| Apr 6, 2026 | Evtodienko | 0–1 | Blaszkiewicz | X Open Semana Santa 2026 - Grupo B | Italian Game: Scotch Gambit, de Riviere Defense | |
| Apr 5, 2026 | Maraimov | 1–0 | Blaszkiewicz | X Open Semana Santa 2026 - Grupo B | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Mar 21, 2026 | Sambor | 0–1 | Blaszkiewicz | IV Dolnoslaska Liga Juniorow 2026 | Scotch Game: Classical Variation | |
| Mar 21, 2026 | Blaszkiewicz | 1–0 | Kornak | IV Dolnoslaska Liga Juniorow 2026 | Sicilian Defense: Closed | |
| Mar 21, 2026 | Blaszkiewicz | 1–0 | Madalski | IV Dolnoslaska Liga Juniorow 2026 | Sicilian Defense: Closed | |
| Mar 21, 2026 | Dymara | ½–½ | Blaszkiewicz | IV Dolnoslaska Liga Juniorow 2026 | Ruy Lopez: Closed, Breyer Defense, Zaitsev Hybrid | |
| Mar 21, 2026 | Blaszkiewicz | 1–0 | Griman | IV Dolnoslaska Liga Juniorow 2026 | Sicilian Defense: Closed | |
| Mar 21, 2026 | Jakubczyk | 1–0 | Blaszkiewicz | IV Dolnoslaska Liga Juniorow 2026 | Scotch Game: Classical Variation | |
| Mar 21, 2026 | Blaszkiewicz | 1–0 | Curylo | IV Dolnoslaska Liga Juniorow 2026 | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Oct 4, 2025 | Stadnik | 1–0 | Blaszkiewicz | MP-rapid25 | Scotch Game: Blumenfeld Attack | |
| Oct 4, 2025 | Blaszkiewicz | 0–1 | Korszanski | MP-rapid25 | Ruy Lopez: Schliemann Defense | |
| Oct 4, 2025 | Zapolski | 0–1 | Blaszkiewicz | MP-rapid25 | Ruy Lopez: Exchange Variation, Normal Variation | |
| Apr 21, 2025 | Blaszkiewicz | 0–1 | Quindos Cesteros | Semana Santa B. 2025 | Sicilian Defense: Closed, Fianchetto Variation | |
| Apr 20, 2025 | Blaszkiewicz | ½–½ | Garceran Perez | Semana Santa B. 2025 | Ruy Lopez: Berlin Defense | |
| Apr 20, 2025 | Rodriguez Canovas | 1–0 | Blaszkiewicz | Semana Santa B. 2025 | Queen's Pawn Game: Symmetrical Variation | |
| Apr 19, 2025 | Pujades Bosch | 0–1 | Blaszkiewicz | Semana Santa B. 2025 | Queen's Pawn Game: Accelerated London System | |
| Apr 18, 2025 | Blaszkiewicz | 1–0 | Baltrunas | Semana Santa B. 2025 | French Defense: King's Indian Attack | |
| Apr 18, 2025 | Blijlevens | ½–½ | Blaszkiewicz | Semana Santa B. 2025 | Bird Opening: Dutch Variation | |
| Apr 17, 2025 | Blaszkiewicz | 1–0 | Martinez Echezarreta | Semana Santa B. 2025 | French Defense: King's Indian Attack | |
| Aug 30, 2024 | Alcaraz Lopez | 0–1 | Blaszkiewicz | Round 8: Alcaraz Lopez, Francesc - Blaszkiewicz, Jakub | Slav Defense: Quiet Variation, Schallopp Defense | |
| Nov 19, 2021 | Jaszczuk | 1–0 | Blaszkiewicz | pmpjc13 | Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line | |
| Nov 18, 2021 | Blaszkiewicz | 0–1 | Kowalski | pmpjc13 | Sicilian Defense: Four Knights Variation | |
| Nov 18, 2021 | Wilgosz | 1–0 | Blaszkiewicz | pmpjc13 | Ruy Lopez: Morphy Defense, Mackenzie Variation | |
| Nov 17, 2021 | Nocek | 1–0 | Blaszkiewicz | pmpjc13 | Ruy Lopez: Closed, Averbakh Variation | |
| Nov 16, 2021 | Blaszkiewicz | ½–½ | Bartnik | pmpjc13 | French Defense: Tarrasch Variation, Open System, Süchting Line | |
| Nov 16, 2021 | Nagly | 0–1 | Blaszkiewicz | pmpjc13 | Semi-Slav Defense: Quiet Variation | |
| Nov 15, 2021 | Blaszkiewicz | 1–0 | Gawlik | pmpjc13 | Sicilian Defense: O'Kelly Variation, Normal System | |
| — | Blaszkiewicz | 1–0 | Perez Puyal | Ronda 3: Blaszkiewicz, Jakub - Perez Puyal, Jose Joaquin | Scandinavian Defense: Gubinsky-Melts Defense | |
| — | Blaszkiewicz | ½–½ | Serrano Prio | Ronda 5: Blaszkiewicz, Jakub - Serrano Prio, Roc | Ruy Lopez: Cozio Defense | |
| — | Kusiak | 1–0 | Blaszkiewicz | C18b | Four Knights Game: Spanish Variation | |
| — | Lopez Cortes | 0–1 | Blaszkiewicz | Ronda 4: Lopez Cortes, Aitor Jose - Blaszkiewicz, Jakub | Italian Game: Hungarian Defense | |
