Round: 25 Ground: Clay
| ATP - Washington - Qualifikation | 2015/08/01 16:40 | Guilherme Clezar v Ryan Harrison | 3-6,7-6,2-6 |
| ATP - Houston - Qualifikation | 2016/04/02 16:30 | Brian Baker v Guilherme Clezar | 6-2,7-6 |
| Challenger - Santiago 2 - Qualifikation | 2016/03/11 16:00 | Guilherme Clezar v Rogerio Dutra Silva | 3-6,5-7 |
| Challenger - Santiago 2 - Qualifikation | 2016/03/09 18:15 | Guilherme Clezar v Mathias Bourgue | 6-4,7-6 |
| Challenger - Guayaquil | 2015/11/03 17:35 | Guilherme Clezar v Guido Pella | 1-6,6-3,3-6 |
| Challenger - Medellin | 2015/10/08 15:30 | Paolo Lorenzi v Guilherme Clezar | 7-6,6-4 |
| Challenger - Medellin | 2015/10/05 16:00 | Yannik Reuter v Guilherme Clezar | 2-6,7-5,1-6 |
| Challenger - Campinas | 2015/09/23 22:25 | Facundo Arguello v Guilherme Clezar | 6-3,6-7,6-4 |
| Challenger - Campinas | 2015/09/21 21:35 | Christian Lindell v Guilherme Clezar | 7-5,3-6,4-6 |
| ATP - Miami - Qualifikation | 2016/03/21 18:50 | Horacio Zeballos v Ryan Harrison | 6-7,6-3,6-4 |
| ATP - Memphis | 2016/02/11 01:30 | Kei Nishikori v Ryan Harrison | 6-2,7-5 |
| ATP - Memphis | 2016/02/09 01:30 | Ryan Harrison v Frances Tiafoe | 6-7,7-6,6-4 |
| Challenger - Dallas | 2016/02/03 18:30 | Ryan Harrison v Tim Smyczek | 0-6,7-5,4-6 |
| Challenger - Knoxville | 2015/11/10 19:10 | Ryan Harrison v Blaz Kavcic | 2-6,4-6 |
| Challenger - Charlottesville | 2015/11/05 00:05 | Henri Laaksonen v Ryan Harrison | 7-5,7-5 |
| Challenger - Charlottesville | 2015/11/02 23:30 | Tennys Sandgren v Ryan Harrison | 5-7,3-6 |
| Challenger - Las Vegas | 2015/10/20 21:00 | Michael Mmoh v Ryan Harrison | 6-2,6-3 |