Stadium: Court 9 Round: 26 Ground: Clay
| ITF Turkey F21 | 2018/05/29 07:30 | Christopher Heyman v Neven Krivokuca | 7-6,6-0 |
| Challenger Lisbon Qual | 2018/05/12 13:35 | Christopher Heyman v David Vega Hernandez | 1-6,3-6 |
| Challenger Braga | 2018/05/08 17:25 | Pedro Sousa v Christopher Heyman | 6-2,6-2 |
| Challenger Guadalajara | 2018/04/17 17:00 | Christopher Heyman v Alexander Sarkissian | 4-6,6-7 |
| Challenger Mexico City | 2018/04/09 22:25 | Christopher Heyman v Adrian Menendez-Maceiras | 6-1,5-7,2-6 |
| ITF Portugal F6 | 2018/03/29 11:00 | Andres Artunedo Martinavarr v Christopher Heyman | 6-2,6-1 |
| ITF Portugal F6 | 2018/03/28 14:45 | Jaime Pulgar-Garcia v Christopher Heyman | 3-6,2-6 |
| ITF Portugal F6 | 2018/03/27 15:20 | Kenneth Raisma v Christopher Heyman | 4-6,7-6,6-7 |
| ITF Ukraine F3 | 2018/05/22 11:45 | Georgii Kravchenko v Nikita Mashtakov | 3-6,6-3,7-5 |
| ITF Ukraine F2 | 2018/05/15 07:00 | Alessandro Petrone v Nikita Mashtakov | 5-7,6-4,6-3 |
| ITF Ukraine F1 | 2018/05/09 07:00 | Nikita Mashtakov v Claudio Fortuna | 4-6,6-2,5-7 |
| ITF Ukraine F1 | 2018/05/07 07:00 | Oleksii Krutykh v Nikita Mashtakov | 6-7,4-6 |
| ITF Tunisia F15 | 2018/04/16 09:00 | Nikita Mashtakov v Alban Meuffels | 3-6,4-6 |
| ITF Tunisia F15 | 2018/04/15 09:00 | Nikita Mashtakov v Mikar Fisher | 6-4,6-3 |
| ITF Tunisia F14 | 2018/04/09 09:00 | Nikita Mashtakov v Ezequiel A Santalla | 3-6,5-7 |
| ITF Tunisia F14 | 2018/04/08 11:30 | Nikita Mashtakov v Martin Van Der Meerschen | 3-6,6-4,7-5 |