Stadium: Court 5 Round: 25 Ground: Hardcourt indoor
| Challenger Las Vegas | 2018/10/20 17:00 | Nguyen, Daniel v Thai-Son Kwiatkowski | 2-6,3-6 |
| Canada F7, Singles | 2014/08/16 18:00 | Nguyen, Daniel v Thai-Son Kwiatkowski | 2-6,6-3,7-6 |
| ITF USA F16 | 2014/06/18 17:40 | Nguyen, Daniel v Thai-Son Kwiatkowski | 3-6,6-3,6-1 |
| Challenger Columbus | 2019/06/10 20:45 | Nguyen, Daniel v Gijs Brouwer | 6-4,6-7,7-5 |
| Little Rock, USA | 2019/06/07 17:00 | Shane, Ryan v Nguyen, Daniel | 3-6,6-3,6-4 |
| Little Rock, USA | 2019/06/05 19:00 | Nguyen, Daniel v Filip Peliwo | 4-6,6-1,6-0 |
| Little Rock, USA | 2019/06/04 20:45 | Nguyen, Daniel v King, Kevin | 6-2,6-7,6-3 |
| Challenger - Sarasota | 2019/04/15 18:40 | Nguyen, Daniel v Shane, Ryan | 6-7,5-7 |
| Zhangjiagang, China | 2019/03/19 05:45 | Nguyen, Daniel v Lorenzo Giustino | 0-6,3-6 |
| Zhangjiagang, China | 2019/03/18 03:55 | Banes, Maverick v Nguyen, Daniel | 4-6,3-6 |
| Challenger Yokohama | 2019/02/26 03:30 | Sugita, Yuichi v Nguyen, Daniel | 2-6,6-4,7-5 |
| Little Rock, USA | 2019/06/08 20:40 | Sela, Dudi v Thai-Son Kwiatkowski | 6-3,7-6 |
| Little Rock, USA | 2019/06/08 15:00 | Thai-Son Kwiatkowski v Christopher Eubanks | 7-6,6-3 |
| Little Rock, USA | 2019/06/07 19:10 | Noah Rubin v Thai-Son Kwiatkowski | 5-7,5-7 |
| Little Rock, USA | 2019/06/05 17:00 | Matias Franco Descotte v Thai-Son Kwiatkowski | 4-6,0-6 |
| Jerusalem, Israel | 2019/05/21 08:10 | Arthur Rinderknech v Thai-Son Kwiatkowski | 6-3,6-4 |
| Challenger - Savannah | 2019/05/02 15:00 | Thai-Son Kwiatkowski v Corentin Moutet | 4-6,2-6 |
| Challenger - Savannah | 2019/05/01 18:25 | Thai-Son Kwiatkowski v Andrea Collarini | 6-3,7-5 |
| Challenger - Tallahassee | 2019/04/24 17:35 | Noah Rubin v Thai-Son Kwiatkowski | 6-1,6-2 |