Stadium: Court 4 Round: 1
| ITF M15 Loule | 2020/03/08 14:00 | Blake Ellis v Walder, Jim | 3-6,6-4,10-8 |
| ITF - M15 Oberhaching | 2020/02/16 10:00 | Emilien Voisin v Walder, Jim | 6-4,6-2 |
| ITF - M25 Nussloch | 2020/01/20 19:30 | Ryan Nijboer v Walder, Jim | 6-4,6-2 |
| ITF - M25 Nussloch | 2020/01/20 11:20 | Walder, Jim v Karlo Cubelic | 6-3,2-6,10-5 |
| ITF - M25 Nussloch | 2020/01/19 09:00 | Bezjak, Gasper v Walder, Jim | 4-6,2-6 |
| ITF M15 Cancun | 2019/11/17 15:00 | Walder, Jim v Eguez, Sebastian | 4-6,5-7 |
| ITF M15 Cancun | 2019/11/10 16:30 | Walder, Jim v Villar, Yeudy | 4-6,4-6 |
| ITF M15 Cancun | 2019/11/03 16:00 | Ansari, Austin Ansari v Walder, Jim | 7-6,6-3 |
| German Masters | 2020/08/05 11:00 | Louis Wessels v Oscar Moraing | 6-3,6-2 |
| German Masters | 2020/08/04 12:40 | Louis Wessels v Khotkov, Oleg | 6-1,6-1 |
| German Premier League | 2020/08/03 12:10 | Benjamin Lock v Louis Wessels | 6-7,6-7 |
| German Premier League | 2020/07/31 07:30 | Alexey Vatutin v Louis Wessels | 6-2,6-3 |
| German Premier League | 2020/07/30 10:50 | Louis Wessels v Borges, Noah | 6-2,6-2 |
| German Premier League | 2020/07/29 12:00 | Louis Wessels v Luc Fomba | 6-4,6-4 |
| German Premier League | 2020/07/28 09:15 | Paul Valsecchi v Louis Wessels | 6-3,2-6,0-6 |
| German Premier League | 2020/07/27 15:30 | Kohlschreiber, Philipp v Louis Wessels | 6-4,6-4 |