Stadium: FCC Court Round: 25 Ground: Clay
| Challenger - Santiago | 2017/03/06 14:30 | Guilherme Clezar v Tristan Lamasine | 3-6,6-4,6-4 |
| Challenger - Tampere | 2017/07/25 13:50 | Tristan Lamasine v Alexey Vatutin | 6-7,7-5,4-6 |
| ATP Bastad Qual | 2017/07/17 09:00 | Tristan Lamasine v Leonardo Mayer | 6-7,7-6,2-6 |
| Challenger Bastad | 2017/07/11 12:20 | Tristan Lamasine v Henri Laaksonen | 1-6,4-6 |
| Wimbledon Qual | 2017/06/26 11:30 | Ruben Bemelmans v Tristan Lamasine | 3-6,6-1,6-3 |
| Challenger - Blois | 2017/06/20 08:00 | Tristan Lamasine v Jonathan Eysseric | 6-3,4-6,4-6 |
| Challenger - Lyon | 2017/06/17 12:10 | Tristan Lamasine v Mathias Bourgue | 2-6,1-6 |
| Challenger - Lyon | 2017/06/16 13:00 | Horacio Zeballos v Tristan Lamasine | 7-5,5-7,4-6 |
| Challenger - Lyon | 2017/06/15 09:00 | Tristan Lamasine v Cristian Garin | 6-1,6-4 |
| Challenger Cortina | 2017/07/26 09:25 | Gerald Melzer v Guilherme Clezar | 7-6,6-3 |
| Challenger Cortina | 2017/07/24 10:00 | Matteo Donati v Guilherme Clezar | 6-7,6-2,5-7 |
| Challenger - Poznan | 2017/07/18 09:00 | Jan Satral v Guilherme Clezar | 7-6,6-0 |
| Challenger - Milan | 2017/06/29 16:35 | Tommy Robredo v Guilherme Clezar | 6-7,7-6,6-3 |
| Challenger - Milan | 2017/06/26 13:20 | Guilherme Clezar v Thiago Monteiro | 6-3,6-3 |
| Challenger - Todi | 2017/06/20 09:30 | Guilherme Clezar v Gastao Elias | 6-3,3-6,4-6 |
| Challenger - Lissabon | 2017/06/13 16:30 | Frederico Ferreira Silva v Guilherme Clezar | 6-2,6-4 |
| ITF Spain F16 | 2017/06/07 10:15 | David Vega Hernandez v Guilherme Clezar | 6-4,6-4 |