Stadium: Court 1 Round: 28 Ground: Hardcourt indoor
| ITF M25 Hamburg | 2021/10/22 09:55 | Louis Wessels v Martin Krumich | 4-6,6-2,6-2 |
| ITF M25 Hamburg | 2021/10/21 09:55 | Louis Wessels v Kai Wehnelt | 7-5,4-6,6-3 |
| ITF M25 Hamburg | 2021/10/20 08:00 | Louis Wessels v Jeremy Jahn | 6-1,7-6 |
| Challenger Napoli | 2021/10/11 08:30 | Louis Wessels v Alvaro Lopez San Martin | 6-7,4-6 |
| ITF M25 Skopje | 2021/10/03 09:00 | Louis Wessels v Matteo Arnaldi | 1-6,0-6 |
| ITF M25 Skopje | 2021/10/02 09:30 | Aldin Setkic v Louis Wessels | 2-6,7-6,3-6 |
| ITF M25 Skopje | 2021/10/01 14:30 | Louis Wessels v Clement Tabur | 7-5,6-1 |
| ITF M25 Skopje | 2021/10/01 08:00 | Louis Wessels v Besir Durguti | 6-0,6-1 |
| ITF M25 Hamburg | 2021/10/22 10:00 | Jakub Paul v Leandro Riedi | 7-5,6-4 |
| ITF M25 Hamburg | 2021/10/21 15:50 | Elmar Ejupovic v Jakub Paul | 6-2,2-6,2-6 |
| ITF M25 Hamburg | 2021/10/19 12:45 | Jakub Paul v Filip Bergevi | 6-4,6-3 |
| ITF M25 Prague | 2021/10/07 10:15 | Jakub Paul v Marek Gengel | 2-6,4-6 |
| ITF M25 Prague | 2021/10/05 12:45 | Jakub Paul v Ondrej Krstev | 7-5,6-4 |
| ITF M25 Falun | 2021/09/28 12:40 | Jakub Paul v Shintaro Imai | 3-6,0-6 |
| Challenger Biel | 2021/09/21 10:00 | Jakub Paul v Alexander Ritschard | 4-6,4-6 |
| Challenger Biel | 2021/09/20 09:00 | Tobias Simon v Jakub Paul | 4-6,4-6 |