Stadium: Central Round: 25 Ground: Clay
| 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 |
| Challenger Buenos Aires | 2019/09/24 14:00 | Federico Zeballos v Gonzalo Villanueva | 6-4,6-1 |
| Challenger Buenos Aires | 2019/09/23 13:30 | Federico Zeballos v Santiago Rodriguez Taverna | 4-6,6-2,7-5 |
| Davis Cup | 2019/09/14 19:35 | Franz Luna Lavidalie v Federico Zeballos | 4-6,4-6 |
| Davis Cup | 2019/09/13 17:25 | Wilfredo Gonzalez v Federico Zeballos | 6-3,3-6,6-3 |
| ITF M15 Cancun | 2019/08/31 14:00 | Matija Pecotic v Federico Zeballos | 6-1,6-3 |
| ITF M15 Cancun | 2019/08/30 16:30 | Federico Zeballos v Jose Olivares | 6-2,6-4 |
| ITF M15 Cancun | 2019/08/29 17:05 | Federico Zeballos v George Goldhoff | 6-7,6-1,6-2 |
| ITF M15 Cancun | 2019/08/28 15:45 | Federico Zeballos v Nicholas Shamma | 6-3,6-3 |