Ground: Clay
| ITF Spain F31 | 2014/10/17 08:30 | Granollers, Gerard v Mertens, Yannick | 3-6,3-6 |
| ITF Netherlands F4 | 2015/07/09 12:00 | Mertens, Yannick v Arends, Sander | 6-3,6-2 |
| ITF Netherlands F4 | 2015/07/08 11:00 | Mertens, Yannick v Niesten, Miliaan | 6-2,6-3 |
| ITF Netherlands F3 | 2015/07/01 10:00 | Neis, Fabricio v Mertens, Yannick | 6-2,4-6,7-6 |
| ITF Netherlands F3 | 2015/06/30 16:25 | Willekes Macdonald, Robert v Mertens, Yannick | 4-6,2-6 |
| Wimbledon Qual | 2015/06/24 14:45 | Mertens, Yannick v Mathias Bourgue | 6-7,6-3,6-2 |
| Wimbledon Qual | 2015/06/23 10:00 | Krajicek, Austin v Mertens, Yannick | 4-6,6-2,5-7 |
| Challenger Blois | 2015/06/15 16:10 | Mertens, Yannick v Gonzalez, Alejandro | 4-6,2-6 |
| Challenger Caltanissetta | 2015/06/09 09:00 | Mertens, Yannick v Gonzalez, Alejandro | 2-6,3-6 |
| ITF Netherlands F4 | 2015/07/09 10:00 | Van Terheijden, Tim v Granollers, Gerard | 3-6,6-4,4-6 |
| ITF Romania F7 | 2015/07/01 07:00 | Mariano Kestelboim v Granollers, Gerard | 6-4,7-5 |
| ITF Romania F7 | 2015/06/30 06:30 | Zukas, Matias v Granollers, Gerard | 2-6,3-6 |
| ITF Italy F15 | 2015/06/25 11:00 | Kocevar-Desman, Tom v Granollers, Gerard | 7-6,6-4 |
| ITF Italy F15 | 2015/06/24 09:30 | Heras, Patricio v Granollers, Gerard | 6-3,3-6,0-6 |
| ITF Italy F15 | 2015/06/22 12:50 | Mercuri, Fabio v Granollers, Gerard | 4-6,2-6 |
| ITF Italy F14 | 2015/06/17 12:40 | Granollers, Gerard v Galovic, Viktor | 3-6,4-6 |
| ITF Italy F14 | 2015/06/16 18:00 | Granollers, Gerard v Dischinger, Eduardo | 6-3,6-4 |