Stadion: Court 3 Round: 25 Ground: Hardcourt indoor
| ITF - Deutschland F14 | 2017/10/08 11:30 | Robert Strombachs v Valentin Guenther | 6-2,3-6,4-6 |
| ITF - Tschechien F11 - Qualifikation | 2018/11/20 09:00 | Valentin Guenther v Mateusz Terczynski | 2-6,6-4,6-4 |
| ITF - Tschechien F11 - Qualifikation | 2018/11/19 12:30 | Valentin Guenther v Emilien Voisin | 6-1,6-2 |
| ITF - Tschechien F10 | 2018/11/14 14:40 | Robin Stanek v Valentin Guenther | 7-5,7-6 |
| ITF - Tschechien F9 | 2018/11/08 15:10 | Valentin Guenther v Jonas Forejtek | 4-6,6-7 |
| ITF - Tschechien F9 | 2018/11/06 09:00 | Martin Vondrak v Valentin Guenther | 3-6,4-6 |
| ITF - Deutschland F16 | 2018/10/23 13:10 | Valentin Guenther v Evgeny Tyurnev | 2-6,2-6 |
| ITF - Deutschland F14 | 2018/10/04 10:00 | Christoph Negritu v Valentin Guenther | 3-6,7-5,7-5 |
| ITF - Deutschland F14 | 2018/10/03 11:35 | Jakob Aichhorn v Valentin Guenther | 3-6,2-6 |
| ITF - Thailand F9 | 2018/11/14 02:00 | Alexandar Lazarov v Robert Strombachs | 6-3,6-1 |
| ITF - Thailand F9 | 2018/11/12 04:30 | Natthasith Kunsuwan v Robert Strombachs | 2-6,0-6 |
| ITF - Thailand F8 | 2018/11/04 02:00 | Robert Strombachs v Sebastian Prechtel | 3-6,3-6 |
| ITF - Vietnam F5 | 2018/11/02 03:00 | Robert Strombachs v Nam Hoang Ly | 4-6,2-6 |
| ITF - Vietnam F5 | 2018/11/01 03:00 | Robert Strombachs v Samuel Shropshire | 6-7,6-1,6-1 |
| ITF - Vietnam F5 | 2018/10/30 03:00 | Robert Strombachs v Nitin Kumar Sinha | 6-1,6-4 |
| ITF - Vietnam F4 | 2018/10/25 04:30 | Robert Strombachs v Yu Hsiou Hsu | 6-4,0-6,5-7 |
| ITF - Vietnam F4 | 2018/10/24 02:30 | Aryan Goveas v Robert Strombachs | 6-3,5-7,1-6 |