Stadium: Court 12 Round: 44 Ground: Clay
| ITF M15 Maldonado | 2019/11/26 12:00 | Gaston Erhardt v Francisco Aranguren | 6-7,4-6 |
| ITF M15 Junin | 2019/10/23 17:20 | Gabriel Alejandro Hidalgo v Gaston Erhardt | 6-0,6-1 |
| ITF M15 Junin | 2019/10/22 12:00 | Gaston Erhardt v Federico Juan Aguilar | 6-4,6-4 |
| ITF M15 Sao Paulo | 2019/10/15 16:45 | Christian Oliveira v Gaston Erhardt | 7-6,6-3 |
| ITF M15 Sao Paulo | 2019/10/14 14:00 | Paulo A S Dos Santos v Gaston Erhardt | 5-7,6-2,6-10 |
| ITF M25 Rio de Janeiro | 2019/10/07 14:00 | Andre Miele v Gaston Erhardt | 6-2,6-2 |
| ITF M15 Santiago | 2019/10/02 11:00 | Felipe Derdoy v Gaston Erhardt | 6-3,6-2 |
| ITF M15 Santiago | 2019/09/30 14:00 | Hugo Moura v Gaston Erhardt | 2-6,0-6 |
| ITF M25 Weston | 2020/01/27 15:30 | Michael Zhu v Karol Drzewiecki | 6-2,1-6,5-10 |
| ITF M15 Monastir | 2019/12/11 12:10 | Michael Zhu v Luca Giacomini | 2-6,4-6 |
| ITF M15 Monastir Qual | 2019/12/09 09:00 | Michael Zhu v Skander Ben Abdallah | 6-2,6-1 |
| ITF M15 Monastir Qual | 2019/12/09 09:00 | Michael Zhu v Caspar Schuetze | 6-4,6-1 |
| ITF M15 Monastir Qual | 2019/12/08 10:30 | Michael Zhu v Alexander M Alexander | 6-0,6-0 |
| ITF M15 Monastir | 2019/12/05 16:00 | Ergi Kirkin v Michael Zhu | 6-2,6-0 |
| ITF M15 Monastir | 2019/12/05 12:30 | Jake Hersey v Michael Zhu | 3-6,4-6 |
| ITF M15 Monastir | 2019/12/02 12:30 | Michael Zhu v Jake Hersey | 6-3,6-3 |