Stadium: Court 1 Round: 54 Ground: Hardcourt indoor
| ITF M25 Sunderland | 2023/10/29 11:35 | David Quayle v Ioannis Stamatopoulos | 7-5,6-0 |
| ITF M25 Glasgow | 2023/10/22 16:35 | Ioannis Stamatopoulos v James Mackinlay | 5-7,4-6 |
| ITF M25 Edgbaston | 2023/10/15 09:00 | Ioannis Stamatopoulos v Freek Van Donselaar | 1-6,7-6,5-10 |
| ITF M25 Porto | 2023/07/23 09:00 | Emanuele Mazzeschi v Ioannis Stamatopoulos | 6-0,6-2 |
| ITF M15 Monastir | 2023/11/29 08:25 | Jakub Paul v Oskar Grzegorzewski | 6-0,6-3 |
| ITF M15 Monastir | 2023/11/27 10:00 | Oskar Grzegorzewski v Mariano Andres Bibiloni | 6-0,6-1 |
| ITF M15 Monastir | 2023/11/26 11:00 | Oskar Grzegorzewski v Adam Majchrzak | 6-2,5-7,10-8 |
| ITF M25 Monastir | 2023/11/20 08:00 | Romeo Hadzimehmedovic v Oskar Grzegorzewski | 5-7,6-3,10-7 |
| ITF M25 Monastir | 2023/11/19 08:30 | Victor Kuznetsov v Oskar Grzegorzewski | 6-7,3-6 |
| ITF M15 Monastir | 2023/11/15 08:30 | Oskar Grzegorzewski v Juan Bautista Otegui | 4-6,2-6 |
| ITF M15 Monastir | 2023/11/13 10:30 | Oskar Grzegorzewski v Saba George Nanobashvili | 3-6,6-2,10-1 |
| ITF M15 Heraklion | 2023/10/22 08:30 | Oskar Grzegorzewski v Gianluca Carlini | 4-6,4-6 |