Stadium: Court 1 Round: 44 Ground: Carpet indoor
| ITF Germany F16 | 2018/10/21 10:30 | Johann Willems v Herman Meeuwes Mattheo Knoop | 6-4,6-3 |
| ITF Germany F5 | 2018/06/28 14:15 | Markus Eriksson v Johann Willems | 6-3,6-0 |
| ITF Germany F5 | 2018/06/26 15:20 | Gibril Diarra v Johann Willems | 1-6,2-6 |
| ITF Romania F1 | 2018/05/22 07:00 | Matthias Haim v Johann Willems | 7-6,7-6 |
| ITF Egypt F16 | 2018/05/02 12:00 | Johann Willems v Zakhar Trapeznikov | 7-5,5-7,6-7 |
| ITF Egypt F16 | 2018/04/30 07:30 | Johann Willems v Vladislav Dubinsky | 6-2,6-4 |
| ITF Egypt F16 | 2018/04/29 08:00 | Johann Willems v Sebastiano M Zorzi | 6-1,6-2 |
| ITF Egypt F15 | 2018/04/26 07:30 | Johann Willems v Nicolo Turchetti | 4-6,6-2,0-6 |
| ITF Germany F16 | 2018/10/21 10:30 | Karlo Cubelic v Jordi Walder | 6-4,3-6,7-6 |
| ITF Germany F16 | 2018/10/21 08:00 | Nenad Vladusic v Karlo Cubelic | 2-6,5-7 |
| ITF Germany F15 | 2018/10/11 15:25 | Stefan Seifert v Karlo Cubelic | 6-4,6-7,6-2 |
| ITF Germany F15 | 2018/10/10 09:00 | Julian kenzlers v Karlo Cubelic | 1-6,1-6 |
| ITF Germany F15 | 2018/10/08 08:00 | Dominik Recek v Karlo Cubelic | 3-6,4-6 |
| ITF Germany F15 | 2018/10/07 09:00 | Karlo Cubelic v David Novotny | 7-5,6-4 |
| ITF Germany F14 | 2018/09/30 07:00 | Karlo Cubelic v Tillmann Erdbories | 3-6,4-6 |
| ITF France F19 | 2018/09/24 11:15 | Karlo Cubelic v Mats Rosenkranz | 5-7,7-6,5-7 |