Stadium: Court 4 Round: 44 Ground: Hardcourt outdoor
| ITF Qatar F1 Qual | 2018/02/24 10:40 | Erik Helin v Marco Brugnerotto | 0-6,2-6 |
| ITF Qatar F5 Qual | 2016/12/02 23:00 | Erik Helin v Michele Longo | 0-6,2-6 |
| ITF Germany F14 | 2018/10/04 10:00 | Christoph Negritu v Valentin Guenther | 3-6,7-5,7-5 |
| ITF Germany F14 | 2018/10/03 11:35 | Jakob Aichhorn v Valentin Guenther | 3-6,2-6 |
| ITF Belgium F10 | 2018/08/28 08:00 | Valentin Guenther v Mariano Kestelboim | 3-6,1-6 |
| ITF Germany F13 | 2018/08/21 08:00 | Kai Wehnelt v Valentin Guenther | 7-5,6-1 |
| ITF Netherlands F3 | 2018/07/11 12:50 | Arklon H D Pino v Valentin Guenther | 3-6,6-3,7-5 |
| ITF Netherlands F3 | 2018/07/10 12:00 | Yanais Laurent v Valentin Guenther | 3-6,3-6 |
| ITF Netherlands F3 | 2018/07/07 09:30 | Valentin Guenther v Noe Khlif | 4-6,6-2,6-4 |
| ITF Netherlands F3 | 2018/07/07 08:00 | Valentin Guenther v Roland Stuurman | 3-6,6-2,6-2 |