sicilian Defense: Chekhover Variation | |
| Jun 20, 2024 | Hangay | 0–1 | Diachek | Round 6: Hangay, Oliver - Diachek, Andriy | Ruy Lopez: Closed, Anti-Marshall | |
| Nov 26, 2024 | Diachek | 1–0 | Zhandos | Round 11: Diachek, Andrii - Zhandos, Akarys | Nimzo-Indian Defense: Classical Variation | |
| Nov 25, 2024 | Tona | 0–1 | Diachek | Round 10: Tona, Leonardo - Diachek, Andrii | Indian Defense: Knights Variation | |
| Nov 24, 2024 | Diachek | 0–1 | Marchand | Round 9: Diachek, Andrii - Marchand, Calix | Sicilian Defense: Taimanov Variation, Szén Variation | |
| Nov 23, 2024 | Stepanyan | 1–0 | Diachek | Round 8: Stepanyan, Davit - Diachek, Andrii | Bogo-Indian Defense: Retreat Variation | |
| Nov 22, 2024 | Diachek | ½–½ | Mamikonyan | Round 7: Diachek, Andrii - Mamikonyan, Artem T | Caro-Kann Defense: Maróczy Variation | |
| Nov 20, 2024 | Fulgentini | ½–½ | Diachek | Round 6: Fulgentini, Edoardo - Diachek, Andrii | Ruy Lopez: Closed, Bogoljubow Variation | |
| Nov 19, 2024 | Diachek | 1–0 | Gao | Round 5: Diachek, Andrii - Gao, Arthur | Sicilian Defense: Lasker-Pelikan Variation, Retreat Variation | |