| Jun 30, 2026 | Macho | ½–½ | Ondrejat | Round 4: Macho, Miloslav - Ondrejat, Miroslav | English Opening: King's English Variation | |
| Jun 28, 2026 | Stanke | 1–0 | Ondrejat | Round 2: Stanke, Vilem - Ondrejat, Miroslav | Sicilian Defense: Najdorf Variation, English Attack | |
| Jun 27, 2026 | Ondrejat | 1–0 | Novy | Round 1: Ondrejat, Miroslav - Novy, Jaroslav | English Opening: Anglo-Indian Defense, Hedgehog System | |
| Jun 23, 2026 | Ondrejat | 0–1 | Kopta | Round 3: Ondrejat, Miroslav - Kopta, Pavel | Indian Defense: Anti-Nimzo-Indian | |
| May 17, 2026 | Misek | ½–½ | Ondrejat | Round 9: Misek, Jan - Ondrejat, Miroslav | Sicilian Defense: Alapin Variation, Barmen Defense | |
| May 17, 2026 | Ondrejat | ½–½ | Nikolaev | Round 8: Ondrejat, Miroslav - Nikolaev, Daniil | Grünfeld Defense: Three Knights Variation, Burille Variation | |
| May 17, 2026 | Bajcar | 1–0 | Ondrejat | Round 7: Bajcar, Tomas - Ondrejat, Miroslav | French Defense: Advance Variation, Paulsen Attack | |
| May 17, 2026 | Brichacek | 0–1 | Ondrejat | Round 5: Brichacek, Miroslav - Ondrejat, Miroslav | Rapport-Jobava System | |
| May 17, 2026 | Ondrejat | 1–0 | Smrcka | Round 6: Ondrejat, Miroslav - Smrcka, Jan | Semi-Slav Defense: Main Line | |
| May 17, 2026 | Ondrejat | ½–½ | Pazdera | Round 4: Ondrejat, Miroslav - Pazdera, Tomas | Grünfeld Defense: Exchange Variation | |
| May 17, 2026 | Burdalev | 1–0 | Ondrejat | Round 3: Burdalev, Kirill - Ondrejat, Miroslav | King's Indian Defense: Fianchetto Variation | |
| May 17, 2026 | Ondrejat | 1–0 | Panos | Round 2: Ondrejat, Miroslav - Panos, Jan | Nimzo-Indian Defense: Classical Variation, Noa Variation | |
| May 17, 2026 | Strejcek | 0–1 | Ondrejat | Round 1: Strejcek, Jiri - Ondrejat, Miroslav | Sicilian Defense: Najdorf Variation | |
| May 16, 2026 | Novotny | 1–0 | Ondrejat | Round 13: Novotny, Dominik - Ondrejat, Miroslav | Sicilian Defense: Moscow Variation | |
| May 16, 2026 | Ondrejat | 1–0 | Rataj | Round 12: Ondrejat, Miroslav - Rataj, Petr | King's Indian Defense: Orthodox Variation, Positional Defense, Closed Line | |
| May 16, 2026 | Kubat | 0–1 | Ondrejat | Round 11: Kubat, Jonas - Ondrejat, Miroslav | Pirc Defense: Austrian Attack, Unzicker Attack | |
| May 16, 2026 | Strejcek | 1–0 | Ondrejat | Round 10: Strejcek, Jiri - Ondrejat, Miroslav | Sicilian Defense: Closed, Traditional | |
| May 16, 2026 | Ondrejat | 1–0 | Macho | Round 9: Ondrejat, Miroslav - Macho, Miloslav | Queen's Indian Defense: Kasparov Variation | |
| May 16, 2026 | Janousek | ½–½ | Ondrejat | Round 8: Janousek, Ladislav - Ondrejat, Miroslav | English Opening: Anglo-Dutch Defense | |
| May 16, 2026 | Ondrejat | 0–1 | Benes | Round 7: Ondrejat, Miroslav - Benes, Jan Jeronym | English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation | |
| May 16, 2026 | Zavurkova | 1–0 | Ondrejat | Round 6: Zavurkova, Monika - Ondrejat, Miroslav | Nimzo-Indian Defense | |
| May 16, 2026 | Ondrejat | 0–1 | Hosticka | Round 5: Ondrejat, Miroslav - Hosticka, Frantisek | Zukertort Opening: Nimzo-Larsen Variation | |
| May 16, 2026 | Ondrejat | 1–0 | Vaic | Round 4: Ondrejat, Miroslav - Vaic, Pavel | English Opening: Symmetrical Variation | |
| May 16, 2026 | Petrasek | 0–1 | Ondrejat | Round 3: Petrasek, David - Ondrejat, Miroslav | Sicilian Defense: Modern Variations | |
| May 16, 2026 | Ondrejat | 1–0 | Ugrenovich | Round 2: Ondrejat, Miroslav - Ugrenovich, George | Queen's Gambit Declined: Albin Countergambit | |
