Stadium: Court 3 Round: 28 Ground: Clay
| ITF M25 Heraklion | 2023/03/13 08:00 | Kai Lemstra v Miko Wassermann | 6-2,6-0 |
| UTR Pro Dubai | 2023/02/12 05:00 | Kai Lemstra v Dmitri Vlasov | 6-2,6-0 |
| UTR Pro Dubai | 2023/02/11 05:00 | Kai Lemstra v Johann Willems | 3-6,7-6,5-1 |
| UTR Pro Dubai | 2023/02/10 06:30 | Kai Lemstra v Benedikt Henning | 7-5,6-1 |
| UTR Pro Dubai | 2023/02/08 06:30 | Kai Lemstra v Lohithaksha Bathrinath | 6-1,6-2 |
| UTR Pro Dubai | 2023/02/07 05:00 | Kai Lemstra v Luka Pavlovic | 6-3,6-4 |
| UTR Pro Dubai | 2023/02/06 05:00 | Tomislav Jotovski v Kai Lemstra | 1-6,0-6 |
| UTR Pro Dubai | 2023/02/05 05:00 | Mikalai Haliak v Kai Lemstra | 5-7,4-6 |
| ITF M15 Antalya | 2023/03/12 10:30 | Marcel Zielinski v Andrea Fiorentini | 1-6,2-6 |
| ITF M15 Antalya | 2023/03/09 07:00 | Sean Cuenin v Marcel Zielinski | 6-3,6-0 |
| ITF M15 Antalya | 2023/03/08 11:30 | Marcel Zielinski v Rimpei Kawakami | 6-3,1-6,6-4 |
| ITF M15 Antalya | 2023/03/07 07:00 | Marcel Zielinski v Carlo Alberto Fossati | 3-6,7-6,10-5 |
| ITF M15 Antalya | 2023/03/06 07:30 | Marcel Zielinski v Stepan Mruzek | 6-1,6-1 |
| ITF M15 Antalya | 2023/03/05 06:30 | Marcel Zielinski v Markus Wunder | 6-4,6-2 |
| ITF M25 Antalya | 2023/02/02 08:55 | Marcel Zielinski v Alex Barrena | 7-6,2-6,4-6 |
| ITF M25 Antalya | 2023/02/01 10:30 | Aleksandr Lobanov v Marcel Zielinski | 4-6,0-6 |