Stadium: Centre Court Round: 25 Ground: Hardcourt outdoor
| ITF M25 Tay Ninh | 2019/10/06 09:00 | Nam Hoang Ly v Nguyen, Daniel | 3-6,5-7 |
| ITF M25 Tay Ninh | 2019/10/05 09:00 | Kazuki Nishiwaki v Nguyen, Daniel | 2-6,3-6 |
| ITF M25 Tay Ninh | 2019/10/03 02:00 | Nguyen, Daniel v Makoto Ochi | 4-6,6-4,7-5 |
| ITF M25 Tay Ninh | 2019/10/02 05:00 | Nguyen, Daniel v Rogic Hadzalic, Alen | 6-3,6-1 |
| Columbus III, USA | 2019/09/16 17:10 | Nguyen, Daniel v Petit, Gabriel | 6-7,6-3,4-6 |
| Challenger Cary | 2019/09/12 16:25 | Nguyen, Daniel v Aragone, JC | 3-6,2-6 |
| 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 |
| Hua Hin, Singles M-ITF-THA-07A | 2019/08/29 03:00 | Yuttana Charoenphon v Ehara, Hiroyasu | 1-6,0-6 |
| Hua Hin, Singles M-ITF-THA-07A | 2019/08/28 03:00 | Seon Yong Han v Ehara, Hiroyasu | 1-6,5-7 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/21 02:30 | Bava, Haadin v Ehara, Hiroyasu | 7-5,6-4 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/15 02:30 | Ehara, Hiroyasu v Romios, Matthew Christopher | 2-6,1-6 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/14 05:25 | Ehara, Hiroyasu v Barki, Justin | 6-7,6-4,6-0 |
| Akishima, Singles M-ITF-JPN-08A | 2019/06/13 01:00 | Yuta Kikuchi v Ehara, Hiroyasu | 6-3,6-2 |
| Akishima, Singles M-ITF-JPN-08A | 2019/06/12 01:00 | Kwon, OH-Hee v Ehara, Hiroyasu | 1-6,3-6 |
| Guam, Singles M-ITF-GUM-01A | 2019/06/09 00:00 | Kikuchi, Gengo v Ehara, Hiroyasu | 6-2,6-2 |