Stadium: Court Central Round: 27 Ground: Clay
| ITF France F8 | 2018/04/25 09:00 | Gray, Jonathan v Jacq, Gregoire | 0-6,2-6 |
| ITF France F8 | 2018/04/24 10:55 | Maxence Beauge v Jacq, Gregoire | 2-6,3-6 |
| Tunis, Tunisia, Qualifying | 2018/04/15 11:45 | Gulbis, Ernests v Jacq, Gregoire | 7-6,6-2 |
| Tunis, Tunisia, Qualifying | 2018/04/14 14:40 | Brechemier, Thomas v Jacq, Gregoire | 0-6,1-6 |
| Challenger Le Gosier Qual | 2018/03/26 16:50 | Jacq, Gregoire v Rochette, Laurent | 4-6,1-6 |
| Challenger Le Gosier Qual | 2018/03/25 18:35 | Jacq, Gregoire v Maytin, Roberto | 6-2,6-0 |
| Challenger Drummondville Qual | 2018/03/12 15:10 | Gomez, Alejandro v Jacq, Gregoire | 6-3,7-6 |
| Challenger Drummondville Qual | 2018/03/11 18:30 | Martinez, Luis David v Jacq, Gregoire | 2-6,4-6 |
| ITF France F8 | 2018/04/26 09:00 | Vibert, Francois Arthur v Merckx, Jonas | 0-6,6-4,6-7 |
| ITF France F8 | 2018/04/24 08:00 | Merckx, Jonas v Lucas Miedler | 6-0,3-6,7-5 |
| ITF Turkey F13 | 2018/04/04 08:40 | Orlando Luz v Merckx, Jonas | 6-4,6-4 |
| Qatar F3, Singles | 2018/03/14 12:00 | El Midhawy, Adam v Merckx, Jonas | 7-6,6-2 |
| Qatar F3, Singles | 2018/03/13 18:05 | Merckx, Jonas v Marsel Ilhan | 6-4,3-6,6-4 |
| ITF Qatar F2 | 2018/03/08 12:00 | Simon, Tobias v Merckx, Jonas | 4-6,7-6,6-2 |
| ITF Qatar F2 | 2018/03/06 13:30 | Ward, James v Merckx, Jonas | 7-5,4-6,2-6 |
| Qatar F1, Singles | 2018/03/01 12:00 | Merckx, Jonas v Giacalone, Omar | 0-6,7-5,6-7 |