Stadium: Court Central Round: 26 Ground: Hardcourt indoor
| ITF M25 Plaisir | 2019/09/21 14:30 | Yannick Mertens v Gregoire Jacq | 6-4,7-6 |
| Challenger Rennes | 2019/01/21 09:00 | Gregoire Jacq v Yannick Mertens | 7-5,6-2 |
| ITF France F19 | 2016/09/21 09:00 | Gregoire Jacq v Yannick Mertens | 4-6,2-6 |
| ITF France F4 | 2015/03/04 18:55 | Gregoire Jacq v Yannick Mertens | 4-6,7-6,1-6 |
| ITF M25 Rodez | 2019/10/16 10:00 | Albano Olivetti v Yannick Mertens | 3-6,3-6 |
| ITF M25 Oliveira De Azemeis | 2019/09/27 10:00 | Yannick Mertens v Skander Mansouri | 3-6,5-7 |
| ITF M25 Oliveira De Azemeis | 2019/09/26 10:00 | Yannick Mertens v John Echeverria | 6-2,6-4 |
| ITF M25 Oliveira De Azemeis | 2019/09/25 10:00 | Yannick Mertens v Terence Das | 6-2,2-6,6-2 |
| ITF M25 Plaisir | 2019/09/22 12:30 | Christopher Heyman v Yannick Mertens | 3-6,0-6 |
| ITF M25 Plaisir | 2019/09/21 14:30 | Yannick Mertens v Gregoire Jacq | 6-4,7-6 |
| ITF M25 Plaisir | 2019/09/20 11:30 | Yannick Mertens v Valentin Royer | 7-6,6-3 |
| ITF M25 Plaisir | 2019/09/19 11:30 | Yannick Mertens v Joffrey De Schepper | 6-1,4-6,6-4 |
| ITF M25 Rodez | 2019/10/16 11:35 | Gregoire Jacq v Joffrey De Schepper | 6-4,6-3 |
| ITF M25 Nevers | 2019/10/04 10:00 | Quentin Halys v Gregoire Jacq | 4-6,6-3,6-4 |
| ITF M25 Nevers | 2019/10/03 16:00 | Maxence Beauge v Gregoire Jacq | 3-6,7-6,4-6 |
| ITF M25 Nevers | 2019/10/02 10:30 | Axel Garcian v Gregoire Jacq | 3-6,2-6 |
| ITF M25 Plaisir | 2019/09/21 14:30 | Yannick Mertens v Gregoire Jacq | 6-4,7-6 |
| ITF M25 Plaisir | 2019/09/20 12:55 | Gregoire Jacq v Lucas Poullain | 6-4,6-3 |
| ITF M25 Plaisir | 2019/09/19 13:35 | Gregoire Jacq v Jonathan Eysseric | 7-6,7-6 |
| ITF M25 Mulhouse | 2019/09/13 10:00 | Gregoire Jacq v Tobias Simon | 4-6,6-7 |