Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| Challenger Binghamton | 2019/07/23 17:20 | Nathan Ponwith v Aleksandar Vukic | 2-6,1-6 |
| ITF M25 Iowa City | 2019/07/18 14:00 | Evan Zhu v Nathan Ponwith | 6-3,6-2 |
| ITF M25 Iowa City | 2019/07/16 19:05 | Tristan Boyer v Nathan Ponwith | 6-4,2-6,1-6 |
| ITF M15 Norman | 2019/07/12 15:00 | Austin Rapp v Nathan Ponwith | 7-6,1-6,7-5 |
| ITF M15 Norman | 2019/07/11 14:00 | Spencer Papa v Nathan Ponwith | 6-7,4-6 |
| ITF M15 Norman | 2019/07/09 15:00 | David Fox v Nathan Ponwith | 4-6,2-6 |
| ITF M25 Tulsa | 2019/06/18 18:55 | Nathan Ponwith v Gijs Brouwer | 3-6,3-6 |
| ITF M25 Wichita | 2019/06/12 17:25 | Nathan Ponwith v Ezekiel Clark | 1-6,6-1,4-6 |
| ITF M15 Cancun | 2019/07/30 15:30 | Brandon Walkin v Joshua Ortlip | 6-4,4-6,3-6 |
| ITF M15 Cancun | 2019/07/25 16:45 | Jean Thirouin v Brandon Walkin | 6-1,6-4 |
| ITF M15 Cancun | 2019/07/23 13:30 | Brandon Walkin v Ronan Joncour | 6-2,3-6,6-0 |
| ITF M15 Cancun | 2019/06/14 13:30 | Brandon Walkin v Alejandro Mendoza | 6-2,6-2 |
| ITF M15 Cancun | 2019/06/13 16:20 | Brandon Walkin v Kamen Damov | 6-4,6-2 |
| ITF M15 Cancun | 2019/06/11 15:35 | Matthew Romios v Brandon Walkin | 3-6,6-2,3-6 |
| ITF M15 Cancun | 2019/06/07 13:30 | Brandon Walkin v Nick Hardt | 5-7,1-6 |
| ITF M15 Cancun | 2019/06/06 15:30 | Nicolas Mejia v Brandon Walkin | 5-7,6-1,5-7 |