Stadium: Court Belem Round: 45 Ground: Clay
| 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 |
| Challenger Braga | 2018/05/08 09:00 | Goncalo Oliveira v David Vega Hernandez | 7-6,4-6,6-2 |
| Challenger Braga Qual | 2018/05/06 12:20 | Zhizhen Zhang v David Vega Hernandez | 6-7,6-2,4-6 |
| Challenger Braga Qual | 2018/05/05 14:00 | David Vega Hernandez v Eduard Esteve Lobato | 2-6,6-1,6-3 |
| Challenger Braga Qual | 2018/05/05 10:25 | Goncalo Ferreira v David Vega Hernandez | 3-6,1-6 |
| Challenger Francavilla Qual | 2018/04/21 08:00 | David Vega Hernandez v Elliot Benchetrit | 4-6,2-6 |
| Challenger Tunis Qual | 2018/04/14 11:20 | Pedro Martinez v David Vega Hernandez | 6-1,6-3 |
| Challenger Alicante Qual | 2018/04/01 11:45 | Mario Vilella Martinez v David Vega Hernandez | 6-3,7-6 |
| Challenger Marbella Qual | 2018/03/24 15:55 | David Vega Hernandez v Pedro Cachin | 3-6,4-6 |