Stadium: Court 5 Round: 25 Ground: Clay
| ITF M25 Ueberlingen | 2021/08/17 08:00 | Henri Squire v Nick Dufner | 6-1,6-0 |
| ITF M25 Wetzlar | 2021/08/06 10:55 | David Pichler v Henri Squire | 4-6,6-4,6-4 |
| ITF M25 Wetzlar | 2021/08/05 09:00 | Tim Handel v Henri Squire | 6-3,3-6,6-7 |
| ITF M25 Wetzlar | 2021/08/03 16:10 | Henri Squire v Benjamin Hassan | 6-2,6-3 |
| ITF M25 Marburg | 2021/07/09 14:55 | Henri Squire v Louis Wessels | 3-6,5-7 |
| ITF M25 Marburg | 2021/07/07 14:55 | Christopher Heyman v Henri Squire | 5-7,3-6 |
| ITF M25 Haag | 2021/06/29 09:00 | Henri Squire v Julian Ocleppo | 5-7,5-7 |
| ITF M25 Haag | 2021/06/28 10:15 | Guy Den Ouden v Henri Squire | 2-6,0-6 |
| 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 |
| ITF M15 Heraklion | 2021/05/23 08:00 | Eleftherios Neos v Max Wiskandt | 3-6,2-6 |
| ITF M15 Heraklion | 2021/05/20 09:50 | Max Wiskandt v Yshai Oliel | 6-3,1-6,2-6 |
| ITF M15 Heraklion | 2021/05/18 10:10 | Lorenzo Claverie v Max Wiskandt | 4-6,4-6 |
| ITF M15 Troisdorf | 2021/05/12 12:00 | Yannick Mertens v Max Wiskandt | 7-6,6-3 |