Stadium: Hard 17 Round: 25 Ground: Hardcourt outdoor
| UTR Pro Thessaloniki | 2023/04/29 08:00 | Andreas Loizas v Vladimir Filip | 6-4,2-6,2-6 |
| UTR Pro Thessaloniki | 2023/04/28 05:00 | Christos Keisidis v Andreas Loizas | 2-5 |
| UTR Pro Thessaloniki | 2023/04/27 06:30 | Ivan Kremenchutskyi v Andreas Loizas | 2-6,0-6 |
| UTR Pro Thessaloniki | 2023/04/26 09:40 | Vasile Antonescu v Andreas Loizas | 3-6,6-2,6-3 |
| UTR Pro Thessaloniki | 2023/04/24 05:00 | Samuel Kyjaci v Andreas Loizas | 6-4,6-7,3-6 |
| Challenger Grodzisk Mazowiecki | 2023/08/13 13:20 | Szymon Kielan v Alex Knaff | 3-6,0-6 |
| ITF M25 Lodz | 2023/08/09 17:15 | Szymon Kielan v Patrick Kaukovalta | 6-7,4-6 |
| ITF M15 Novi Sad | 2023/08/02 13:50 | Szymon Kielan v Stefan Popovic | 2-6,1-6 |
| ITF M15 Sofia | 2023/07/06 06:30 | Szymon Kielan v Andreja Petrovic | 6-3,6-3 |
| ITF M15 Sofia | 2023/07/04 07:00 | Federico Agustin Gomez v Szymon Kielan | 2-6,3-6 |
| ITF M15 Wroclaw | 2023/06/27 08:00 | Tyler Zink v Szymon Kielan | 6-3,6-1 |
| ITF M15 Monastir | 2023/04/19 11:10 | Shunsuke Nakagawa v Szymon Kielan | 6-4,6-1 |
| ITF M15 Monastir | 2023/04/13 08:30 | Szymon Kielan v Daniel Rodrigues | 2-6,2-6 |