Stadium: Court 5 Round: 26 Ground: Hardcourt outdoor
| 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 Turkey F21 | 2018/05/29 07:30 | Mert Naci Turker v Jonas Trinker | 2-6,1-6 |
| ITF Sweden F3 | 2018/05/22 10:10 | Jonas Trinker v Alexander Ritschard | 3-6,1-6 |
| ITF Sweden F3 Qual | 2018/05/20 09:00 | Jonas Trinker v Adam Heinonen | 7-6,6-1 |
| ITF Sweden F2 | 2018/05/16 10:15 | Lukas Ollert v Jonas Trinker | 6-1,6-4 |
| ITF Sweden F2 | 2018/05/14 11:50 | Jonas Trinker v Linus Frost | 6-2,7-6 |
| ITF Turkey F17 | 2018/05/03 07:30 | Juan Pablo Varillas v Jonas Trinker | 6-2,6-1 |
| ITF Turkey F17 | 2018/05/02 07:30 | Jonas Trinker v Gabriel Schmidt | 6-4,3-6,7-6 |
| ITF Turkey F16 | 2018/04/21 09:30 | Gorazd Srbljak v Jonas Trinker | 6-4,6-3 |