Stadium: Court 3 Round: 54 Ground: Hardcourt indoor
| ITF M15 Champaign | 2021/09/16 15:00 | John McNally v Yasha Zemel | 6-3,7-6 |
| ITF M15 Champaign | 2021/09/15 17:45 | Yasha Zemel v Victor Lilov | 1-6,7-6,6-4 |
| ITF M25 Idanha-A-Nova | 2021/07/20 08:00 | Yasha Zemel v Alejandro Moro Canas | 0-6,5-7 |
| ITF M25 Idanha-A-Nova | 2021/07/19 08:00 | Yasha Zemel v Manuel Almeida | 6-2,7-6 |
| ITF M25 Idanha-A-Nova | 2021/07/18 08:00 | Yasha Zemel v Digvijay Pratap Singh | 6-3,3-6,14-12 |
| ITF M25 Idanha-A-Nova | 2021/07/14 13:55 | Luis Faria v Yasha Zemel | 6-1,6-2 |
| ITF M25 Idanha-A-Nova | 2021/07/13 08:00 | Yasha Zemel v Osgar O'Hoisin | 6-4,4-6,12-10 |
| ITF M25 Idanha-A-Nova | 2021/07/12 10:30 | Yasha Zemel v Ivan Zaytsev | 6-3,6-3 |
| 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 |
| ITF M25 Weston | 2021/06/29 22:45 | Michael Zheng v Cleeve Harper | 6-3,6-3 |
| ITF M25 Weston | 2021/06/29 20:45 | Garrett Johns v Michael Zheng | 4-6,6-3,8-10 |
| ITF M15 Champaign | 2021/06/22 15:00 | Nathan Ponwith v Michael Zheng | 6-3,6-1 |
| ITF M15 Champaign | 2021/06/21 15:00 | Michael Zheng v Joshua Peck | 6-3,6-4 |
| UTR Pro Tennis Series Florida | 2021/03/13 15:30 | Michael Zheng v Cristian C. Rodriguez Sanchez | 1-6,2-5 |