Stadium: Court 7 Round: 25 Ground: Hardcourt outdoor
| 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 M25 Fort Worth | 2019/10/24 18:05 | Nathan Ponwith v Jack Draper | 6-3,6-4 |
| ITF M25 Fort Worth | 2019/10/23 15:00 | Nathan Ponwith v Aidan Mchugh | 6-2,6-3 |
| Challenger Orlando | 2021/06/12 17:45 | Sam Riffice v Christopher Eubanks | 3-6,6-7 |
| Challenger Orlando | 2021/06/11 17:20 | Ulises Blanch v Sam Riffice | 1-6,5-7 |
| Challenger Orlando | 2021/06/09 14:00 | Roberto Cid Subervi v Sam Riffice | 2-6,2-6 |
| Challenger Orlando | 2021/06/07 15:55 | Sam Riffice v Paolo Lorenzi | 6-2,6-4 |
| ITF M15 Fayetteville | 2020/11/03 20:50 | Sam Riffice v Roberto Quiroz | 2-6,6-7 |
| UTR Pro Tennis Series Florida | 2020/07/30 12:00 | Cleeve Harper v Sam Riffice | 2-6,4-6 |
| UTR Pro Tennis Series Florida | 2020/07/29 12:00 | Sam Riffice v Egor Gerasimov | 3-6,4-6 |
| UTR Pro Tennis Series Florida | 2020/07/28 12:00 | Jordi Arconada v Sam Riffice | 3-6,3-6 |