| ITF M15 Austin | 2019/11/22 20:00 | Harrison Adams v Roelofse, Ruan | 2-6,6-1,2-6 |
| ITF M15 Austin | 2019/11/21 16:00 | Harrison Adams v Harper, Cleeve | 6-2,6-2 |
| ITF M15 Austin | 2019/11/19 17:30 | Harrison Adams v Breitbach, Kai | 6-0,6-2 |
| ITF - M25 Naples | 2019/10/30 17:55 | Adrian Andreev v Harrison Adams | 6-0,6-1 |
| Fort Worth, Singles Qualifying M-ITF-USA-42A | 2019/10/22 16:25 | Ryan Peniston v Harrison Adams | 7-6,6-0 |
| Waco, Singles M-ITF-USA-41A | 2019/10/16 21:25 | Harrison Adams v Michael Geerts | 5-7,3-6 |
| ITF M25 Harlingen | 2019/09/26 22:00 | Harrison Adams v Timo Stodder | 6-7,3-6 |
| ITF M25 Harlingen | 2019/09/26 00:45 | Harrison Adams v George Goldhoff | 7-5,7-6 |