Stadium: Centre Court Round: 26 Ground: Hardcourt outdoor
| ITF M25 Tay Ninh | 2019/10/02 05:00 | Daniel Nguyen v Alen Rogic-Hadzalic | 6-3,6-1 |
| Challenger Columbus 3 | 2019/09/16 17:10 | Daniel Nguyen v Gabriel Petit | 6-7,6-3,4-6 |
| Challenger Cary | 2019/09/12 16:25 | Daniel Nguyen v JC Aragone | 3-6,2-6 |
| Challenger Cary | 2019/09/11 15:00 | Mitchell Krueger v Daniel Nguyen | 3-6,6-3,3-6 |
| Challenger Cary | 2019/09/09 21:30 | Daniel Nguyen v Benjamin Sigouin | 6-1,6-3 |
| ATP Winston-Salem | 2019/08/18 19:00 | Raymond Sarmiento v Daniel Nguyen | 6-2,6-3 |
| ATP Winston-Salem | 2019/08/17 19:40 | Daniel Nguyen v Marcelo Arevalo | 6-4,4-6,7-6 |
| ITF M25 Memphis | 2019/08/16 20:00 | Roberto Cid Subervi v Daniel Nguyen | 6-4,4-6,6-2 |
| ITF M25 Tay Ninh | 2019/10/02 02:00 | Arjun Kadhe v Makoto Ochi | 2-6,6-2,2-6 |
| ITF M15 Nanchang | 2019/09/29 03:00 | Makoto Ochi v Yan Sabanin | 6-4,6-7,6-3 |
| ITF M15 Nanchang | 2019/09/28 02:00 | Makoto Ochi v Vladimir Ivanov | 3-6,6-4,6-3 |
| ITF M15 Nanchang | 2019/09/27 03:40 | Makoto Ochi v Chukang Wang | 3-6,6-2,6-4 |
| ITF M15 Nanchang | 2019/09/26 03:50 | Makoto Ochi v Kousuke Ogura | 6-2,6-1 |
| ITF M15 Nanchang | 2019/09/24 05:10 | Makoto Ochi v Ye Cong Mo | 6-0,6-2 |
| ITF M15 Nanchang | 2019/09/21 04:55 | Makoto Ochi v Ryota Tanuma | 2-6,6-1,3-6 |
| ITF M15 Nanchang | 2019/09/20 05:00 | Makoto Ochi v Jianhui Li | 6-2,6-2 |