Stadium: Court 15 Round: 19 Ground: Hardcourt outdoor
| Challenger Cary | 2022/09/12 17:45 | Nathan Ponwith v Garrett Johns | 3-6,6-7 |
| ITF M15 Lubbock | 2021/09/28 15:00 | Garrett Johns v Nathan Ponwith | 6-3,6-2 |
| ITF M25 Memphis | 2019/08/13 15:00 | Nathan Ponwith v Garrett Johns | 1-6,3-6 |
| Challenger Cary | 2023/09/10 18:30 | Nathan Ponwith v Ozan Baris | 6-1,6-4 |
| Challenger Stanford | 2023/08/12 18:20 | Gage Brymer v Nathan Ponwith | 1-6,6-1,6-1 |
| Challenger Cary | 2023/08/07 16:00 | Quinn Vandecasteele v Nathan Ponwith | 6-4,6-2 |
| Challenger Cary | 2023/08/06 16:40 | Joseph Wayand v Nathan Ponwith | 4-6,2-6 |
| Challenger Lexington | 2023/08/01 18:40 | Nathan Ponwith v Aidan Mayo | 4-6,1-6 |
| Challenger Salinas | 2023/07/24 16:40 | Nathan Ponwith v Alexander Bernard | 2-6,5-7 |
| Challenger Granby | 2023/07/18 18:05 | James Trotter v Nathan Ponwith | 6-3,7-6 |
| Challenger Granby | 2023/07/17 14:00 | Patrick Kypson v Nathan Ponwith | 6-3,7-5 |
| Challenger Cary | 2023/09/10 19:50 | Garrett Johns v Justin Boulais | 7-5,7-6 |
| ITF M15 Monastir | 2023/08/31 08:30 | Alexandros Skorilas v Garrett Johns | 6-3,6-7,6-1 |
| ITF M15 Monastir | 2023/08/29 10:00 | Samir Banerjee v Garrett Johns | 3-6,6-1,4-6 |
| ITF M15 Monastir | 2023/08/24 10:00 | Garrett Johns v Mohammad Alkotop | 6-1,6-0 |
| ITF M15 Monastir | 2023/08/22 10:50 | Garrett Johns v Thomas Braithwaite | 6-2,6-3 |
| ITF M15 Monastir | 2023/08/20 08:30 | Garrett Johns v Lukas Pokorny | 6-7,6-2,6-3 |
| ITF M15 Monastir | 2023/08/19 08:30 | Kris Van Wyk v Garrett Johns | 5-7,2-6 |
| ITF M15 Monastir | 2023/08/18 08:30 | Garrett Johns v Younes Lalami Laaroussi | 6-2,6-2 |