Round: 62 Ground: Hardcourt outdoor
| ITF Greece F4 | 2018/03/21 08:00 | Balzerani, Riccardo v Robert Strombachs | 6-2,6-2 |
| ITF Greece F4 | 2018/03/19 08:00 | Robert Strombachs v Kristjan Tamm | 6-4,6-7,6-0 |
| ITF Greece F4 | 2018/03/17 07:30 | Johnson, Yates v Robert Strombachs | 3-6,1-6 |
| ITF Greece F3 | 2018/03/12 08:00 | Van Terheijden, Tim v Robert Strombachs | 6-3,6-0 |
| ITF Greece F3 | 2018/03/11 11:00 | Robert Strombachs v Feitt, Franco | 6-4,6-2 |
| ITF Greece F3 | 2018/03/10 10:00 | Robert Strombachs v Niculae, Vlad Cristian | 6-1,6-2 |
| ITF Greece F2 | 2018/03/03 07:30 | Robert Strombachs v Maruscak, Matej | 3-6,6-7 |
| ITF Germany F2 Qual | 2018/01/22 16:20 | Boehler, Dominik v Robert Strombachs | 6-3,6-4 |
| ITF Greece F4 | 2018/03/18 09:30 | Daniel De Jonge v Berg, Conor | 1-6,4-6 |
| ITF Greece F4 | 2018/03/17 08:00 | Miki, Pietro v Daniel De Jonge | 0-6,2-6 |
| ITF Germany F15 | 2017/10/15 07:00 | Daniel De Jonge v Kuerschner, Alexander | 4-6,4-6 |
| ITF Germany F14 | 2017/10/09 10:00 | Torski, Osman v Daniel De Jonge | 6-3,6-2 |
| ITF Germany F14 | 2017/10/08 11:30 | Daniel De Jonge v Kalambay, Jessy | 7-6,6-4 |
| ITF Belgium F11 | 2017/08/26 10:30 | Daniel De Jonge v Anton Chekhov | 3-6,0-6 |
| ITF Netherlands F5 | 2017/08/13 11:00 | Bodin, Joris v Daniel De Jonge | 6-0,6-4 |
| ITF Netherlands F5 | 2017/08/12 08:00 | Slager, Tim v Daniel De Jonge | 4-6,5-7 |