Stadium: Court 2 Round: 29 Ground: Hardcourt outdoor
| ITF M25 Edwardsville | 2019/08/10 16:00 | Nathan Ponwith v Alexander Lebedev | 7-6,3-6,7-5 |
| ITF M25 Edwardsville | 2019/08/09 16:30 | Jacob Dunbar v Nathan Ponwith | 6-4,4-6,5-7 |
| ITF M25 Edwardsville | 2019/08/08 16:20 | Nathan Ponwith v Christian Langmo | 7-5,5-7,6-4 |
| 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 M25 Edwardsville | 2019/08/10 18:55 | Petros Chrysochos v Ezekiel Clark | 3-6,6-4,6-3 |
| ITF M25 Edwardsville | 2019/08/09 16:55 | Petros Chrysochos v Felix Corwin | 1-6,6-4,6-3 |
| ITF M25 Edwardsville | 2019/08/08 15:00 | Petros Chrysochos v Nicolas Moreno De Alboran | 7-6,7-6 |
| ITF M25 Edwardsville | 2019/08/07 18:55 | Petros Chrysochos v Alfredo Perez | 6-3,3-6,6-3 |
| Davis Cup | 2019/07/20 10:35 | Petros Chrysochos v Peter Bothwell | 7-5,6-3 |
| Davis Cup | 2019/07/19 09:55 | Vital Flurin Leuch v Petros Chrysochos | 1-6,3-6 |
| Davis Cup | 2019/07/18 10:05 | Petros Chrysochos v Rajan Dushi | 6-1,6-0 |
| Davis Cup | 2019/07/16 17:15 | Petros Chrysochos v Mikayel Khachatryan | 6-2,6-0 |