stadio: CC Round: 25 Ground: Clay
| ITF M25 Ueberlingen | 2021/08/19 10:35 | Louis Wessels v Milan Welte | 6-4,6-3 |
| ITF M25 Ueberlingen | 2021/08/18 14:10 | Milan Welte v Constantin Bittoun Kouzmine | 6-4,6-0 |
| ITF M25 Francoforte sul Meno | 2021/08/09 14:10 | Milan Welte v Taiyo Yamanaka | 6-7,4-6 |
| ITF M15 Parnu | 2021/08/04 09:20 | Vladimir Ivanov v Milan Welte | 7-5,1-6,6-3 |
| ITF M25 Marburg | 2021/07/09 12:00 | Ryan Nijboer v Milan Welte | 4-6,6-3,6-1 |
| ITF M25 Marburg | 2021/07/08 08:55 | Milan Welte v Neo Niedner | 6-2,6-1 |
| ITF M25 Marburg | 2021/07/07 12:30 | Daniel Cukierman v Milan Welte | 4-6,4-6 |
| ITF M25 Marburg | 2021/07/06 15:00 | Milan Welte v Raphael Collignon | 7-6,6-3 |
| ITF M25 Ueberlingen | 2021/08/21 10:00 | Ergi Kirkin v Tim Handel | 4-6,7-6,7-6 |
| ITF M25 Ueberlingen | 2021/08/20 10:00 | Tim Handel v Liam Gavrielides | 6-2,6-1 |
| ITF M25 Ueberlingen | 2021/08/19 10:00 | Alexander Cozbinov v Tim Handel | 3-6,4-6 |
| ITF M25 Ueberlingen | 2021/08/17 12:55 | Tim Handel v Matthew Romios | 6-4,6-2 |
| ITF M25 Francoforte sul Meno | 2021/08/11 10:40 | Tim Handel v Arnaud Bovy | 7-5,3-6,2-6 |
| ITF M25 Francoforte sul Meno | 2021/08/10 10:35 | Christoph Negritu v Tim Handel | 4-6,6-2,6-10 |
| ITF M25 Francoforte sul Meno | 2021/08/09 12:30 | Neo Niedner v Tim Handel | 2-6,2-6 |
| ITF M25 Wetzlar | 2021/08/05 09:00 | Tim Handel v Henri Squire | 6-3,3-6,6-7 |