Stadium: Court 12 Round: 44 Ground: Clay
| Maldonado, Singles Qualifying M-ITF-URU-01A | 2019/11/26 12:00 | Erhardt, Gaston v Aranguren, Francisco | 6-7,4-6 |
| Junin, Singles M-ITF-ARG-23A | 2019/10/23 17:20 | Hidalgo, Gabriel Alejandro v Erhardt, Gaston | 6-0,6-1 |
| Junin, Singles M-ITF-ARG-23A | 2019/10/22 12:00 | Erhardt, Gaston v Aguilar, Federico Juan | 6-4,6-4 |
| Sao Paulo, Singles M-ITF-BRA-06A | 2019/10/15 16:45 | Oliveira, Cristian v Erhardt, Gaston | 7-6,6-3 |
| Sao Paulo, Singles M-ITF-BRA-06A | 2019/10/14 14:00 | Paulo A S Dos Santos v Erhardt, Gaston | 5-7,6-2,6-10 |
| ITF M25 Rio de Janeiro | 2019/10/07 14:00 | Miele, Andre v Erhardt, Gaston | 6-2,6-2 |
| ITF - M15 Santiago | 2019/10/02 11:00 | Derdoy, Felipe v Erhardt, Gaston | 6-3,6-2 |
| ITF - M15 Santiago | 2019/09/30 14:00 | Moura, Hugo v Erhardt, Gaston | 2-6,0-6 |
| ITF M25 Weston | 2020/01/27 15:30 | Michael Zhu v Drzewiecki, Karol | 6-2,1-6,5-10 |
| ITF - M15 Monastir | 2019/12/11 12:10 | Michael Zhu v Luca Giacomini | 2-6,4-6 |
| Monastir, Singles Qualifying M-ITF-TUN-52A | 2019/12/09 09:00 | Michael Zhu v Ben Abdallah, Skander | 6-2,6-1 |
| Monastir, Singles Qualifying M-ITF-TUN-52A | 2019/12/09 09:00 | Michael Zhu v Caspar Schuetze | 6-4,6-1 |
| Monastir, Singles Qualifying M-ITF-TUN-52A | 2019/12/08 10:30 | Michael Zhu v Maltsev Alexander, 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 | Hersey, Jake v Michael Zhu | 3-6,4-6 |
| ITF - M15 Monastir | 2019/12/02 12:30 | Michael Zhu v Hersey, Jake | 6-3,6-3 |