Stadium: Court 7 Round: 25 Ground: Hardcourt outdoor
| 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 |
| ITF M25 Norman | 2019/10/03 15:00 | Spencer Papa v Nathan Ponwith | 6-2,7-6 |
| ITF M25 Norman | 2019/10/02 15:00 | Nathan Ponwith v Govind Nanda | 6-4,4-6,6-2 |
| 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 |
| UTR Pro Tennis Series Florida | 2020/07/24 13:30 | Sam Riffice v Liam Draxl | 3-6,6-7 |
| UTR Pro Tennis Series Florida | 2020/07/23 12:00 | Sam Riffice v Ronald Hohmann | 6-3,6-3 |
| UTR Pro Tennis Series Florida | 2020/07/22 13:30 | Dmitry Popko v Sam Riffice | 6-4,1-6,10-8 |
| Matchplay 120 | 2020/07/21 20:00 | Shintaro Mochizuki v Sam Riffice | 3-6,6-3,0-0 |