Stadium: Court 1 - Central Round: 27 Ground: Hardcourt outdoor
| ITF M25 Bagneres-De-Bigorre | 2019/09/05 17:05 | Mertens, Yannick v Patael, Ben | 6-4,3-6,6-4 |
| ITF M25 Bagneres-De-Bigorre | 2019/09/03 11:05 | Mertens, Yannick v Theo Arribage | 6-2,7-6 |
| Piombino, Singles M-ITF-ITA-19A | 2019/08/30 19:00 | Anton Matusevich v Mertens, Yannick | 6-3,6-2 |
| Piombino, Singles M-ITF-ITA-19A | 2019/08/29 19:05 | Andres Gabriel Ciurletti v Mertens, Yannick | 2-6,3-6 |
| Piombino, Singles M-ITF-ITA-19A | 2019/08/28 11:30 | Carlo Alberto Fossati v Mertens, Yannick | 3-6,2-6 |
| ITF M15 Sintra | 2019/08/24 09:30 | Mertens, Yannick v Antoine Escoffier | 3-6,4-6 |
| ITF M15 Sintra | 2019/08/23 11:10 | Cacao, Tiago v Mertens, Yannick | 3-6,7-6,6-7 |
| ITF M15 Sintra | 2019/08/22 09:00 | Stuart Parker v Mertens, Yannick | 6-4,3-6,2-6 |
| ITF M25 Bagneres-De-Bigorre | 2019/09/05 12:55 | Arthur Reymond v Emilien Burnel | 6-0,6-2 |
| ITF M25 Bagneres-De-Bigorre | 2019/09/04 07:30 | Petit, Gabriel v Arthur Reymond | 2-6,6-7 |
| Donostia-San-Sebastian,Singles Quali M-ITF-ESP-23A | 2019/08/29 08:30 | Arthur Reymond v Orlando Luz | 6-4,2-6,3-6 |
| Donostia-San-Sebastian,Singles Quali M-ITF-ESP-23A | 2019/08/28 13:45 | Alberto Barroso Campos v Arthur Reymond | 4-6,5-7 |
| Donostia-San-Sebastian,Singles Quali M-ITF-ESP-23A | 2019/08/26 16:55 | Arthur Reymond v Saez-Royuela Ariza, Alvaro | 7-6,6-2 |
| ITF M25 Santander | 2019/08/21 13:35 | Ojeda Lara, Ricardo v Arthur Reymond | 6-1,6-2 |
| ITF M25 Santander | 2019/08/20 19:15 | Gabarro, Xavier v Arthur Reymond | 2-6,3-6 |
| ITF M25 Santander | 2019/08/20 13:30 | Saez-Royuela Ariza, Alvaro v Arthur Reymond | 4-6,3-6 |