Stadium: Court 13 Round: 26 Ground: Hardcourt outdoor
| Challenger Cary | 2019/09/11 15:00 | Mitchell Krueger v Nguyen, Daniel | 3-6,6-3,3-6 |
| Challenger Cary | 2019/09/09 21:30 | Nguyen, Daniel v Sigouin, Benjamin | 6-1,6-3 |
| Winston-Salem, USA | 2019/08/18 19:00 | Sarmiento, Raymond v Nguyen, Daniel | 6-2,6-3 |
| Winston-Salem, USA | 2019/08/17 19:40 | Nguyen, Daniel v Arevalo-Gonzalez, Marcelo | 6-4,4-6,7-6 |
| ITF M25 Memphis | 2019/08/16 20:00 | Roberto Cid Subervi v Nguyen, Daniel | 6-4,4-6,6-2 |
| ITF M25 Memphis | 2019/08/15 23:00 | King, Kevin v Nguyen, Daniel | 4-6,3-6 |
| ITF M25 Memphis | 2019/08/14 15:00 | Caruana, Liam v Nguyen, Daniel | 4-6,6-7 |
| Challenger Winnipeg | 2019/07/13 17:00 | Schnur, Brayden v Nguyen, Daniel | 6-2,7-5 |
| Challenger Cary | 2019/09/11 15:00 | Aragone, JC v Polansky, Peter | 7-6,6-4 |
| Challenger Cary | 2019/09/10 17:25 | Aragone, JC v Farren, Connor | 6-2,7-6 |
| New Haven, USA | 2019/09/04 16:00 | Aragone, JC v Schnur, Brayden | 5-7,2-6 |
| New Haven, USA | 2019/09/03 14:00 | Carr, Simon v Aragone, JC | 2-6,3-6 |
| US Open, New York, USA | 2019/08/19 19:05 | Soonwoo Kwon v Aragone, JC | 6-4,1-6,6-4 |
| Vancouver, Canada | 2019/08/13 04:15 | Aragone, JC v Sigouin, Benjamin | 3-6,1-6 |
| Challenger Aptos | 2019/08/05 22:30 | Aragone, JC v Hoyt, Evan | 4-6,2-6 |
| Challenger Lexington | 2019/08/03 19:10 | Aragone, JC v Jannik Sinner | 2-6,4-6 |