Stadium: Court 1 Round: 25 Ground: Hardcourt indoor
| ITF Germany F9 | 2017/07/30 08:00 | Tim Van Terheijden v Julian kenzlers | 6-0,6-1 |
| ITF Netherlands F6 | 2018/08/27 10:00 | Alban Meuffels v Karlo Cubelic | 6-4,6-3 |
| ITF Netherlands F6 | 2018/08/26 08:00 | Karlo Cubelic v Edoardo Bottino | 6-3,6-1 |
| ITF Netherlands F6 | 2018/08/26 07:00 | Marek Flinner v Karlo Cubelic | 1-6,2-6 |
| ITF Netherlands F5 | 2018/08/19 08:30 | Karlo Cubelic v Sandro Kopp | 2-6,7-5,6-3 |
| ITF Netherlands F5 | 2018/08/19 08:30 | Maikel Borg v Karlo Cubelic | 6-3,6-4 |
| ITF Netherlands F5 | 2018/08/18 07:00 | Dorian Tomaz Janezic v Karlo Cubelic | 1-6,2-6 |
| ITF Austria F5 Qual | 2018/07/30 08:00 | Umberto Maria Giovannini v Karlo Cubelic | 6-1,6-3 |
| ITF Austria F5 Qual | 2018/07/29 08:00 | Tino Kovacic v Karlo Cubelic | 4-6,2-6 |