Stadium: Court 2 Round: 14 Ground: Hardcourt outdoor
| Challenger Little Rock | 2023/05/30 17:15 | Nathan Ponwith v Christian Langmo | 2-6,7-5,7-5 |
| Challenger Leon | 2023/04/10 18:00 | Christian Langmo v Nathan Ponwith | 7-6,6-3 |
| ITF M25 Wesley Chapel | 2023/01/29 15:00 | Christian Langmo v Nathan Ponwith | 3-6,2-6 |
| ITF M25 Edwardsville | 2019/08/08 16:20 | Nathan Ponwith v Christian Langmo | 7-5,5-7,6-4 |
| Challenger Bloomfield Hills | 2023/07/03 16:45 | Andres Martin v Nathan Ponwith | 6-3,6-4 |
| ITF M15 Los Angeles | 2023/06/22 18:00 | Nathan Ponwith v Quinn Vandecasteele | 3-6,3-6 |
| ITF M15 Los Angeles | 2023/06/21 19:50 | Nathan Ponwith v Maxwell McKennon | 6-4,6-4 |
| Challenger Palmas del Mar | 2023/06/11 19:30 | Nathan Ponwith v Michael Zheng | 4-6,6-7 |
| Challenger Tyler | 2023/06/04 20:20 | Dane Sweeny v Nathan Ponwith | 4-6,7-5,6-2 |
| Challenger Little Rock | 2023/05/31 16:00 | Antoine Escoffier v Nathan Ponwith | 6-1,6-2 |
| Challenger Little Rock | 2023/05/30 17:15 | Nathan Ponwith v Christian Langmo | 2-6,7-5,7-5 |
| ITF M25 Pensacola | 2023/05/19 15:00 | Sekou Bangoura v Nathan Ponwith | 6-4,6-1 |
| Challenger Bloomfield Hills | 2023/07/03 18:25 | Christian Langmo v Ozan Baris | 4-6,3-6 |
| Challenger Cali | 2023/06/20 23:30 | Alejandro Tabilo v Christian Langmo | 7-6,6-4 |
| Challenger Palmas del Mar | 2023/06/13 23:30 | Christian Langmo v Kei Nishikori | 2-6,4-6 |
| Challenger Tyler | 2023/06/08 16:00 | Christian Langmo v Adam Neff | 6-7,6-7 |
| Challenger Tyler | 2023/06/06 18:00 | Michael Mmoh v Christian Langmo | 3-6,6-7 |
| Challenger Tyler | 2023/06/05 18:45 | Dane Sweeny v Christian Langmo | 6-4,7-5 |
| Challenger Tyler | 2023/06/04 18:45 | Alafia Ayeni v Christian Langmo | 4-6,6-7 |
| Challenger Little Rock | 2023/05/30 17:15 | Nathan Ponwith v Christian Langmo | 2-6,7-5,7-5 |