Stadium: Court 1 Round: 25
| Open d'Australie Playoff Wilcard Australienne | 2018/11/28 04:45 | Yu Hsiou Hsu v Yang, Tsung-Hua | 6-3,6-1 |
| Challenger - Pune | 2018/11/20 09:05 | Gunneswaran, Prajnesh v Yang, Tsung-Hua | 6-4,6-4 |
| Challenger Bangalore | 2018/11/12 14:20 | Yang, Tsung-Hua v Ward, James | 6-7,4-6 |
| Shenzhen II, Chine | 2018/11/01 02:30 | Yang, Tsung-Hua v Alejandro Davidovich Fokina | 7-6,4-6,2-6 |
| Shenzhen II, Chine | 2018/10/30 05:10 | Soonwoo Kwon v Yang, Tsung-Hua | 5-7,3-6 |
| Liuzhou, Chine | 2018/10/22 04:15 | Duckhee Lee v Yang, Tsung-Hua | 6-2,6-3 |
| Ningbo, China | 2018/10/15 05:50 | Yang, Tsung-Hua v Alejandro Davidovich Fokina | 3-6,5-7 |
| Challenger Tashkent | 2018/10/08 12:15 | Alexander Bublik v Yang, Tsung-Hua | 3-6,6-3,6-4 |
| Challenger Da Nang | 2019/01/07 04:00 | Gabashvili, Teimuraz v Nguyen, Daniel | 2-6,4-6 |
| Los Angeles, Singles M-ITF-USA-01A | 2019/01/04 20:25 | Brandon Holt v Nguyen, Daniel | 6-4,6-2 |
| Los Angeles, Singles M-ITF-USA-01A | 2019/01/03 19:15 | Nguyen, Daniel v Lebedev, Alexander | 7-6,6-4 |
| Los Angeles, Singles M-ITF-USA-01A | 2019/01/01 19:40 | Alexis Gautier v Nguyen, Daniel | 1-6,2-6 |
| Challenger Champaign | 2018/11/10 17:40 | Nguyen, Daniel v Roelofse, Ruan | 2-6,2-6 |
| Challenger Knoxville | 2018/11/04 22:45 | Lammons, Nathaniel v Nguyen, Daniel | 6-4,3-6,6-4 |
| Challenger Charlottesville | 2018/10/27 18:30 | Ymer, Mikael v Nguyen, Daniel | 3-6,6-2,6-4 |
| Challenger Las Vegas | 2018/10/20 17:00 | Nguyen, Daniel v Thai-Son Kwiatkowski | 2-6,3-6 |