Stadium: Court TR1 Round: 26 Ground: Hardcourt indoor
| ITF France F13 | 2018/07/13 17:20 | Yannick Mertens v Sora Fukuda | 6-2,3-6,4-6 |
| ITF France F18 | 2018/09/18 09:00 | Yanais Laurent v Sora Fukuda | 4-6,0-6 |
| ITF France F16 | 2018/09/03 17:10 | Sora Fukuda v Albano Olivetti | 3-6,5-7 |
| ITF Portugal F15 | 2018/08/18 10:50 | Sora Fukuda v Frederico Ferreira Silva | 3-6,3-6 |
| ITF Portugal F15 | 2018/08/17 13:05 | Sora Fukuda v Pablo Vivero Gonzalez | 7-6,2-6,6-4 |
| ITF Portugal F15 | 2018/08/16 11:15 | Sora Fukuda v Luis Faria | 6-3,6-2 |
| ITF Portugal F15 | 2018/08/14 09:00 | Sora Fukuda v Alexandre Tsuchiya | 6-3,6-4 |
| ITF Portugal F14 | 2018/08/08 15:35 | Sora Fukuda v Alexander Donski | 6-7,3-6 |
| ITF France F13 | 2018/07/14 20:05 | Aslan Karatsev v Sora Fukuda | 6-3,6-0 |
| ITF France F18 | 2018/09/18 09:35 | Tony Bourcet v Yannick Mertens | 4-6,2-6 |
| ITF France F16 | 2018/09/07 09:20 | Yannick Mertens v Albano Olivetti | 1-6,5-7 |
| ITF France F16 | 2018/09/05 09:00 | Yannick Mertens v Gabriel Petit | 6-4,6-4 |
| ITF France F16 | 2018/09/04 10:15 | Yannick Mertens v Constantin Bittoun Kouzmine | 4-6,6-4,6-4 |
| Challenger - Mallorca | 2018/08/26 10:45 | Yannick Mertens v Tobias Simon | 7-6,4-6,4-6 |
| ITF Netherlands F4 | 2018/08/16 10:30 | Yannick Mertens v Kazuki Nishiwaki | 3-6,6-7 |
| ITF Netherlands F4 | 2018/08/14 14:15 | Yannick Mertens v Sidane Pontjodikromo | 6-1,4-6,6-4 |
| Challenger Pullach Qual | 2018/08/04 15:25 | Yannick Mertens v Steven Diez | 2-6,2-6 |