| Taipei Open | 07/22 07:30 | - | Phetpradab, Khosit v Kodai Naraoka | L | 1-2 | |
| Taipei Open | 07/21 05:20 | - | Max Weisskirchen v Phetpradab, Khosit | W | 0-2 | |
| Taipei Open | 07/20 05:00 | 5 | Lucas Claerbout v Phetpradab, Khosit | W | 1-2 | |
| Singapore Open | 07/13 01:20 | 5 | Jun Peng Zhao v Phetpradab, Khosit | L | 2-0 | |
| Indonesia Masters | 06/08 07:20 | - | Phetpradab, Khosit v Thammasin, S. | L | 1-2 | |
| Thomas Cup | 05/11 07:00 | - | Phetpradab, Khosit v Kean Yew Loh | L | 0-2 | |
| Asia Championships | 04/27 06:20 | 5 | Tien Minh Nguyen v Phetpradab, Khosit | L | 2-0 | |
| Open d'Angleterre | 03/17 14:30 | 5 | Mark Caljouw v Phetpradab, Khosit | L | 2-0 | |
| Open de Suisse | 03/04 13:25 | 4 | Viktor Axelsen v Phetpradab, Khosit | L | 2-0 | |
| Open de Suisse | 03/03 12:45 | 5 | Phetpradab, Khosit v Nhat Nguyen | W | 2-1 | |
| Thailand Open | 01/19 02:00 | 5 | Shesar Hiren Rhustavito v Phetpradab, Khosit | L | 2-0 | |
| Thailand Open | 01/14 03:20 | 4 | Phetpradab, Khosit v Rasmus Gemke | L | 0-2 | |
| Thailand Open | 01/12 09:40 | 5 | Avihingsanon, Suppanyu v Phetpradab, Khosit | W | 1-2 | |
| Open d'Angleterre | 03/11 10:50 | 5 | Tzu Wei Wang v Phetpradab, Khosit | L | 2-1 | |
| Asia Team Championships | 02/12 10:00 | - | Kodai Naraoka v Phetpradab, Khosit | L | 2-0 | |
| Masters de Thaïlande | 01/23 11:50 | 4 | Avihingsanon, Suppanyu v Phetpradab, Khosit | L | 2-1 | |
| Masters de Thaïlande | 01/22 12:00 | 5 | Phetpradab, Khosit v Huang, Y. X. | W | 2-1 | |
| Fuzhou China Open 2019, MS | 11/05 03:30 | 5 | Phetpradab, Khosit v Joergensen, J. O. | L | 0-2 | |
| Open de France | 10/22 08:20 | 5 | Huang, Y. X. v Phetpradab, Khosit | L | 2-1 | |
| Denmark Open | 10/17 10:40 | 4 | Phetpradab, Khosit v Viktor Axelsen | L | 0-2 | |
| Denmark Open | 10/16 14:00 | 5 | Phetpradab, Khosit v Tzu Wei Wang | W | 2-1 | |
| Korea Open | 09/26 04:10 | 4 | Phetpradab, Khosit v Jonatan Christie | L | 0-2 | |
| Korea Open | 09/25 07:20 | 5 | Phetpradab, Khosit v Cheuk Yiu Lee | W | 2-1 | |
| Fuzhou China Open 2019, MS | 09/18 05:20 | 5 | Phetpradab, Khosit v Tien Chen Chou | L | 0-2 | |
| World Championships | 08/19 09:30 | 6 | Liew, Daren v Phetpradab, Khosit | L | 2-0 | |
| Thailand Open | 08/02 09:30 | 3 | Ka Long Angus NG v Phetpradab, Khosit | L | 2-1 | |
| Thailand Open | 08/01 09:00 | 4 | Srikanth Kidambi v Phetpradab, Khosit | W | 1-2 | |
| Thailand Open | 07/31 06:45 | 5 | Phetpradab, Khosit v Cheuk Yiu Lee | W | 2-0 | |
| Japan Open | 07/24 02:50 | 5 | Phetpradab, Khosit v Ka Long Angus NG | L | 0-2 | |
| Indonesia Open | 07/17 05:30 | 5 | Phetpradab, Khosit v Zii Jia Lee | L | 0-2 |