Stadium: Court Guillermo Vilas Round: 26 Ground: Clay
| ATP - Buenos Aires | 2019/02/12 17:30 | Dusan Lajovic v Mayer, Leonardo | 3-6,6-7 |
| ATP - Cordoba | 2019/02/06 00:15 | Mayer, Leonardo v Delbonis, Federico | 4-6,7-6,3-6 |
| Open d'Australie | 2019/01/17 03:00 | Fabio Fognini v Mayer, Leonardo | 7-6,6-3,7-6 |
| Open d'Australie | 2019/01/15 00:00 | Nicolas Jarry v Mayer, Leonardo | 6-7,6-7,6-4,3-6 |
| ATP - Auckland | 2019/01/09 23:00 | Mayer, Leonardo v Tennys Sandgren | 3-6,6-7 |
| ATP - Auckland | 2019/01/09 00:15 | Mayer, Leonardo v Matteo Berrettini | 5-7,7-6,6-3 |
| ATP - Auckland | 2019/01/07 23:00 | Steve Johnson v Mayer, Leonardo | 5-7,3-6 |
| ATP Brisbane | 2018/12/31 07:20 | Mayer, Leonardo v Miomir Kecmanovic | 3-6,1-6 |
| ATP - Buenos Aires | 2019/02/12 19:00 | Francisco Cerundolo v Pella, Guido | 6-3,4-6,1-6 |
| ATP - Cordoba | 2019/02/10 22:05 | Pella, Guido v Londero, Juan Ignacio | 6-3,5-7,1-6 |
| ATP - Cordoba | 2019/02/10 00:00 | Cuevas, Pablo v Pella, Guido | 1-6,6-3,3-6 |
| ATP - Cordoba | 2019/02/08 23:05 | Diego Schwartzman v Pella, Guido | 5-7,2-6 |
| ATP - Cordoba | 2019/02/08 02:00 | Albert Ramos-Vinolas v Pella, Guido | 4-6,6-7 |
| ATP - Cordoba | 2019/02/04 22:10 | Lorenzi, Paolo v Pella, Guido | 1-6,3-6 |
| Open d'Australie | 2019/01/15 02:00 | Pella, Guido v Joao Sousa | 6-7,6-4,6-7,6-4,2-6 |
| ATP - Auckland | 2019/01/08 01:05 | Pella, Guido v Gojowczyk, Peter | 1-6,6-3,2-6 |