Stadium: C Round: 25 Ground: Clay
| ITF Netherlands F4 | 2016/07/05 14:55 | Mertens, Yannick v Karim-Mohamed Maamoun | 3-6,5-7 |
| Segovia, Spain | 2017/08/03 14:30 | Alex De Minaur v Karim-Mohamed Maamoun | 6-2,7-6 |
| Segovia, Spain | 2017/08/01 11:55 | Vega Hernandez, David v Karim-Mohamed Maamoun | 2-6,1-6 |
| Coupe Davis | 2017/07/22 14:00 | Karim-Mohamed Maamoun v Hounkpevi, Felix | 6-0,6-1 |
| Coupe Davis | 2017/07/21 14:00 | Chinamo, Tadiwa v Karim-Mohamed Maamoun | 0-6,1-6 |
| Coupe Davis | 2017/07/19 14:00 | Karim-Mohamed Maamoun v Etienne Niyigena | 6-0,6-0 |
| Coupe Davis | 2017/07/17 15:35 | Karim-Mohamed Maamoun v Sylvester Emmanuel | 6-0,6-3 |
| ITF France F14 | 2017/07/07 09:30 | Tatlot, Johan Sebastien v Karim-Mohamed Maamoun | 6-2,6-2 |
| ITF France F14 | 2017/07/05 09:30 | Pontico, Hugo v Karim-Mohamed Maamoun | 2-6,4-6 |
| ITF Germany F10 | 2017/08/08 12:40 | Mertens, Yannick v von Massow, George | 3-6,4-6 |
| Segovia, Spain | 2017/08/01 08:00 | Goncalo Oliveira v Mertens, Yannick | 6-3,3-6,6-4 |
| ATP Gstaad Qual | 2017/07/22 10:10 | Mertens, Yannick v Gleb Sakharov | 4-6,5-7 |
| Challenger Scheveningen | 2017/07/18 11:40 | Botic Van De Zandschulp v Mertens, Yannick | 4-6,6-3,6-2 |
| ITF France F15 | 2017/07/10 18:00 | Mertens, Yannick v Eremin, Edoardo | 5-7,2-6 |
| Challenger Recanati | 2017/07/05 15:30 | Mertens, Yannick v Quentin Halys | 1-6,4-6 |
| Challenger Recanati | 2017/07/04 08:30 | Mertens, Yannick v Dmitry Popko | 3-6,6-3,7-6 |
| ATP Antalya Qual | 2017/06/25 10:10 | Ramkumar Ramanathan v Mertens, Yannick | 6-3,6-4 |