Stadium: Court 3 Round: 54 Ground: Hardcourt indoor
| ITF M25 Lodz | 2023/08/09 17:00 | Piotr Grynkowski v Jiri Barnat | 3-6,3-6 |
| ITF M25 Lodz | 2023/08/08 11:05 | Piotr Grynkowski v Piotr Siekanowicz | 6-4,6-1 |
| ITF M25 Lodz | 2023/08/07 10:30 | Siim Troost v Piotr Grynkowski | 6-7,6-7 |
| ITF M25 Jablonec Nad Nisou | 2023/05/29 10:30 | Thijmen Loof v Piotr Grynkowski | 7-6,7-5 |
| ITF M15 Lodz | 2022/07/27 13:30 | Piotr Grynkowski v Petr Nouza | 1-6,3-6 |
| ITF M15 Lodz | 2022/07/26 13:30 | Federico Campana v Piotr Grynkowski | 3-6,4-6 |
| ITF M15 Cairo | 2022/01/12 08:00 | Daniel Michalski v Piotr Grynkowski | 6-1,6-1 |
| ITF M15 Cairo | 2022/01/06 08:00 | Piotr Grynkowski v Simone Roncalli | 4-6,1-6 |
| ITF M25 Antalya | 2024/02/05 11:35 | Miha Vetrih v Juliusz Bienkiewicz | 7-5,6-4 |
| ITF M25 Antalya | 2024/02/04 07:00 | Ritesh Dubey v Juliusz Bienkiewicz | 0-6,0-6 |
| ITF M25 Antalya | 2024/01/30 08:45 | Juliusz Bienkiewicz v Gokberk Saritas | 5-7,6-4,8-10 |
| ITF M25 Antalya | 2024/01/29 11:50 | Juliusz Bienkiewicz v Simon Knezevic | 6-4,7-6 |
| ITF M15 Antalya | 2023/11/06 07:00 | Gokberk Saritas v Juliusz Bienkiewicz | 1-6,6-2,10-3 |
| ITF M25 Pardubice | 2023/09/17 09:00 | Juliusz Bienkiewicz v Dominique Graf | 2-6,1-6 |
| ITF M15 Koszalin | 2023/09/05 10:40 | Juliusz Bienkiewicz v Alan Bojarski | 4-6,4-6 |
| ITF M15 Koszalin | 2023/09/04 07:30 | Juliusz Bienkiewicz v Kacper Szymkowiak | 6-2,7-5 |