| Bulgarian Int. - Kval | 2023/10/05 08:55 | Piotr Krajewski v Yazgan Calisir | L | 0-2 |
| Kroatien Int. - Kval | 2023/09/28 09:20 | Piotr Krajewski v Tamino Procida | L | 0-2 |
| Polish Int. - Kval | 2023/09/21 07:00 | Vitaliy Reva v Piotr Krajewski | L | 2-0 |
| Latvia Int. Qual | 2023/08/31 08:20 | Piotr Krajewski v Niilo Nyqvist | L | 0-2 |
| Polish Int. - Kval | 2022/09/21 07:40 | Sebastian Kadlec v Piotr Krajewski | L | 2-0 |
| Polish Int. - Kval | 2019/09/19 07:35 | Piotr Krajewski v Samuel Cassar | L | 0-2 |
| Giraldilla Int. - Mixed dubbel | 2017/03/23 10:19 | Piotr Krajewski v Dzmitry Saidakou | L | 0-2 |
| Slovenien - Future Series - Kval | 2023/09/07 07:40 | Daniel Dvorak v Sebastian Mikkelsen | L | 0-2 |
| Slovenia Open - Kval | 2023/05/17 10:30 | Kian-Yu Oei v Daniel Dvorak | L | 2-0 |
| Polish Open - Kval | 2023/03/22 08:00 | Daniel Dvorak v Kai Niederhuber | L | 0-2 |
| Polish Int. - Kval | 2022/09/21 08:20 | Adrian Koc v Daniel Dvorak | W | 0-2 |