Estadio: Court 3 Round: 54 Ground: Clay
| ITF 15 Naples | 2022/02/16 18:30 | Nathan Ponwith v Ezekiel Clark | 6-0,3-6,1-6 |
| ITF 15 Naples | 2022/02/09 15:00 | Antoine Cornut-Chauvinc v Nathan Ponwith | 6-1,6-3 |
| UTR Pro Tennis Series - Miami | 2022/02/05 17:00 | Nathan Ponwith v Pol Toledo Bague | 2-6,2-5 |
| UTR Pro Tennis Series - Miami | 2022/02/03 14:00 | Nathan Ponwith v Oscar Mesquida Berg | 7-5,5-4 |
| UTR Pro Tennis Series - Miami | 2022/01/31 16:00 | Nathan Ponwith v Luca Hotze | 6-0,5-0 |
| UTR Pro Tennis Series - Miami | 2022/01/30 15:30 | Nathan Ponwith v Azuma Visaya | 6-2,6-1 |
| ITF M25 Weston | 2022/01/27 14:30 | Eduard Esteve Lobato v Nathan Ponwith | 6-3,6-1 |
| ITF M15 Santo Domingo | 2021/12/10 13:30 | Alfredo Perez v Nathan Ponwith | 6-1,6-2 |
| ITF 15 Naples | 2022/02/08 17:25 | Preston Stearns v Vasil Kirkov | 5-7,1-6 |
| Challenger de Columbus | 2022/01/23 17:50 | Yosuke Watanuki v Preston Stearns | 6-3,6-3 |
| UTR Pro Tennis Series Florida | 2021/09/12 15:00 | Preston Stearns v Patrick Daciek | 1-6,4-5 |
| UTR Pro Tennis Series Florida | 2021/09/11 16:30 | Preston Stearns v Jacob Perkins | 3-6,6-4,5-3 |
| UTR Pro Tennis Series Florida | 2021/09/09 13:30 | Preston Stearns v Jonah Braswell | 4-6,0-1 |
| UTR Pro Tennis Series Florida | 2021/09/08 13:30 | Preston Stearns v Matthew Segura | 6-4,7-6 |
| UTR Pro Tennis Series Florida | 2021/09/07 16:30 | Preston Stearns v Victor Sklenka | 4-6,7-5,4-6 |
| UTR Pro Tennis Series Florida | 2021/09/06 21:00 | Preston Stearns v Noureldin Adam | 2-6,6-4,2-6 |