| UTR Pro Tennis Series Florida | 2021/03/11 17:50 | Harris Walker v Michael Zheng | 4-6,6-7 |
| UTR Pro Tennis Series New York | 2021/12/27 17:30 | Harris Walker v Sachin Palta | 7-6,6-1 |
| UTR Pro Tennis Series Atlanta | 2021/04/18 12:30 | Harris Walker v Matthew Segura | 6-7,6-1,4-1 |
| UTR Pro Tennis Series Atlanta | 2021/04/17 14:00 | Harris Walker v Peter Bertran | 6-1,0-0 |
| UTR Pro Tennis Series Atlanta | 2021/04/16 15:00 | Daniel Milavsky v Harris Walker | 2-6,4-6 |
| UTR Pro Tennis Series Atlanta | 2021/04/15 17:00 | Nicolas Meister v Harris Walker | 1-6,2-6 |
| UTR Pro Tennis Series Atlanta | 2021/04/14 14:30 | Jacob Brumm v Harris Walker | 2-6,2-6 |
| UTR Pro Tennis Series Atlanta | 2021/04/12 14:00 | Murphy Cassone v Harris Walker | 1-6,3-6 |
| UTR Pro Tennis Series Florida | 2021/03/14 14:30 | Harris Walker v Joshua Sheehy | 7-6,5-4 |
| UTR Pro Tennis Series New York | 2021/12/27 18:50 | Michael Zheng v Alex Finkelstein | 6-4,6-3 |
| ITF M15 Ithaca | 2021/11/03 17:55 | Michael Zheng v Colin Sinclair | 0-6,2-6 |
| ITF M15 Ithaca | 2021/11/02 14:30 | Jonathan Sorbo v Michael Zheng | 2-6,6-3,6-10 |
| ITF M15 Tallahassee | 2021/10/26 13:00 | Michael Zheng v Matt Kuhar | 2-6,7-6,3-10 |
| ITF M15 Tallahassee | 2021/10/25 13:00 | Yasha Zemel v Michael Zheng | 3-6,4-6 |
| ITF M15 Vero Beach | 2021/10/21 17:00 | Michael Zheng v Ezekiel Clark | 2-6,4-6 |
| ITF M15 Vero Beach | 2021/10/20 16:00 | Michael Zheng v Reece Falck | 7-5,6-1 |
| ITF M15 Weston | 2021/07/02 14:45 | Federico Agustin Gomez v Michael Zheng | 6-4,6-4 |