| ITF M25 Heraklion | 03/14 07:00 | 19 | Elgin Khoeblal v Valentin Guenther | 6-2,7-5 | |
| ITF M25 Heraklion | 03/12 07:00 | 62 | Brett Winters v Valentin Guenther | 2-6,2-6 | |
| ITF M25 Monastir | 04/25 09:00 | 62 | Valentin Guenther v Max Cunat | Retired | |
| ITF M25 Monastir | 04/24 11:00 | 62 | Valentin Guenther v Mikel Martinez | 6-4,6-3 | |
| ITF M25 Monastir | 04/18 09:00 | 62 | Seydina Andre v Valentin Guenther | Retired | |
| ITF M25 Monastir | 04/17 10:30 | 62 | Timofey Stepanov v Valentin Guenther | 6-7,4-6 | |
| ITF M15 Poitiers | 03/13 16:35 | 44 | Valentin Guenther v Lucas Andriamasilalao | Retired | |
| ITF M15 Oberhaching | 02/14 11:00 | 44 | Giovanni Oradini v Valentin Guenther | Retired | |
| ITF M15 Oberhaching | 02/13 16:00 | 44 | Valentin Guenther v Milan Welte | 6-2,6-2 | |
| ITF M15 Oberhaching | 02/13 08:00 | 44 | Valentin Guenther v Thomas Deschamps | 2-6,7-6,11-9 | |
| ITF M15 Heraklion | 02/25 09:30 | 25 | Antonio Cayetano March v Valentin Guenther | Retired | |
| ITF M15 Heraklion | 02/17 11:00 | 44 | Valentin Guenther v William Griffith | 3-6,1-6 |