73 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Leszczewicz, Karol | Sokolowski, Ryszard | 1-0 | E16 | 1 liga B | 2026-09-13 |
| Leszczewicz, Karol | Sygulski, Piotr | 0-1 | B17 | 1 liga B | 2026-09-10 |
| Leszczewicz, Karol | Majdanski, Maksymilian | 0-1 | B15 | 1 liga B | 2026-09-08 |
| Leszczewicz, Karol | Mazalon, Mariusz | 1/2-1/2 | B96 | 1 liga B | 2026-09-07 |
| Leszczewicz, Karol | Ugorek, Kacper | 1/2-1/2 | B08 | Rapid C18 | 2026-07-11 |
| Leszczewicz, Karol | Lonski, Aleksander | 1/2-1/2 | D02 | I Liga 6-10 | 2025-09-13 |
| Leszczewicz, Karol | Adamowicz, Katarzyna | 1/2-1/2 | E10 | I Liga 1-5 | 2025-09-10 |
| Leszczewicz, Karol | Suliborski, Jakub | 0-1 | A46 | I Liga 1-5 | 2025-09-08 |
| Leszczewicz, Karol | Skrzypczak, Jan | 0-1 | E60 | I Liga 6-10 | 2025-09-06 |
| Leszczewicz, Karol | Czak, Dominik | 1/2-1/2 | B47 | II DMP Juniorow | 2025-06-26 |
| Leszczewicz, Karol | Lysakowski, Kamil | 1-0 | A45 | II DMP Juniorow | 2025-06-23 |
| Leszczewicz, Karol | Moroz, Volodymyr | 1-0 | A80 | II DMP Juniorow | 2025-06-22 |
| Leszczewicz, Karol | Polak, Aleksander | 1/2-1/2 | A62 | II DMP Juniorow | 2025-06-20 |
| Leszczewicz, Karol | Matuszewski, Kacper | 1-0 | E15 | II DMP Juniorow | 2025-06-18 |
| Leszczewicz, Karol | Junc, Ioan-Stefan | 1/2-1/2 | D03 | Festiwal Adolfa Anderssena 2024 B | 2024-08-14 |
| Leszczewicz, Karol | Klys, Kacper | 0-1 | D03 | Festiwal Adolfa Anderssena 2024 B | 2024-08-12 |
| Leszczewicz, Karol | Frac, Piotr | 0-1 | A61 | Festiwal Adolfa Anderssena 2024 B | 2024-08-10 |
| Leszczewicz, Karol | Kryvenko, Daryna | 1-0 | B06 | Festiwal Adolfa Anderssena 2024 B | 2024-08-09 |
| Leszczewicz, Karol | Majek, Kacper | 1-0 | D02 | Macieja Memorial | 2024-07-08 |
| Leszczewicz, Karol | Lewandrowski, Tomasz | 1-0 | A46 | Macieja Memorial | 2024-07-08 |
| Leszczewicz, Karol | Czernek, Tymon | 0-1 | A48 | Macieja Memorial | 2024-07-08 |
| Leszczewicz, Karol | Kudlak, Julia | 1-0 | E98 | open b | 2022-08-09 |
| Leszczewicz, Karol | Bartoszewicz, Marcin | 0-1 | E98 | open b | 2022-08-05 |
| Leszczewicz, Karol | Obolonin, Filipp | 1/2-1/2 | D16 | open b | 2022-08-03 |
| Leszczewicz, Karol | Huchwajda, Grzegorz | 1-0 | D24 | VI Miedzynarodowy Memorial Ireny Warakom | 2022-08-03 |
| Leszczewicz, Karol | Wilgosz, Szczepan | 0-1 | A16 | pmpjc13 | 2021-11-20 |
| Leszczewicz, Karol | Nagly, Wojciech | 0-1 | B30 | pmpjc13 | 2021-11-18 |
| Leszczewicz, Karol | Trusewicz, Jakub | 1-0 | A28 | pmpjc13 | 2021-11-17 |
| Leszczewicz, Karol | Kolendo, Tymon | 1-0 | D32 | pmpjc13 | 2021-11-16 |
| Leszczewicz, Karol | Kowalczyk, Rafal | 1/2-1/2 | A46 | Rubinstein Chess Festival 2025 - OPEN A | |
| Leszczewicz, Karol | Ziobrowska, Maja | 1-0 | C45 | Rubinstein Chess Festival 2025 - OPEN A | |
| Leszczewicz, Karol | Kiszkiel, Oskar | 1/2-1/2 | B22 | Rubinstein Chess Festival 2025 - OPEN A | |
| Leszczewicz, Karol | Jedras, Piotr | 0-1 | B75 | Rubinstein Chess Festival 2025 - OPEN A |