Stadium: Court 4 Round: 25 Ground: Clay
| ITF M15 Meerbusch | 2023/04/27 08:55 | Marcel Zielinski v Liam Gavrielides | 6-7,1-6 |
| 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 Martin Cuevas | 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 Doboj | 2023/05/12 08:35 | Lautaro Agustin Falabella v Stefan Popovic | 6-3,0-6,0-6 |
| ITF M15 Doboj | 2023/05/10 08:00 | Nikola Basic v Lautaro Agustin Falabella | 3-6,6-4,5-7 |
| ITF M15 Doboj | 2023/05/09 08:00 | Lautaro Agustin Falabella v Luka Miklavcic | 2-6,6-3,10-6 |
| ITF M15 Doboj | 2023/05/08 08:00 | Lautaro Agustin Falabella v Luka Puljic | 6-0,6-4 |
| ITF M15 Osijek | 2023/05/04 10:55 | Lautaro Agustin Falabella v Gergely Madarasz | 4-6,6-7 |
| ITF M15 Osijek | 2023/05/03 10:05 | Lautaro Agustin Falabella v Nikola Basic | 6-1,7-6 |
| ITF M15 Mogi das Cruzes | 2023/04/25 15:30 | Lautaro Agustin Falabella v Felipe De Dios | 7-5,4-6,0-6 |
| UTR Pro Tigre | 2023/04/01 14:21 | Lautaro Agustin Falabella v Federico Juan Aguilar | 3-6,4-5 |