Stadium: Court 2 Round: 27 Ground: Hardcourt outdoor
| ITF M25 Edwardsville | 2019/08/08 15:00 | Dunbar, Jacob v Ross, Gianni | 6-2,6-0 |
| ITF M25 Edwardsville | 2019/08/07 16:10 | Shane, Ryan v Dunbar, Jacob | 2-6,2-6 |
| ITF M25 Decatur | 2019/08/01 15:00 | Santiago Rodriguez Taverna v Dunbar, Jacob | 6-3,1-6,7-6 |
| ITF M25 Decatur | 2019/07/31 15:00 | Axel Nefve v Dunbar, Jacob | 1-6,6-2,0-6 |
| ITF M25 Champaign | 2019/07/23 21:50 | Dunbar, Jacob v Ezekiel Clark | 1-6,3-6 |
| Iowa City, Singles Qualifying M-ITF-USA-22A | 2019/07/16 18:50 | Alex Rybakov v Dunbar, Jacob | 6-1,6-2 |
| Tulsa, Singles Main, M-ITF-USA-16A | 2019/06/19 19:00 | Nick Chappell v Dunbar, Jacob | 6-3,7-6 |
| ITF M25 Wichita | 2019/06/14 15:00 | Dunbar, Jacob v Evan Zhu | 3-6,6-7 |
| 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 M15 Norman | 2019/07/09 15:00 | Fox, David v Nathan Ponwith | 4-6,2-6 |