Stadium: Court 5 Round: 27 Ground: Hardcourt outdoor
| ITF Turkey F21 | 2018/05/31 11:10 | Heyman, Christopher v Jonas Trinker | 6-7,6-3,7-6 |
| ITF Turkey F21 | 2018/05/29 07:30 | Heyman, Christopher v Krivokuca, Neven | 7-6,6-0 |
| Challenger Lisbon Qual | 2018/05/12 13:35 | Heyman, Christopher v Vega Hernandez, David | 1-6,3-6 |
| Challenger Braga | 2018/05/08 17:25 | Sousa, Pedro v Heyman, Christopher | 6-2,6-2 |
| Challenger Guadalajara | 2018/04/17 17:00 | Heyman, Christopher v Sarkissian, Alexander | 4-6,6-7 |
| Challenger - Mexique | 2018/04/09 22:25 | Heyman, Christopher v Menendez-Maceiras, Adrian | 6-1,5-7,2-6 |
| ITF Portugal F6 | 2018/03/29 11:00 | Artunedo Martinav. v Heyman, Christopher | 6-2,6-1 |
| ITF Portugal F6 | 2018/03/28 14:45 | Pulgar-Garcia, Jaime v Heyman, Christopher | 3-6,2-6 |
| ITF Turkey F21 | 2018/05/31 07:30 | Patino, Luis v Winkler, Georg | 6-4,5-7,3-6 |
| ITF Turkey F21 | 2018/05/30 09:00 | Winkler, Georg v Zaitcev, Anton | 7-5,6-2 |
| ITF Italy F7 Qual | 2018/04/09 12:30 | Facundo Juarez v Winkler, Georg | 6-3,6-2 |
| ITF Italy F7 Qual | 2018/04/08 13:30 | Loccisano, Mike v Winkler, Georg | 4-6,4-6 |
| ITF Italy F6 Qual | 2018/04/01 12:00 | Winkler, Georg v Alexander Weis | 5-7,5-7 |
| ITF Italy F6 Qual | 2018/03/31 08:00 | Santin, Alexis v Winkler, Georg | 3-6,1-6 |
| ITF Italy F4 Qual | 2018/03/19 13:00 | Pontoglio, Davide v Winkler, Georg | 7-5,6-2 |
| ITF Italy F4 Qual | 2018/03/18 14:00 | Strokan, Artem v Winkler, Georg | 3-6,2-6 |