Round: 23 Ground: Hardcourt outdoor
| Washington, USA | 2015/08/04 20:00 | Lacko, Lukas v Steve Johnson | 5-7,3-6 |
| Newport, USA | 2015/07/15 17:30 | Lacko, Lukas v Sock, Jack | 6-3,6-7,4-6 |
| Newport, USA | 2015/07/14 15:00 | Desein, Niels v Lacko, Lukas | 3-6,6-3,2-6 |
| Wimbledon, London, Great Britain | 2015/06/29 14:25 | Lacko, Lukas v Steve Johnson | 3-6,7-6,6-4,1-6,4-6 |
| ATP Halle | 2015/06/15 13:50 | Falla, Alejandro v Lacko, Lukas | 6-4,3-6,6-1 |
| ATP Halle Qual | 2015/06/14 11:30 | Lacko, Lukas v Melzer, Jurgen | 4-6,6-3,7-5 |
| ATP Halle Qual | 2015/06/13 13:50 | Lacko, Lukas v Gojowczyk, Peter | 7-6,3-6,6-4 |
| Miami, USA, Qualifying | 2015/03/23 19:30 | Lacko, Lukas v Denis Kudla | 6-7,6-4,7-5 |
| Segovia, Spain | 2015/08/08 09:50 | Granollers, Marcel v Evgeny Donskoy | 2-6,6-7 |
| Segovia, Spain | 2015/08/07 10:50 | Granollers, Marcel v Mertens, Yannick | 6-2,6-4 |
| 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 |