Stadium: Court 2 Oberhaching Round: 25 Ground: Carpet indoor
| Hungary F6, Singles | 2018/08/23 14:00 | Semjan, Marek v Rodriguez, Cristian | 7-6,2-6,3-6 |
| Hungary F6, Singles | 2018/08/22 12:10 | Semjan, Marek v Glvac, Andrej | 6-2,6-1 |
| Hungary F6, Singles | 2018/08/20 09:00 | Semjan, Marek v Samuel Puskar | 6-3,6-1 |
| Hungary F6, Singles | 2018/08/19 08:00 | Semjan, Marek v Toth, Gabor-Janos | 6-1,4-6,6-4 |
| ITF Serbia F2 | 2018/08/16 08:00 | Semjan, Marek v Tikhomirov, Maksim | 1-6,6-1,1-6 |
| ITF Serbia F2 | 2018/08/14 08:00 | Gatev, Maximilian v Semjan, Marek | 7-5,4-6,2-6 |
| ITF Slovakia F3 | 2018/08/08 09:05 | Semjan, Marek v Alexander Shevchenko | 4-6,6-4,1-6 |
| ITF Slovakia F2 | 2018/08/02 08:50 | Antonio Massara v Semjan, Marek | 6-2,6-3 |
| ITF Germany F14 | 2018/10/01 10:00 | Matuszewski, Piotr v Laurin Aerne | 3-6,2-6 |
| ITF Germany F14 | 2018/09/30 07:00 | Gruenig, Gian v Laurin Aerne | 4-6,2-6 |
| ITF Germany F13 | 2018/08/19 14:00 | Lenz, Julian v Laurin Aerne | 6-1,6-1 |
| ITF Austria F6 | 2018/08/04 12:45 | Aichhorn, Jakob v Laurin Aerne | 6-0,6-1 |
| ITF Austria F6 | 2018/08/04 07:00 | Laurin Aerne v Abou Boutros, Alexander | 6-0,6-0 |
| ITF Belgium F6 Qual | 2018/07/28 12:00 | Laurin Aerne v Damiens, Antoine | 3-6,2-6 |
| ITF Austria F2 | 2018/07/07 07:15 | Cancel, Thibault v Laurin Aerne | 6-2,6-4 |
| ITF Austria F1 | 2018/07/02 09:00 | Laurin Aerne v Veldheer, Mick | 4-6,4-6 |