Stadium: Court 2 Round: 27 Ground: Hardcourt outdoor
| ITF M15 Vienna | 2023/08/31 08:00 | Milos Karol v Sebastian Sorger | 6-4,6-3 |
| ITF M15 Vienna | 2023/08/30 10:05 | Lukas Rohseano v Sebastian Sorger | 1-6,1-6 |
| ITF M25 Osijek | 2023/08/11 12:45 | Sebastian Sorger v Valerio Aboian | 4-6,4-6 |
| ITF M25 Osijek | 2023/08/10 12:35 | Sebastian Sorger v Luka Pavlovic | 4-6,6-3,6-1 |
| ITF M25 Osijek | 2023/08/09 12:55 | Sebastian Sorger v Duje Kekez | 0-6,6-4,6-2 |
| ITF M15 Novi Sad | 2023/08/02 11:10 | Florent Bax v Sebastian Sorger | 6-1,6-3 |
| ITF M15 Novi Sad | 2023/07/25 12:30 | Sebastian Sorger v Franco Roncadelli | 6-4,1-6,0-6 |
| ITF M15 Sofia | 2023/07/04 07:00 | Sebastian Sorger v Leonardo Aboian | 6-2,4-6,3-6 |
| ITF M15 Szczawno | 2023/09/01 09:00 | Olaf Pieczkowski v Jonas P Hartenstein | 6-2,6-2 |
| ITF M15 Szczawno | 2023/08/30 07:00 | Olaf Pieczkowski v Alan Bojarski | 6-0,6-2 |
| ITF M25 Poznan | 2023/08/23 13:45 | Olaf Pieczkowski v Viacheslav Bielinskyi | 6-3,3-6,2-6 |
| ITF M25 Bielsko Biala | 2023/08/18 08:30 | Juan Bautista Torres v Olaf Pieczkowski | 6-3,6-2 |
| ITF M25 Bielsko Biala | 2023/08/17 08:30 | Olaf Pieczkowski v Daniel Siniakov | 7-5,6-2 |
| ITF M25 Bielsko Biala | 2023/08/16 09:00 | Ondrej Horak v Olaf Pieczkowski | 6-3,1-6,0-6 |
| ITF M25 Lodz | 2023/08/10 10:30 | Daniel Paty v Olaf Pieczkowski | 6-3,6-2 |
| ITF M25 Lodz | 2023/08/09 09:20 | Milos Karol v Olaf Pieczkowski | 6-3,2-6,3-6 |