Stadium: Court 1 Round: 26 Ground: Clay
| 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 Switzerland F2 | 2018/02/14 14:00 | Christopher Heyman v Niels Desein | 6-7,4-6 |
| ITF USA F32 | 2017/09/24 17:00 | Samuel Shropshire v Tim Ruehl | 3-6,6-3,6-1 |
| ITF USA F30 | 2017/09/10 16:00 | Tim Ruehl v Thibault Forget | 4-6,4-6 |
| ITF USA F30 | 2017/09/09 19:30 | Tim Ruehl v Piers Foley | 6-1,6-7,6-0 |
| ITF Germany F6 | 2017/07/05 13:15 | Louis Wessels v Tim Ruehl | 3-6,4-6 |
| ITF Germany F5 | 2017/06/29 13:00 | Tim Ruehl v Louis Wessels | 4-6,4-6 |
| ITF Germany F5 | 2017/06/27 09:00 | Martin Beran v Tim Ruehl | 2-6,7-5,3-6 |
| ITF Germany F4 | 2017/06/21 09:00 | Adrian Oetzbach v Tim Ruehl | 6-4,6-4 |
| ITF Germany F4 | 2017/06/18 08:00 | Pelle Boerma v Tim Ruehl | 3-6,5-7 |