Stadium: Centre Court Round: 29
| ATP Gstaad Qual | 2017/07/22 10:10 | Mertens, Yannick v Gleb Sakharov | 4-6,5-7 |
| Challenger Quimper Qual | 2017/01/29 17:05 | Mertens, Yannick v Gleb Sakharov | 6-4,4-6,4-6 |
| France F4, Singles | 2016/03/01 12:50 | Mertens, Yannick v Gleb Sakharov | 7-6,6-3 |
| ITF Portugal F18 | 2018/09/29 09:30 | Gleb Sakharov v Glasspool, Lloyd | 6-7,7-6,6-3 |
| ITF Portugal F18 | 2018/09/28 10:00 | Gleb Sakharov v Desein, Niels | 6-2,6-4 |
| ITF Portugal F18 | 2018/09/27 10:50 | Gleb Sakharov v Adil Kalyanpur | 6-4,6-4 |
| ITF Portugal F18 | 2018/09/26 09:00 | Gleb Sakharov v Tikhomirov, Maksim | 6-3,6-3 |
| Challenger Meerbusch | 2018/08/13 10:20 | Gleb Sakharov v Dimitar Kuzmanov | 3-6,0-6 |
| Sopot, Pologne | 2018/07/31 09:00 | Gleb Sakharov v Jan Choinski | 6-0,4-6,1-6 |
| Challenger Tampere | 2018/07/23 10:00 | Gleb Sakharov v Baldi, Filippo | 6-7,2-6 |
| Germany F8, Singles | 2018/07/17 11:00 | Gleb Sakharov v Antonescu, Vasile | 6-7,6-1,3-6 |
| ITF Portugal F18 | 2018/09/29 12:25 | Cacao, Tiago v Mertens, Yannick | 4-6,1-6 |
| ITF Portugal F18 | 2018/09/28 14:00 | Marek Gengel v Mertens, Yannick | 6-2,6-7,1-6 |
| ITF Portugal F18 | 2018/09/27 09:00 | Pedro Araujo v Mertens, Yannick | 2-6,3-6 |
| ITF Portugal F18 | 2018/09/26 10:20 | Dischinger, Eduardo v Mertens, Yannick | 0-6,6-7 |
| ITF France F18 | 2018/09/23 13:00 | Cornut-Chauvinc, Antoine v Mertens, Yannick | 6-7,2-6 |
| ITF France F18 | 2018/09/22 13:50 | Antoine Escoffier v Mertens, Yannick | 6-7,6-3,6-7 |
| ITF France F18 | 2018/09/21 10:30 | Avidzba, Alen v Mertens, Yannick | 1-6,0-6 |
| ITF France F18 | 2018/09/19 11:35 | Sora Fukuda v Mertens, Yannick | 3-6,4-6 |