Ground: Clay
| ITF M15 Eupen | 2025/08/10 13:00 | Emilien Demanet v Marcel Zielinski | 7-5,7-5 |
| ITF M15 Eupen | 2025/08/09 12:00 | Marcel Zielinski v Simon Beaupain | 6-3,6-1 |
| ITF M15 Eupen | 2025/08/08 17:00 | Adrien Gobat v Marcel Zielinski | 4-6,1-6 |
| ITF M15 Eupen | 2025/08/07 15:00 | Marcel Zielinski v Daniel Verbeek | 6-2,7-5 |
| ITF M15 Eupen | 2025/08/06 10:30 | Marcel Zielinski v Leo Lagarrigue | 7-6,5-2 |
| ITF M15 Xativa | 2025/07/31 08:00 | Marcel Zielinski v Pedro Rodenas | 4-6,4-5 |
| ITF M15 Xativa | 2025/07/29 14:23 | Marcel Zielinski v Mario Arce Fernandez | 6-3,6-0 |
| ITF M25 Denia | 2025/07/23 09:30 | Sergi Perez Contri v Marcel Zielinski | 6-2,6-4 |
| UTR Pro Boca Raton | 2025/06/20 13:00 | Joaquin Bianchi v William Hsieh | 0-6,2-6 |
| UTR Pro Boca Raton | 2025/06/18 16:45 | Ethan Silva v Joaquin Bianchi | 2-6,2-6 |
| UTR Pro Boca Raton | 2025/06/17 16:10 | Tal Goodman v Joaquin Bianchi | 3-6,6-1,7-5 |
| UTR Pro Boca Raton | 2025/06/15 23:15 | Artem Lyapshin v Joaquin Bianchi | 2-6,3-6 |
| ITF M15 Santo Domingo Qual | 2024/11/27 13:00 | Joaquin Bianchi v Aditya Govila | 6-7,4-6 |
| ITF M15 Santo Domingo Qual | 2024/11/26 13:00 | Ambrose Evany v Joaquin Bianchi | 4-6,0-6 |
| ITF M15 Santo Domingo | 2024/11/18 16:30 | Billy Suarez v Joaquin Bianchi | 4-6,4-6 |
| ITF M15 Santo Domingo | 2024/11/17 18:00 | Joaquin Bianchi v Alexey Shtengelov | 6-1,6-2 |