Stadium: Court 11 Round: 62 Ground: Clay
| ITF M25 Trier | 2021/08/25 09:00 | Max Wiskandt v Raphael Calzi | 7-5,4-6,2-6 |
| ITF M25 Trier | 2021/08/23 11:30 | Max Wiskandt v Tristan Reiff | 6-3,6-2 |
| ITF M25 Trier | 2021/08/23 08:30 | Max Wiskandt v Tom Diederich | 6-2,6-4 |
| ITF M25 Ueberlingen | 2021/08/18 08:00 | Henri Squire v Max Wiskandt | 6-4,6-3 |
| ITF M25 Frankfurt am Main | 2021/08/09 11:55 | Max Wiskandt v Niklas Schell | 6-3,3-6,5-10 |
| ITF M25 Wetzlar | 2021/08/04 12:55 | Matthew Romios v Max Wiskandt | 6-4,6-3 |
| ITF M25 Marburg | 2021/07/06 16:15 | Max Wiskandt v Kyrian Jacquet | 6-2,6-4 |
| ITF M25 Alkmaar | 2021/06/20 11:00 | Marvin Moeller v Max Wiskandt | 7-6,6-3 |