Stadium: Court 2 N Round: 54 Ground: Hardcourt outdoor
| ITF M15 Champaign | 2021/06/21 15:00 | Nathan Ponwith v Hunter Heck | 6-1,6-3 |
| ITF M25 Tulsa | 2021/06/16 14:00 | Nathan Ponwith v Sam Riffice | 5-7,4-6 |
| ITF M25 Tulsa | 2021/06/15 16:30 | Nathan Ponwith v Axel Nefve | 6-4,6-4 |
| ITF M25 Tulsa | 2021/06/14 18:00 | Nathan Ponwith v Joshua Sheehy | 6-3,6-4 |
| ITF M15 Fayetteville | 2020/11/03 19:00 | Nathan Ponwith v Brandon Holt | 2-6,4-6 |
| ITF M25 Orlando | 2019/11/12 19:00 | Adam Moundir v Nathan Ponwith | 4-6,7-6,6-4 |
| Challenger Knoxville | 2019/11/05 17:20 | Evan King v Nathan Ponwith | 5-7,6-4,6-2 |
| ITF M25 Fort Worth | 2019/10/25 19:30 | Alfredo Perez v Nathan Ponwith | 7-6,7-5 |
| 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 |
| UTR Pro Tennis Series Florida | 2021/03/12 18:30 | Sekou Bangoura v Michael Zheng | 6-1,4-6,4-5 |
| UTR Pro Tennis Series Florida | 2021/03/11 17:50 | Harris Walker v Michael Zheng | 4-6,6-7 |
| UTR Pro Tennis Series Florida | 2021/03/09 15:30 | Connor Krug v Michael Zheng | 6-4,3-6,5-2 |
| UTR Pro Tennis Series Florida | 2021/03/08 14:00 | Michael Zheng v Raphael Termat | 6-2,5-2 |