3 games · 2024–2025 · 3 classical · 0 online
Mazurek 20 draws1 Pietrzak
66.7% for Mazurek
Openings between them
| B30 | Sicilian Defense: Old Sicilian | 1 | 100.0% |
| C78 | Ruy Lopez: Morphy Defense, Neo-Arkhangelsk Variation | 1 | 100.0% |
| C83 | Ruy Lopez: Open, Classical Defense | 1 | 0.0% |
All games
| Pietrzak, W1844 | 1-0 | Mazurek, Jerzy1922 | 307th YMCA Autumn B 2025 | 2025 |
| Mazurek, Jerzy1890 | 1-0 | Pietrzak, W1842 | 292nd YMCA Autumn A 2024 | 2024 |
| Pietrzak, W1856 | 0-1 | Mazurek, Jerzy1839 | 287th YMCA Spring B 2024 | 2024 |