Stadium: Indoor 3 Round: 62 Ground: Clay
| ITF M25 Nussloch | 2023/01/23 16:00 | Leopold Zima v Adam Jurajda | 7-6,6-3 |
| ITF M25 Nussloch | 2023/01/23 09:00 | Leopold Zima v Noah Thurner | 6-4,7-5 |
| ITF M15 Bressuire | 2023/01/20 12:35 | Lucas Poullain v Leopold Zima | 6-4,6-4 |
| ITF M15 Bressuire | 2023/01/19 16:15 | Maxence Broville v Leopold Zima | 1-6,2-6 |
| ITF M15 Bressuire | 2023/01/18 17:10 | Leopold Zima v Alexis Gautier | 3-6,6-3,6-4 |
| ITF M15 Manacor | 2023/01/10 12:00 | Amaury Raynel v Leopold Zima | 4-6,6-4,6-1 |
| German Championship | 2022/12/09 10:00 | Jakob Schnaitter v Leopold Zima | 6-2,5-1 |
| German Championship | 2022/12/08 14:00 | Luca Gelhardt v Leopold Zima | 0-1 |
| ITF M25 Nussloch | 2023/01/23 09:00 | Niklas Koch v Jannik Opitz | 3-6,4-6 |
| ITF M15 Trier | 2022/08/22 08:00 | Joshua Schaefer v Niklas Koch | 5-7,4-6 |
| UTR Pro Tennis Series Blaricum | 2022/04/05 12:30 | Zachary Eisinga v Niklas Koch | 5-1 |
| UTR Pro Tennis Series Blaricum | 2022/04/04 13:30 | Twan Van Zijl v Niklas Koch | 6-1,6-1 |
| UTR Pro Tennis Series Amsterdam | 2022/03/05 12:00 | Olivier Rojas v Niklas Koch | 3-6,6-1,5-4 |
| UTR Pro Tennis Series Amsterdam | 2022/03/04 09:00 | Jurriaan Bol v Niklas Koch | 6-4,1-6,6-3 |
| UTR Pro Tennis Series Amsterdam | 2022/03/03 15:05 | Teun Rozenberg v Niklas Koch | 2-6,4-6 |
| UTR Pro Tennis Series Amsterdam | 2022/03/01 10:30 | Benjamin Dhoe v Niklas Koch | 6-4,6-4 |