Round: 44 Ground: Grass
| 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 |
| Challenger Vicenza | 2015/05/27 11:35 | Facundo Bagnis v Clezar, Guilherme | 6-3,6-4 |
| ITF Netherlands F1 | 2015/06/18 17:50 | Westerhof, Boy v Alexey Vatutin | 4-6,2-6 |
| ITF Netherlands F1 | 2015/06/18 12:25 | Westerhof, Boy v Neis, Fabricio | 6-4,6-1 |
| ITF China F2 Qual | 2015/04/14 02:00 | Westerhof, Boy v Kim, Young Seok | 6-2,6-4 |
| ITF China F2 | 2015/04/10 03:20 | Kim, Young Seok v Westerhof, Boy | 6-4,2-6,6-4 |
| ITF China F2 | 2015/04/08 02:00 | Ning, Yuqing v Westerhof, Boy | 1-6,2-6 |
| ITF China F2 | 2015/04/07 02:00 | He, Yecong v Westerhof, Boy | 3-6,1-6 |
| ITF China F2 Qual | 2015/04/05 02:00 | Yang, Tsung-Hua v Westerhof, Boy | 7-6,6-4 |
| ITF China F2 Qual | 2015/04/04 02:00 | Huang, Liang-Chi v Westerhof, Boy | 4-6,3-6 |