Round: 44 Ground: Hardcourt outdoor
| ITF M15 Sharm El Sheikh | 2019/11/03 08:00 | Rotem Sobol v Martin Dobry | 0-6,2-6 |
| ITF M15 Tabarka | 2019/09/23 14:00 | Gregorio Lulli v Martin Dobry | 6-1,7-6 |
| ITF M15 Tabarka | 2019/09/23 08:00 | Martin Dobry v Giovanni Rizzuti | 6-4,6-0 |
| ITF M15 Bratislava | 2019/08/26 08:00 | Martin Dobry v Jiri Barnat | 6-7,3-6 |
| ITF M15 Baja | 2019/08/14 15:00 | Martin Dobry v Mate Valkusz | 4-6,1-6 |
| ITF M15 Baja | 2019/08/13 09:55 | Martin Dobry v Oliver Varga-Toth | 6-1,6-1 |
| ITF M15 Baja | 2019/08/12 08:00 | Nemanja Subanovic v Martin Dobry | 4-6,1-6 |
| ITF M15 Piestany | 2019/07/15 07:00 | Vladislav Melnic v Martin Dobry | 6-3,5-7,10-7 |
| ITF M15 Sharm El Sheikh | 2019/10/29 08:00 | Timur Kiyamov v Kai Lemstra | 6-3,7-6 |
| ITF M15 Sharm El Sheikh | 2019/10/28 09:00 | Daniel Kossek v Kai Lemstra | 1-6,1-6 |
| ITF M15 Bad Salzdetfurth | 2019/10/08 09:00 | Kai Lemstra v Christopher Patzanovsky | 6-7,4-6 |
| ITF M15 Ueberlingen | 2019/08/21 09:55 | Peter Heller v Kai Lemstra | 5-7,6-2,6-2 |
| ITF M15 Trier | 2019/08/13 11:05 | Kai Lemstra v Jordi Walder | 4-6,2-6 |
| Challenger Augsburg | 2019/08/05 12:25 | Facundo Mena v Kai Lemstra | 6-4,6-2 |
| ITF M15 Bad Schussenried | 2019/07/23 14:35 | Nik Razborsek v Kai Lemstra | 6-2,6-3 |
| ITF M15 Bad Schussenried | 2019/07/22 13:00 | Roy Sarut De Valk v Kai Lemstra | 5-7,4-6 |