Round: 62 Ground: Clay
| ITF Croatia F3 | 2018/03/18 10:30 | Gaspar Zimbrek-Turkovic v Buvaysar Gadamauri | 1-6,2-6 |
| ITF Serbia F3 | 2018/08/22 10:40 | Quentin Folliot v Maximilian Gatev | 6-2,6-4 |
| ITF Serbia F2 | 2018/08/14 08:00 | Maximilian Gatev v Marek Semjan | 7-5,4-6,2-6 |
| ITF Serbia F1 Qual | 2018/08/04 07:00 | Stevan Popovic v Maximilian Gatev | 6-3,6-7,6-3 |
| ITF Spain F19 Qual | 2018/07/14 12:00 | Maximilian Gatev v Alvaro Blanco Damea | 4-6,6-4,3-6 |
| ITF Netherlands F3 | 2018/07/07 14:00 | Daniel De Jonge v Maximilian Gatev | 6-7,6-2,6-1 |
| ITF Netherlands F3 | 2018/07/07 11:30 | Maximilian Gatev v Flemming Peters | 6-3,6-3 |
| ITF Belgium F3 Qual | 2018/07/01 08:00 | Maximilian Gatev v Teodor Giusca | 4-6,3-6 |
| ITF Belgium F3 Qual | 2018/06/30 07:30 | Maxime Vandendooren v Maximilian Gatev | 4-6,1-6 |