Stadium: IMS Court Round: 25 Ground: Clay
| Koszalin, Singles Qualifying M-ITF-POL-02A | 2023/09/09 11:00 | Zielinski, Marcel v 켈로브스키, 도미니크 | 3-6,3-6 |
| Koszalin, Singles Qualifying M-ITF-POL-02A | 2023/09/08 10:00 | Zielinski, Marcel v 자라이, 패트릭 | 6-3,7-5 |
| Koszalin, Singles Qualifying M-ITF-POL-02A | 2023/09/07 12:00 | Zielinski, Marcel v Fryderyk Lechno-Wasiutynski | 6-7,7-5,6-4 |
| Koszalin, Singles Qualifying M-ITF-POL-02A | 2023/09/06 15:00 | Zielinski, Marcel v Bruno Kokot | 6-2,6-2 |
| ITF M15 Szczawno | 2023/08/31 14:35 | 자라이, 패트릭 v Zielinski, Marcel | 6-3,6-3 |
| ITF M15 Szczawno | 2023/08/30 08:35 | Adam Majchrzak v Zielinski, Marcel | 2-6,3-6 |
| ITF M15 Huy | 2023/08/25 08:00 | Zielinski, Marcel v 코르윈, 펠릭스 | 6-1,1-6,3-6 |
| ITF M15 Huy | 2023/08/23 14:10 | Zielinski, Marcel v 팔라벨라, 라우타로 아거스틴 | 6-3,6-4 |
| ITF M15 Buschhausen | 2023/09/11 13:20 | Steffan Van Weldam v Hansen, Christian | 4-6,1-6 |
| ITF M15 Buschhausen | 2023/09/11 08:00 | Tomi Van den Ham v Hansen, Christian | 4-6,0-6 |
| ITF M25 Esch/Alzette | 2023/07/17 13:20 | Hansen, Christian v 펠, 스테인 | 3-6,6-3,7-10 |
| ITF M25 Esch/Alzette Qual | 2023/07/16 14:05 | van Herck, Louis v Hansen, Christian | 3-6,3-6 |
| ITF M15 Kamen | 2023/06/26 08:00 | Hansen, Christian v 체르니, 마티아스 | 3-6,2-6 |
| German Championship | 2022/12/07 11:30 | Schonenberg, Tom v Hansen, Christian | 6-3,1-6,6-6 |
| UTR Pro Tennis Series Blaricum | 2022/11/17 08:30 | Hansen, Christian v 반 발, 알로이스 요하네스 윌렘 | 6-7,6-3,6-4 |
| UTR Pro Tennis Series Blaricum | 2022/11/16 07:00 | Hansen, Christian v 쿠벨리크, 카를로 | 4-6,6-7 |