Round: 45 Ground: Hardcourt outdoor
| Wimbledon Qual | 2015/06/22 16:35 | Clezar, Guilherme v Westerhof, Boy | 5-7,4-6 |
| Challenger Blois | 2015/06/18 12:20 | Calvin Hemery v Clezar, Guilherme | 6-4,4-6,6-2 |
| Challenger Blois | 2015/06/16 17:55 | Escobar, Gonzalo v Clezar, Guilherme | 6-3,4-6,6-7 |
| Challenger Caltanissetta | 2015/06/12 12:00 | Marco Cecchinato v Clezar, Guilherme | 6-0,6-0 |
| Challenger Caltanissetta | 2015/06/10 13:40 | Ungur, Adrian v Clezar, Guilherme | 4-6,6-7 |
| Challenger Caltanissetta | 2015/06/08 14:50 | Gonzalo Lama v Clezar, Guilherme | 7-6,2-6,2-6 |
| Challenger Mestre | 2015/06/04 11:30 | Nicolas Jarry v Clezar, Guilherme | 6-3,6-4 |
| Challenger Mestre | 2015/06/02 10:00 | Arnaboldi, Andrea v Clezar, Guilherme | 7-6,1-6,1-6 |
| Newport, USA | 2015/07/14 18:05 | Harrison, Ryan v Sugita, Yuichi | 1-6,7-5,3-6 |
| Wimbledon Qual | 2015/06/22 17:45 | Guido Andreozzi v Harrison, Ryan | 7-6,4-6,6-4 |
| ATP Halle Qual | 2015/06/13 10:30 | Harrison, Ryan v Tatsuma Ito | 4-6,2-6 |
| ATP Houston Qual | 2015/04/04 16:45 | Thiago Monteiro v Harrison, Ryan | 4-6,7-6,6-2 |
| ATP - Miami | 2015/03/26 22:45 | Harrison, Ryan v Melzer, Jurgen | 6-7,3-6 |
| ATP Memphis | 2015/02/11 22:30 | Kei Nishikori v Harrison, Ryan | 3-6,6-3,6-4 |
| ATP Memphis | 2015/02/10 18:50 | Harrison, Ryan v Jaziri, Malek | 7-6,7-6 |
| Challenger Dallas | 2015/02/04 21:40 | Smyczek, Tim v Harrison, Ryan | 6-2,3-6,6-1 |