Stadium: Court 2 Round: 26 Ground: Hardcourt outdoor
| ITF France F16 | 2018/09/04 07:30 | Arthur Reymond v Ollert, Lukas | 7-5,4-6,2-6 |
| ITF Finland F3 | 2018/08/14 09:35 | Ollert, Lukas v Saatela, Leevi | 6-3,6-1 |
| ITF Finland F2 | 2018/08/09 09:30 | Ollert, Lukas v Konecny, Michal | 2-6,4-6 |
| ITF Finland F2 | 2018/08/08 08:00 | Ollert, Lukas v Taylor, Sam | 6-1,7-6 |
| ITF Finland F2 | 2018/08/06 09:10 | Ollert, Lukas v Tuomi, Verneri | 6-1,6-2 |
| ITF Austria F2 | 2018/07/12 11:15 | Peter Heller v Ollert, Lukas | 6-3,6-2 |
| ITF Austria F2 | 2018/07/11 14:40 | Winkler, Georg v Ollert, Lukas | 1-6,2-6 |
| ITF Austria F1 | 2018/07/04 11:10 | Haim, Matthias v Ollert, Lukas | 6-4,6-3 |
| ITF France F16 | 2018/09/02 08:00 | Diaz-Figueroa, Christopher v Pierre, Hugo | 6-3,6-7,6-3 |
| ITF Spain F18 | 2018/07/10 16:55 | Diaz-Figueroa, Christopher v Andres F Canovas | 3-6,3-6 |
| ITF Portugal F11 | 2018/07/05 12:15 | Diaz-Figueroa, Christopher v Ivan Marrero Curbelo | 6-4,4-6,4-6 |
| ITF Portugal F11 | 2018/07/04 10:05 | Diaz-Figueroa, Christopher v Mazon-Hernandez, Rafael | 6-4,7-5 |
| ITF Portugal F10 | 2018/06/29 10:00 | Crepatte, Baptiste v Diaz-Figueroa, Christopher | 6-2,6-1 |
| ITF Portugal F10 | 2018/06/28 12:05 | Daniel Batista v Diaz-Figueroa, Christopher | 3-6,7-5,2-6 |
| ITF Portugal F10 | 2018/06/26 12:20 | Zgombic, Fran Zvonimir v Diaz-Figueroa, Christopher | 3-6,6-1,3-6 |
| ITF Belgium F1 | 2018/06/21 11:05 | Kenneth Raisma v Diaz-Figueroa, Christopher | 6-3,6-1 |