Round: 46 Ground: Hardcourt outdoor
| US Open Qual | 2015/08/27 21:20 | Nicolas Almagro v Guilherme Clezar | 6-7,6-4,4-6 |
| US Open Qual | 2015/08/26 16:40 | Amir Weintraub v Guilherme Clezar | 6-3,4-6,3-6 |
| Challenger Aptos | 2015/08/13 20:50 | Guilherme Clezar v Malek Jaziri | 3-6,6-3,3-6 |
| ATP Washington Qual | 2015/08/01 16:40 | Guilherme Clezar v Ryan Harrison | 3-6,7-6,2-6 |
| Wimbledon Qual | 2015/06/22 16:35 | Guilherme Clezar v Boy Westerhof | 5-7,4-6 |
| Challenger Blois | 2015/06/18 12:20 | Calvin Hemery v Guilherme Clezar | 6-4,4-6,6-2 |
| Challenger Blois | 2015/06/16 17:55 | Gonzalo Escobar v Guilherme Clezar | 6-3,4-6,6-7 |
| Challenger Caltanissetta | 2015/06/12 12:00 | Marco Cecchinato v Guilherme Clezar | 6-0,6-0 |
| US Open Qual | 2015/08/27 19:45 | Vincent Millot v John-Patrick Smith | 5-7,2-6 |
| US Open Qual | 2015/08/26 17:20 | Jesse Witten v John-Patrick Smith | 6-7,1-6 |
| ATP Montreal Qual | 2015/08/08 14:00 | John-Patrick Smith v Mikhail Youzhny | 1-6,6-7 |
| ATP Washington Qual | 2015/08/01 14:00 | Matija Pecotic v John-Patrick Smith | 2-6,4-6 |
| ATP Newport | 2015/07/18 18:00 | Rajeev Ram v John-Patrick Smith | 6-4,7-6 |
| ATP Newport | 2015/07/16 19:45 | John-Patrick Smith v Tatsuma Ito | 6-3,6-7,6-3 |
| ATP Newport | 2015/07/15 15:00 | John-Patrick Smith v Jared Donaldson | 6-3,6-1 |
| ATP Newport | 2015/07/13 17:10 | Bernard Tomic v John-Patrick Smith | 3-6,5-7 |