Round: 27 Ground: Hardcourt outdoor
| Segovia, Spain | 2015/08/04 16:00 | Granollers, Marcel v Zampieri, Caio | 6-1,6-1 |
| Umag, Croatia | 2015/07/21 18:00 | Borna Coric v Granollers, Marcel | 6-3,6-3 |
| Wimbledon, London, Great Britain | 2015/07/01 14:40 | Mayer, Leonardo v Granollers, Marcel | 6-3,7-6,6-3 |
| Wimbledon, London, Great Britain | 2015/06/29 10:30 | Tipsarevic, Janko v Granollers, Marcel | 3-6,4-6,2-6 |
| ATP - Madrid | 2015/05/07 18:45 | Granollers, Marcel v Andy Murray | 2-6,0-6 |
| ATP - Madrid | 2015/05/06 17:50 | Gaël Monfils v Granollers, Marcel | 6-7,7-6,4-6 |
| ATP - Barcelone | 2015/04/23 15:45 | Robredo, Tommy v Granollers, Marcel | 6-2,6-2 |
| ATP - Barcelone | 2015/04/22 15:15 | Granollers, Marcel v Tsonga, Jo-Wilfried | 6-4,6-2 |
| Segovia, Spain | 2015/08/05 12:30 | Mertens, Yannick v Kudryavtsev, Alexander | 6-2,6-2 |
| Segovia, Spain | 2015/08/04 08:30 | Mertens, Yannick v Boltz, Sebastien | 6-4,6-2 |
| Challenger Recanati | 2015/07/24 15:00 | Mertens, Yannick v Marton Fucsovics | 4-6,4-6 |
| Challenger Recanati | 2015/07/22 14:00 | Lazov, Alexander v Mertens, Yannick | 0-6,3-6 |
| Challenger Recanati | 2015/07/21 10:30 | Wu, Di v Mertens, Yannick | 6-2,5-7,3-6 |
| ITF Netherlands F4 | 2015/07/12 10:30 | Mertens, Yannick v Yann Marti | 6-4,6-4 |
| ITF Netherlands F4 | 2015/07/11 14:00 | Mertens, Yannick v Banes, Maverick | 3-6,6-1,6-2 |
| ITF Netherlands F4 | 2015/07/10 10:00 | Mertens, Yannick v Granollers, Gerard | 6-2,3-6,6-1 |