Stadium: Center Court Round: 28 Ground: Clay
| ITF Netherlands F1 | 2018/06/29 13:00 | Fransen, Stephan v Geens, Clement | 3-6,3-6 |
| ITF Netherlands F1 | 2018/06/28 15:40 | Gelhardt, Luca v Geens, Clement | 4-6,3-6 |
| ITF Netherlands F1 | 2018/06/26 15:10 | Michiel de Krom v Geens, Clement | 1-6,3-6 |
| ITF Belgium F1 | 2018/06/23 14:00 | Netuschil, Marvin v Geens, Clement | 7-6,6-1 |
| ITF Belgium F1 | 2018/06/21 11:05 | Ryan Nijboer v Geens, Clement | 2-6,1-6 |
| ITF Belgium F1 | 2018/06/19 13:40 | Gelhardt, Luca v Geens, Clement | 3-6,4-6 |
| ITF Belgium F1 | 2018/06/19 11:00 | Gelhardt, Luca v Geens, Clement | 3-6,4-5 |
| ITF Spain F15 | 2018/06/17 09:30 | Geens, Clement v Sumit Sarkar | 7-5,7-5 |
| ITF Netherlands F1 | 2018/06/29 10:20 | Gerritsen, Stephan v Dhoe, Benjamin | 3-6,6-2,6-3 |
| ITF Netherlands F1 | 2018/06/28 11:40 | Gerritsen, Stephan v Ryan Nijboer | 6-4,7-6 |
| ITF Netherlands F1 | 2018/06/27 10:40 | Gabriel Decamps v Gerritsen, Stephan | 3-6,6-0,4-6 |
| ITF Belgium F1 | 2018/06/20 08:00 | Kenneth Raisma v Gerritsen, Stephan | 7-6,6-4 |
| Turkey F20, Singles Qualifying | 2018/05/23 09:50 | Cengiz Aksu v Gerritsen, Stephan | 6-4,6-2 |
| ITF Nigeria F3 | 2018/05/01 09:00 | Singh, Dalwinder v Gerritsen, Stephan | 6-2,7-6 |
| ITF Nigeria F3 Qual | 2018/04/29 10:30 | Gerritsen, Stephan v Jacobs, Tuki | 6-7,7-6,6-1 |
| Nigeria F2, Singles | 2018/04/27 10:00 | Neuchrist, Maximilian v Gerritsen, Stephan | 6-2,6-1 |