Stadium: Central Round: 26 Ground: Clay
| Challenger Buenos Aires | 2019/09/25 20:30 | Leonardo Mayer v Federico Zeballos | 7-5,6-1 |
| 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 |
| Challenger Buenos Aires | 2019/09/25 16:05 | Facundo Diaz Acosta v Renzo Olivo | 7-5,4-6,6-2 |
| Challenger Buenos Aires | 2019/09/24 14:00 | Mariano Kestelboim v Facundo Diaz Acosta | 3-6,7-5,5-7 |
| ITF M15 Buenos Aires | 2019/09/20 15:00 | Facundo Diaz Acosta v Gonzalo Villanueva | 5-7,1-6 |
| ITF M15 Buenos Aires | 2019/09/19 17:50 | Facundo Diaz Acosta v Valerio Aboian | 6-0,6-2 |
| ITF M15 Buenos Aires | 2019/09/17 16:30 | Facundo Diaz Acosta v Felipe M Sarrasague | 4-6,6-1,6-3 |
| ITF M15 Santa Cristina | 2019/08/18 08:30 | Facundo Diaz Acosta v Wilson Leite | 6-7,6-1,6-2 |
| ITF M15 Santa Cristina | 2019/08/17 11:55 | Facundo Diaz Acosta v Mick Veldheer | 6-1,6-3 |
| ITF M15 Santa Cristina | 2019/08/16 10:10 | Pietro Rondoni v Facundo Diaz Acosta | 6-7,2-6 |