Stadium: Court 2 Round: 25 Ground: Clay
| ITF Netherlands F3 | 2018/07/10 13:55 | Gerritsen, Stephan v Kaczynski, Kevin | 7-6,2-6,6-1 |
| ITF Netherlands F5 | 2018/08/19 10:00 | Kaczynski, Kevin v Trismen, Harris | 6-0,6-1 |
| ITF Netherlands F5 | 2018/08/18 08:00 | Kaczynski, Kevin v Ruenger, Roman | 6-1,6-0 |
| ITF Germany F11 | 2018/08/09 09:00 | Kaczynski, Kevin v Benjamin Hassan | 2-6,1-6 |
| ITF Germany F11 | 2018/08/08 10:00 | Chaukulkar, Tejas v Kaczynski, Kevin | 3-6,6-4,1-6 |
| ITF Germany F11 | 2018/08/07 11:40 | Baumann, Daniel v Kaczynski, Kevin | 3-6,0-6 |
| ITF Netherlands F3 | 2018/07/10 13:55 | Gerritsen, Stephan v Kaczynski, Kevin | 7-6,2-6,6-1 |
| ITF Netherlands F3 | 2018/07/08 11:30 | Kaczynski, Kevin v Naser, Javier | 6-0,6-7,7-6 |
| ITF Netherlands F3 | 2018/07/07 14:00 | Kaczynski, Kevin v Anselmo, Baptiste | 6-1,3-6,6-3 |
| ITF Netherlands F4 | 2018/08/14 11:25 | Gerritsen, Stephan v Michiel de Krom | 4-6,2-6 |
| ITF Belgium F7 | 2018/08/07 12:30 | Vanneste, Jeroen v Gerritsen, Stephan | 6-3,6-4 |
| ITF Belgium F5 | 2018/07/26 09:00 | Merckx, Jonas v Gerritsen, Stephan | 6-2,6-0 |
| ITF Belgium F5 | 2018/07/25 15:30 | Watson, Andrew v Gerritsen, Stephan | 3-6,6-7 |
| ITF Belgium F5 | 2018/07/23 10:00 | Buvaysar Gadamauri v Gerritsen, Stephan | 2-6,3-6 |
| ITF Belgium F4 | 2018/07/19 09:00 | Merckx, Jonas v Gerritsen, Stephan | 6-3,6-1 |
| ITF Belgium F4 | 2018/07/18 10:05 | Simon Beaupain v Gerritsen, Stephan | 5-7,6-4,2-6 |
| ITF Belgium F4 | 2018/07/17 12:00 | Irigaray Guarne, Pablo v Gerritsen, Stephan | 3-6,0-6 |