Stadium: Court 5 Round: 26 Ground: Hardcourt outdoor
| ITF M25 Edwardsville | 2019/08/07 15:00 | Nathan Ponwith v Brandon Walkin | 6-4,2-6,6-1 |
| 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 Edwardsville | 2019/08/07 17:05 | Christian Langmo v Michail Pervolarakis | 2-6,7-5,6-2 |
| ITF M25 Decatur | 2019/08/03 15:00 | Santiago Rodriguez Taverna v Christian Langmo | 6-3,2-6,7-6 |
| ITF M25 Decatur | 2019/08/02 16:30 | Christian Langmo v Liam Caruana | 5-7,6-4,7-6 |
| ITF M25 Decatur | 2019/08/01 17:25 | Juan Carlos Aguilar v Christian Langmo | 2-6,3-6 |
| ITF M25 Decatur | 2019/07/31 16:40 | Christian Langmo v McClain Kessler | 6-4,6-4 |
| ITF M15 Cancun | 2019/07/28 15:00 | Jean Thirouin v Christian Langmo | 2-6,4-6 |
| ITF M15 Cancun | 2019/07/26 15:50 | Christian Langmo v Aron Pierce | 6-4,6-4 |
| ITF M15 Cancun | 2019/07/25 15:35 | Christian Langmo v Jack Gibbens | 6-4,6-3 |