Round: 26 Ground: Clay
| Challenger Meerbusch | 2015/08/18 14:00 | Facundo Arguello v Marvin Greven | 6-2,7-5 |
| Challenger Prag 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 |
| Wimbledon Qual | 2015/06/22 14:30 | Gianni Mina v Facundo Arguello | 3-6,7-5,6-8 |
| Challenger Bordeaux | 2015/05/12 16:15 | Facundo Arguello v Lucas Pouille | 6-4,2-6,2-6 |
| Challenger Tallahassee | 2015/05/02 17:20 | Frances Tiafoe v Facundo Arguello | 6-2,6-7,4-6 |
| Challenger Tallahassee | 2015/05/01 21:40 | Jared Donaldson v Facundo Arguello | 3-6,2-6 |
| Challenger Meerbusch | 2015/08/18 11:25 | Juan Carlos Saez v Dennis Novak | 6-1,6-2 |
| Davis Cup | 2015/07/19 14:00 | Juan Carlos Saez v Tigre Hank | 6-4,6-2 |
| Davis Cup | 2015/07/17 14:00 | Juan Carlos Saez v Lucas Gomez | 4-6,6-0,5-7,7-6,6-1 |
| Challenger Milan | 2015/06/24 11:20 | Marco Cecchinato v Juan Carlos Saez | 7-5,6-3 |
| Challenger Milan | 2015/06/22 11:00 | Juan Carlos Saez v Filippo Baldi | 6-3,6-0 |
| ITF Romania F4 | 2015/05/28 07:00 | Juan Carlos Saez v Yannik Reuter | 6-7,3-6 |
| ITF Romania F3 | 2015/05/21 08:30 | Juan Carlos Saez v Dmitry Popko | 6-3,2-6,2-6 |
| ITF Romania F3 | 2015/05/20 07:00 | Juan Carlos Saez v Vasile Antonescu | 6-0,6-4 |