Stadium: Court 2 Round: 26 Ground: Clay
| ITF - M15 Meerbusch | 2023/04/26 09:00 | Marcel Zielinski v John Sperle | 7-6,7-5 |
| ITF - M15 Telde | 2023/04/23 09:00 | Marcel Zielinski v Alejandro Manzanera Pertusa | 4-6,6-7 |
| ITF - M15 Telde | 2023/04/22 09:00 | Kai Lemstra v Marcel Zielinski | 2-6,4-6 |
| ITF - M15 Telde | 2023/04/21 09:00 | Marcel Zielinski v Cuevas, Martin | 6-4,6-1 |
| ITF - M15 Telde | 2023/04/20 12:30 | Jorge Martinez Martinez v Marcel Zielinski | 3-6,2-6 |
| ITF - M15 Telde | 2023/04/18 08:00 | Marcel Zielinski v Benjamin Winter Lopez | 3-6,6-2,6-4 |
| ITF - M15 Telde | 2023/04/17 08:00 | Marcel Zielinski v Ian Luca Cervantes Tomas | 6-4,6-2 |
| ITF - M15 Telde | 2023/04/16 08:00 | Marcel Zielinski v Iker Urribarrens | 7-6,6-2 |
| ITF - M15 Meerbusch | 2023/04/25 11:00 | Liam Gavrielides v Tibo Colson | 5-7,6-2,6-3 |
| ITF - M25 Reus | 2023/04/05 12:35 | Liam Gavrielides v Nikolas Sanchez Izquierdo | 2-6,4-6 |
| ITF - M25 Reus | 2023/04/04 08:00 | Michael Zhu v Liam Gavrielides | 1-6,1-6 |
| ITF - M25 Reus | 2023/04/03 09:30 | Martinez Arjona, Samuel v Liam Gavrielides | 1-6,4-6 |
| ITF - M25 Reus | 2023/04/02 12:00 | Josh Roe Flannelly v Liam Gavrielides | 0-6,0-6 |
| ITF - M15 Antalya | 2023/03/15 09:15 | Madaras, Dragos Nicolae v Liam Gavrielides | 6-1,7-5 |
| ITF - M15 Antalya | 2023/03/14 11:30 | Novikov, Egor v Liam Gavrielides | 1-6,6-3,5-10 |
| ITF - M15 Antalya | 2023/03/13 16:55 | Stepan Mruzek v Liam Gavrielides | 2-6,3-6 |