Stadium: Court 1 Round: 29 Ground: Hardcourt indoor
| ITF M25 Hamburg | 2021/10/23 10:00 | Henri Squire v Johannes Haerteis | 6-4,6-4 |
| ITF M25 Hamburg | 2021/10/22 12:40 | Henri Squire v Lenny Hampel | 6-4,6-4 |
| ITF M25 Hamburg | 2021/10/21 09:45 | Daniel Masur v Henri Squire | 4-6,4-6 |
| ITF M25 Hamburg | 2021/10/19 11:25 | Henri Squire v Milan Welte | 6-2,6-2 |
| ITF M25 Skopje | 2021/10/01 13:30 | Riccardo Balzerani v Henri Squire | 2-6,4-6 |
| ITF M25 Skopje | 2021/10/01 09:30 | Gorazd Srbljak v Henri Squire | 6-1,3-6,4-6 |
| ITF M25 Skopje | 2021/09/29 07:30 | Henri Squire v Eric Vanshelboim | 6-2,6-3 |
| ITF M25 Pardubice | 2021/09/26 08:00 | Filip Misolic v Henri Squire | 7-5,6-3 |
| ITF M25 Hamburg | 2021/10/23 11:50 | Louis Wessels v Jakub Paul | 2-6,4-6 |
| 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 |