Stadium: Estadio Central Round: 25 Ground: Clay
| Challenger Banja Luka | 2019/09/12 12:30 | Guilherme Clezar v Tallon Griekspoor | 4-6,3-6 |
| Challenger Banja Luka | 2019/09/11 12:15 | Rogerio Dutra Silva v Guilherme Clezar | 3-6,1-6 |
| Challenger Banja Luka | 2019/09/10 08:00 | Jelle Sels v Guilherme Clezar | 2-6,3-6 |
| ITF M25 La Marsa | 2019/09/07 09:30 | Guilherme Clezar v Louis Wessels | 6-1,3-6,3-6 |
| ITF M25 La Marsa | 2019/09/06 13:00 | Manuel Guinard v Guilherme Clezar | 3-6,2-6 |
| ITF M25 La Marsa | 2019/09/05 12:00 | Michael Geerts v Guilherme Clezar | 5-7,1-6 |
| ITF M25 La Marsa | 2019/09/03 13:30 | Pietro Marino v Guilherme Clezar | 1-6,3-6 |
| ITF M25 Irpin | 2019/08/31 08:00 | Denis Yevseyev v Guilherme Clezar | 2-6,6-3,6-4 |
| US Open | 2019/08/27 22:00 | Antoine Hoang v Leonardo Mayer | 3-6,6-2,6-7,6-1,6-3 |
| ATP Kitzbuhel | 2019/07/30 09:00 | Pablo Andujar v Leonardo Mayer | 3-6,6-3,6-2 |
| ATP Hamburg | 2019/07/22 16:30 | Leonardo Mayer v Rudolf Molleker | 6-7,4-6 |
| ATP Umag | 2019/07/19 15:30 | Laslo Djere v Leonardo Mayer | 6-4,6-7,6-3 |
| ATP Umag | 2019/07/17 15:15 | Jiri Vesely v Leonardo Mayer | 6-3,4-6,4-6 |
| ATP Umag | 2019/07/16 17:30 | Pablo Andujar v Leonardo Mayer | 1-6,5-7 |
| Wimbledon | 2019/07/03 11:25 | Leonardo Mayer v Hubert Hurkacz | 7-6,1-6,6-7,3-6 |
| Wimbledon | 2019/07/01 11:25 | Ernests Gulbis v Leonardo Mayer | 1-6,6-7,2-6 |