Stadium: Court 3 Oberhaching Round: 44 Ground: Hardcourt indoor
| ITF M15 Oberhaching | 2022/02/13 08:00 | Valentin Guenther v Thomas Deschamps | 2-6,7-6,11-9 |
| ITF M15 Heraklion | 2020/02/17 11:00 | Valentin Guenther v William Griffith | 3-6,1-6 |
| ITF M15 Heraklion | 2020/02/16 11:00 | Valentin Guenther v Hao Yuan Ng | 6-2,6-0 |
| ITF M15 Heraklion | 2020/02/12 13:10 | Valentin Guenther v Alexander Erler | 4-6,6-2,4-6 |
| ITF M15 Manacor | 2020/01/12 10:00 | Valentin Guenther v Christopher Patzanovsky | 4-6,7-5,10-5 |
| ITF M15 Manacor | 2020/01/09 09:00 | Jonas Forejtek v Valentin Guenther | 6-2,1-6,6-4 |
| ITF M15 Manacor | 2020/01/07 10:30 | Valentin Royer v Valentin Guenther | 3-6,1-6 |
| ITF M15 Heraklion | 2019/12/03 09:30 | Jakub Paul v Valentin Guenther | 6-3,6-4 |
| ITF M15 Oberhaching | 2022/02/13 08:00 | Laurin Aerne v Milan Welte | 3-6,3-6 |
| German Championship | 2021/12/09 10:00 | Milan Welte v Luca Gelhardt | 4-6,6-3,6-6 |
| German Championship | 2021/12/08 09:00 | Thomas Jan Dafcik v Milan Welte | 2-6,3-6 |
| ITF M25 Villers Les Nancy | 2021/11/09 12:05 | Antoine Monaco v Milan Welte | 6-1,6-7,6-2 |
| ITF M25 Sarreguemines | 2021/10/27 14:00 | Calvin Hemery v Milan Welte | 6-4,6-2 |
| ITF M25 Hamburg | 2021/10/19 11:25 | Henri Squire v Milan Welte | 6-2,6-2 |
| ITF M25 Hamburg | 2021/10/17 13:15 | Milan Welte v Ben Jones | 6-4,6-4 |
| ITF M25 Hamburg | 2021/10/17 10:10 | Milan Welte v Sean Marcel Saal | 6-1,6-2 |