stadio: IMS Court Round: 25 Ground: Clay
| ITF M15 Koszalin | 2023/09/09 11:00 | Marcel Zielinski v Dominik Kellovsky | 3-6,3-6 |
| ITF M15 Koszalin | 2023/09/08 10:00 | Marcel Zielinski v Patrick Zahraj | 6-3,7-5 |
| ITF M15 Koszalin | 2023/09/07 12:00 | Marcel Zielinski v Fryderyk Lechno-Wasiutynski | 6-7,7-5,6-4 |
| ITF M15 Koszalin | 2023/09/06 15:00 | Marcel Zielinski v Bruno Kokot | 6-2,6-2 |
| ITF M15 Szczawno | 2023/08/31 14:35 | Patrick Zahraj v Marcel Zielinski | 6-3,6-3 |
| ITF M15 Szczawno | 2023/08/30 08:35 | Adam Majchrzak v Marcel Zielinski | 2-6,3-6 |
| ITF M15 Huy | 2023/08/25 08:00 | Marcel Zielinski v Felix Corwin | 6-1,1-6,3-6 |
| ITF M15 Huy | 2023/08/23 14:10 | Marcel Zielinski v Lautaro Agustin Falabella | 6-3,6-4 |
| ITF M15 Buschhausen | 2023/09/11 13:20 | Steffan Van Weldam v Christian Hansen | 4-6,1-6 |
| ITF M15 Buschhausen | 2023/09/11 08:00 | Tomi Van den Ham v Christian Hansen | 4-6,0-6 |
| ITF M25 Esch/Alzette | 2023/07/17 13:20 | Christian Hansen v Stijn Pel | 3-6,6-3,7-10 |
| ITF M25 Esch/Alzette - Qual. | 2023/07/16 14:05 | Louis Van Herck v Christian Hansen | 3-6,3-6 |
| ITF M15 Kamen | 2023/06/26 08:00 | Christian Hansen v Matyas Cerny | 3-6,2-6 |
| German Championship | 2022/12/07 11:30 | Tom Schonenberg v Christian Hansen | 6-3,1-6,6-6 |
| UTR Pro Tennis Series Blaricum | 2022/11/17 08:30 | Christian Hansen v Aloys J W Van Baal | 6-7,6-3,6-4 |
| UTR Pro Tennis Series Blaricum | 2022/11/16 07:00 | Christian Hansen v Karlo Cubelic | 4-6,6-7 |