| May 16, 2026 | Anokhin | 1–0 | Ondrejat | Round 1: Anokhin, Daniel - Ondrejat, Miroslav | Indian Defense: Accelerated London System | |
| May 9, 2026 | Ondrejat | ½–½ | Cabart | Round 7: Ondrejat, Miroslav - Cabart, Pavel | King's Indian Defense: Orthodox Variation | |
| May 8, 2026 | Ondrejat | ½–½ | Krivanek | Round 5: Ondrejat, Miroslav - Krivanek, Vladimir | English Opening: King's English Variation, Reversed Closed Sicilian | |
| May 6, 2026 | Ondrejat | 0–1 | Sprenar | Round 2: Ondrejat, Miroslav - Sprenar, Petr | Queen's Gambit Declined: Vienna Variation | |
| Jul 6, 2025 | Fiser | ½–½ | Ondrejat | Round 9: Fiser, Jiri - Ondrejat, Miroslav | Sicilian Defense: Najdorf Variation, English Attack | |
| Jul 5, 2025 | Ondrejat | 0–1 | Kaderabek | Round 8: Ondrejat, Miroslav - Kaderabek, Jiri | Sicilian Defense: Taimanov Variation | |
| Jul 4, 2025 | Danek | ½–½ | Ondrejat | Round 7: Danek, Vaclav - Ondrejat, Miroslav | English Opening: King's English Variation, Two Knights Variation, Keres Variation | |
| Jul 3, 2025 | Ondrejat | ½–½ | Pribyl | Round 6: Ondrejat, Miroslav - Pribyl, Rene | Slav Defense: Chebanenko Variation | |
| Jul 2, 2025 | Novotny | 0–1 | Ondrejat | Round 5: Novotny, Jaromir - Ondrejat, Miroslav | Sicilian Defense: Mengarini Variation | |
| Jul 1, 2025 | Ondrejat | ½–½ | Burianek | Round 4: Ondrejat, Miroslav - Burianek, Petr | Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line | |
| Jun 29, 2025 | Zednik | ½–½ | Ondrejat | Round 3: Zednik, Zdenek - Ondrejat, Miroslav | English Opening: King's English Variation | |
| Jun 28, 2025 | Novak | ½–½ | Ondrejat | Round 1: Novak, Vaclav - Ondrejat, Miroslav | Sicilian Defense: Modern Variations | |
| May 11, 2025 | Benda | 0–1 | Ondrejat | Round 8: Benda, Adam - Ondrejat, Miroslav | Sicilian Defense: Closed | |
| May 10, 2025 | Ondrejat | ½–½ | Seda | Round 7: Ondrejat, Miroslav - Seda, Michaela | Ruy Lopez: Classical Variation, Central Variation | |
| May 10, 2025 | Zrust | ½–½ | Ondrejat | Round 6: Zrust, Lukas - Ondrejat, Miroslav | Zukertort Opening: Reversed Grünfeld | |
| May 9, 2025 | Vo | ½–½ | Ondrejat | Round 5: Vo, Daniel - Ondrejat, Miroslav | Sicilian Defense: Moscow Variation | |
| May 8, 2025 | Ondrejat | ½–½ | Pazdera | Round 4: Ondrejat, Miroslav - Pazdera, Tomas | Grünfeld Defense: Exchange Variation | |
| May 8, 2025 | Tscharotschkin | 1–0 | Ondrejat | Round 3: Tscharotschkin, Michael - Ondrejat, Miroslav | Queen's Pawn Game: London System | |
| May 7, 2025 | Ondrejat | 1–0 | Gruss | Round 2: Ondrejat, Miroslav - Gruss, Petr | Queen's Gambit Accepted | |
| May 7, 2025 | Laloucek | 0–1 | Ondrejat | Round 1: Laloucek, Miroslav - Ondrejat, Miroslav | Indian Defense: Normal Variation | |
| Jul 8, 2021 | Ondrejat | 1–0 | Schmied | České Budějovice Open | A | English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation | |
| Jul 6, 2021 | Ondrejat | ½–½ | Cizek | České Budějovice Open | A | Semi-Slav Defense: Main Line | |
| Jul 5, 2021 | Pavlicek | 1–0 | Ondrejat | České Budějovice Open | A | English Opening: Symmetrical Variation, Anti-Benoni Variation | |
| Jul 4, 2021 | Ondrejat | * | Simajchl | České Budějovice Open | A | English Opening: Symmetrical Variation | |
| Jul 3, 2021 | Frank | 1–0 | Ondrejat | České Budějovice Open | A | Benoni Defense: Fianchetto Variation | |
| Jul 2, 2021 | Ondrejat | 1–0 | Steinbauer | České Budějovice Open | A | Zukertort Opening: Sicilian Invitation | |
| Jul 1, 2021 | Simek | 1–0 | Ondrejat | České Budějovice Open | A | Benoni Defense: Old Benoni | |