Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Tay Ninh | 2019/09/30 04:35 | Nordstrom, Per v Credit Chaiyarin | 1-6,0-6 |
| ITF M25 Tay Ninh | 2019/09/29 02:00 | Xin Hu v Credit Chaiyarin | 6-3,3-6,3-10 |
| Hua Hin, Singles M-ITF-THA-07A | 2019/09/04 08:30 | Credit Chaiyarin v Takeuchi, Kento (1987) | 2-6,5-7 |
| Hua Hin, Singles M-ITF-THA-07A | 2019/08/21 10:05 | Credit Chaiyarin v Tsung-Hao Huang | 2-6,6-2,5-7 |
| Hua Hin, Singles M-ITF-THA-07A | 2019/08/19 06:05 | Kazuma Kawachi v Credit Chaiyarin | 2-6,4-6 |
| Nonthaburi, Singles M-ITF-THA-01A | 2019/07/30 06:30 | Wattanakul, Pol v Credit Chaiyarin | 6-2,4-6,6-4 |
| Nonthaburi, Singles M-ITF-THA-01A | 2019/07/23 05:45 | Credit Chaiyarin v Moritani, Soichiro | 2-6,3-6 |
| ITF Dominican Republic F1 | 2018/11/25 14:00 | Luis Britto v Credit Chaiyarin | 6-2,6-0 |
| ITF M15 Cancun | 2019/09/13 21:15 | Brymer, Gage v Naoki Nakagawa | 6-3,6-2 |
| ITF M15 Cancun | 2019/09/12 17:00 | Naoki Nakagawa v Mendoza, Alejandro | 6-3,6-2 |
| ITF M15 Cancun | 2019/09/11 18:15 | Naoki Nakagawa v Matt Kuhar | 6-3,4-6,6-2 |
| ITF M15 Cancun | 2019/08/29 16:20 | Naoki Nakagawa v Olivares, Jose | 7-6,3-6,4-6 |
| ITF M15 Cancun | 2019/08/28 17:25 | Naoki Nakagawa v Ma, Jiaxi | 6-3,6-0 |
| ITF M15 Cancun | 2019/07/12 13:30 | Naoki Nakagawa v Brymer, Gage | 4-6,4-6 |
| ITF M15 Cancun | 2019/07/11 16:10 | Naoki Nakagawa v Hassey, Carlos | 6-2,6-4 |
| ITF M15 Cancun | 2019/07/09 13:30 | Naoki Nakagawa v Patrick Foley | 7-5,6-4 |