Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF Finland F4 | 2018/11/14 11:00 | Christopher Heyman v Christian Seraphim | 7-5,6-3 |
| ITF Finland F4 | 2018/11/12 13:20 | Christian Seraphim v Mikael Martikainen | 6-1,6-3 |
| ITF Finland F4 | 2018/11/11 10:35 | Christian Seraphim v Igor Shrolik | 6-1,6-4 |
| ITF Finland F4 | 2018/11/10 13:45 | Christian Seraphim v Roni Rikkonen | 7-5,6-1 |
| Challenger Eckental | 2018/10/27 18:30 | Christian Seraphim v Benjamin Bonzi | 6-7,4-6 |
| ITF Czech Republic F7 | 2018/10/24 14:10 | Christian Seraphim v Petr Nouza | 6-3,3-6,4-6 |
| ITF Czech Republic F7 | 2018/10/23 09:10 | Christian Seraphim v Antonin Bolardt | 7-6,7-5 |
| ITF Czech Republic F7 | 2018/10/22 10:00 | Christian Seraphim v Alessandro Ricci | 6-1,6-1 |
| ITF Czech Republic F12 | 2018/11/27 09:00 | Remy Bertola v Kai Lemstra | 6-4,6-3 |
| ITF Czech Republic F12 | 2018/11/26 09:00 | David Juras v Kai Lemstra | 6-4,3-6,6-7 |
| ITF Czech Republic F11 Qual | 2018/11/19 11:00 | Wojciech Marek v Kai Lemstra | 3-6,6-3,7-5 |
| Challenger Eckental | 2018/10/27 17:00 | Kai Lemstra v Jan Satral | 5-7,1-6 |
| ITF Czech Republic F7 | 2018/10/23 11:10 | Kai Lemstra v Piotr Grynkowski | 4-6,6-1,4-6 |
| ITF Czech Republic F7 | 2018/10/22 14:00 | Kai Lemstra v Vitek Horak | 6-3,6-2 |
| Challenger Ismaning | 2018/10/16 15:25 | Gregoire Barrere v Kai Lemstra | 7-6,6-3 |
| ITF Germany F15 | 2018/10/09 12:00 | Kai Lemstra v Sandro Ehrat | 1-6,4-6 |