Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| 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 Switzerland F2 | 2018/02/14 14:00 | Christopher Heyman v Niels Desein | 6-7,4-6 |
| ITF Switzerland F2 | 2018/02/13 08:00 | Christopher Heyman v Filip Duda | 7-6,6-4 |
| ITF Turkey F18 | 2018/05/07 07:30 | Koray Kirci v Nick Cmager | 6-2,7-5 |
| ITF Turkey F18 | 2018/05/06 07:30 | Koray Kirci v Alexandru Cristian Bodnariuk | 6-3,6-2 |
| ITF Turkey F17 | 2018/05/02 07:30 | Jules Okala v Koray Kirci | 6-2,7-5 |
| ITF Turkey F16 | 2018/04/21 09:30 | Alberto Cammarata v Koray Kirci | 7-5,6-4 |
| ITF Turkey F12 | 2018/03/27 09:05 | Thomas Statzberger v Koray Kirci | 6-1,6-0 |
| ITF Turkey F11 | 2018/03/22 07:30 | Koray Kirci v Juan Pablo Paz | 6-3,5-7,5-7 |
| ITF Turkey F11 | 2018/03/20 09:00 | Koray Kirci v Bogdan Borza | 6-4,7-6 |
| ITF Turkey F8 | 2018/03/01 08:10 | Koray Kirci v Oriol Roca Batalla | 3-6,4-6 |