Round: 26 Ground: Clay
| Challenger Campinas | 2015/09/22 13:00 | Facundo Arguello v Giovanni Lapentti | 6-3,6-4 |
| US Open Qual | 2015/08/26 18:15 | Thomas Fabbiano v Facundo Arguello | 6-2,7-5 |
| Challenger Meerbusch | 2015/08/22 11:00 | Andreas Haider-Maurer v Facundo Arguello | 6-4,6-4 |
| Challenger Meerbusch | 2015/08/19 12:00 | Facundo Arguello v Juan Carlos Saez | 6-3,6-2 |
| Challenger Meerbusch | 2015/08/18 14:00 | Facundo Arguello v Marvin Greven | 6-2,7-5 |
| Challenger Prague 2 | 2015/08/11 12:25 | Nikola Mektic v Facundo Arguello | 3-6,6-0,6-1 |
| Challenger Padova | 2015/06/30 16:35 | Facundo Arguello v Filippo Volandri | 0-6,3-6 |
| Wimbledon Qual | 2015/06/24 11:40 | Pierre-Hugues Herbert v Facundo Arguello | 6-3,6-4 |
| Challenger Campinas | 2015/09/21 21:35 | Christian Lindell v Guilherme Clezar | 7-5,3-6,4-6 |
| US Open Qual | 2015/08/28 18:15 | Guilherme Clezar v John-Patrick Smith | 3-6,2-6 |
| 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 |