Stadium: Court N5 Round: 26 Ground: Hardcourt outdoor
| ITF M25 Austin | 2021/11/16 23:10 | Nathan Ponwith v Rapp, Austin | 6-2,6-4 |
| ITF M25 Harlingen | 2021/11/10 16:30 | Nathan Ponwith v Bruno Kuzuhara | 2-6,3-6 |
| ITF M15 Fayetteville | 2021/11/03 21:00 | Nathan Ponwith v Duarte Vale | 6-2,3-6,3-6 |
| ITF - M25 Calabasas | 2021/10/30 21:00 | Rinky Hijikata v Nathan Ponwith | 6-2,6-3 |
| ITF - M25 Calabasas | 2021/10/29 18:00 | Nathan Ponwith v Basing, Max | 6-4,6-4 |
| ITF - M25 Calabasas | 2021/10/28 19:50 | Farren, Connor v Nathan Ponwith | 7-6,0-6,5-7 |
| ITF - M25 Calabasas | 2021/10/27 00:40 | Nathan Ponwith v Andre Ilagan | 6-3,6-3 |
| ITF M15 Ithaca | 2021/10/07 16:05 | A.J Catanzariti v Nathan Ponwith | 6-4,6-3 |
| ITF M25 Austin | 2021/11/16 20:00 | Philip Henning v Johnson, Luke | 6-4,6-4 |
| Coupe Davis | 2021/09/18 16:55 | Philip Henning v Rodriguez-Pace, Ricardo | 6-4,6-4 |
| Coupe Davis | 2019/09/14 10:40 | Philip Henning v Gabriel Donev | 6-2,6-3 |
| Coupe Davis | 2018/10/20 12:00 | Joao Domingues v Philip Henning | 6-4,6-0 |
| ITF South Africa F3 | 2016/11/16 23:00 | Philip Henning v Christoph Negritu | 2-6,2-6 |
| ITF South Africa F3 | 2016/11/15 23:00 | Philip Henning v Hochwalt, Tyler | 7-6,6-2 |