Stadium: Court 2 Round: 28 Ground: Hardcourt outdoor
| ITF M25 Edwardsville | 2019/08/09 16:30 | Dunbar, Jacob 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 |
| Binghamton, USA | 2019/07/23 17:20 | Nathan Ponwith v Aleksandar Vukic | 2-6,1-6 |
| Iowa City, Singles Qualifying M-ITF-USA-22A | 2019/07/18 14:00 | Evan Zhu v Nathan Ponwith | 6-3,6-2 |
| Iowa City, Singles Qualifying M-ITF-USA-22A | 2019/07/16 19:05 | Tristan Boyer v Nathan Ponwith | 6-4,2-6,1-6 |
| ITF M15 Norman | 2019/07/12 15:00 | Rapp, Austin v Nathan Ponwith | 7-6,1-6,7-5 |
| ITF M15 Norman | 2019/07/11 14:00 | Papa, Spencer v Nathan Ponwith | 6-7,4-6 |
| ITF M25 Edwardsville | 2019/08/09 15:00 | Lebedev, Alexander v Santiago Rodriguez Taverna | 6-4,6-2 |
| ITF M25 Edwardsville | 2019/08/08 15:00 | Bangoura, Sekou v Lebedev, Alexander | 1-6,4-6 |
| ITF M25 Edwardsville | 2019/08/07 14:30 | Cozbinov, Alexander v Lebedev, Alexander | 2-6,7-5,4-6 |
| ITF M25 Edwardsville | 2019/08/06 14:00 | Lebedev, Alexander v Abraham Asaba | 6-1,6-3 |
| Challenger Lexington | 2019/07/30 14:30 | Lebedev, Alexander v Alexander Ritschard | 6-4,2-6,3-6 |
| Challenger Granby | 2019/07/22 15:45 | Lebedev, Alexander v Gleb Sakharov | 3-6,6-1,0-6 |
| Iowa City, Singles Qualifying M-ITF-USA-22A | 2019/07/17 17:00 | Hady Habib v Lebedev, Alexander | 6-3,6-4 |
| Iowa City, Singles Qualifying M-ITF-USA-22A | 2019/07/16 15:00 | Lebedev, Alexander v Rotsaert, Alexandre | 6-4,7-5 |