Stadium: Court 2 Round: 27 Ground: Hardcourt indoor
| ITF M15 Norman | 2019/07/11 14:00 | Rapp, Austin v Neel Rajesh | 7-5,6-1 |
| ITF M15 Norman | 2019/07/10 16:10 | Rapp, Austin v Touliatos, Preston | 6-1,6-2 |
| ITF M15 Cancun | 2019/07/05 13:30 | Rapp, Austin v Lebedev, Alexander | 5-7,6-3,3-6 |
| ITF M15 Cancun | 2019/07/04 16:05 | Rapp, Austin v Mwendwa Mbithi | 6-2,6-7,7-6 |
| ITF M15 Cancun | 2019/07/02 16:50 | Rapp, Austin v Reyna, Eduardo | 6-1,6-1 |
| ITF M15 Cancun | 2019/06/11 13:30 | Gomez, Lucas v Rapp, Austin | 6-3,4-6,6-3 |
| ITF M15 Cancun | 2019/06/05 13:30 | Rapp, Austin v C. Oosterbaan, Paul | 3-6,6-4,7-5 |
| ITF M15 Cancun | 2019/06/03 16:00 | Rapp, Austin v Statham, Mikal | 6-3,6-1 |
| ITF M15 Norman | 2019/07/11 14:00 | Papa, Spencer v Nathan Ponwith | 6-7,4-6 |
| ITF M15 Norman | 2019/07/09 15:00 | Fox, David v Nathan Ponwith | 4-6,2-6 |
| Tulsa, Singles Main, M-ITF-USA-16A | 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 M25 Wichita | 2019/06/11 15:00 | Stalder, Reese v Nathan Ponwith | 4-6,6-3,6-10 |
| ITF M25 Wichita | 2019/06/10 18:00 | Nathan Ponwith v Giddens, Maxwell | 6-4,6-3 |
| ITF M15 Champaign | 2019/06/09 17:00 | Strong Kirchheimer v Nathan Ponwith | 6-7,4-6 |
| ITF M15 Champaign | 2019/06/08 19:30 | Sumit Sarkar v Nathan Ponwith | 3-6,4-6 |