Stadium: Court 2 Round: 45 Ground: Hardcourt outdoor
| ITF M15 - Sharm El Sheikh | 2019/03/11 08:00 | Kai Lemstra v Kristjan Tamm | 2-6,2-6 |
| ITF M15 - Sharm El Sheikh | 2019/03/04 08:00 | George Tsivadze v Kai Lemstra | 2-6,6-4,10-3 |
| ITF M15 Kaarst | 2019/02/06 11:00 | Kai Lemstra v Mats Rosenkranz | 6-7,6-2,4-6 |
| ITF M15 Kaarst | 2019/02/04 20:45 | Tim Heger v Kai Lemstra | 6-4,3-6,9-11 |
| Challenger Koblenz | 2019/01/15 09:00 | Peter Torebko v Kai Lemstra | 6-1,1-6,6-1 |
| ITF - M15 - Monastir | 2019/01/10 10:00 | Kai Lemstra v Jonathan Mridha | 1-6,6-3,2-6 |
| ITF - M15 - Monastir | 2019/01/09 11:45 | Christian Seraphim v Kai Lemstra | 4-6,4-6 |
| ITF Czech Republic F12 | 2018/11/27 09:00 | Remy Bertola v Kai Lemstra | 6-4,6-3 |
| ITF M15 - Sharm El Sheikh | 2019/03/04 11:30 | Pedro Vives Marcos v Dominik Nazaruk | 6-3,6-2 |
| ITF M15 - Sharm El Sheikh | 2019/03/04 08:00 | Denis Parshutin v Dominik Nazaruk | 3-6,4-6 |
| ITF M15 - Sharm El Sheikh | 2019/02/27 13:10 | Adam Moundir v Dominik Nazaruk | 6-4,6-4 |
| ITF M15 - Sharm El Sheikh | 2019/02/25 08:00 | Dominik Nazaruk v Matteo Meneghetti | 6-1,6-1 |
| ITF Czech Republic F12 | 2018/11/27 11:40 | Adrian Obert v Dominik Nazaruk | 6-4,6-3 |
| ITF Czech Republic F12 | 2018/11/26 11:00 | Dominik Langmajer v Dominik Nazaruk | 2-6,4-6 |
| ITF Czech Republic F11 | 2018/11/22 09:00 | Robin Stanek v Dominik Nazaruk | 6-3,7-5 |
| ITF Czech Republic F11 | 2018/11/21 15:10 | Dominik Nazaruk v David Poljak | 2-6,6-3,6-4 |