| French Open | 2018/10/24 08:30 | Khosit Phetpradab v Dong Keun Lee | L | 1-2 |
| Japan Open | 2018/09/15 03:30 | Dong Keun Lee v Khosit Phetpradab | W | 0-2 |
| US Open | 2018/06/16 21:45 | Dong Keun Lee v Khosit Phetpradab | L | 2-1 |
| All England Open | 2017/11/23 08:20 | Khosit Phetpradab v Dong Keun Lee | L | 0-2 |
| Giraldilla Int. XD | 2018/11/29 06:35 | Joo Ven Soong v Khosit Phetpradab | L | 2-0 |
| Giraldilla Int. XD | 2018/11/28 10:20 | Jen Hao Hsu v Khosit Phetpradab | W | 0-2 |
| Indonesia Masters XD | 2018/11/15 05:30 | Wan Ho Son v Khosit Phetpradab | L | 2-0 |
| Indonesia Masters XD | 2018/11/14 03:40 | Khosit Phetpradab v Sai Praneeth B. | W | 2-1 |
| French Open | 2018/10/24 08:30 | Khosit Phetpradab v Dong Keun Lee | L | 1-2 |
| Denmark Open | 2018/10/19 14:00 | Khosit Phetpradab v Kento Momota | L | 0-2 |
| Denmark Open | 2018/10/18 07:40 | Khosit Phetpradab v Ka Long Angus Ng | W | 2-0 |
| Denmark Open | 2018/10/16 07:00 | Khosit Phetpradab v Brice Leverdez | W | 2-0 |
| Giraldilla Int. XD | 2018/11/29 05:50 | Dong Keun Lee v Ihsan Maulana Mustofa | L | 0-2 |
| Giraldilla Int. XD | 2018/11/28 03:00 | Dong Keun Lee v Parupalli Kashyap | W | 2-1 |
| Indonesia Masters XD | 2018/11/16 04:40 | Dong Keun Lee v Wan Ho Son | L | 0-2 |
| Indonesia Masters XD | 2018/11/15 10:30 | Dong Keun Lee v Jan O Jorgensen | W | 2-0 |
| Indonesia Masters XD | 2018/11/14 12:00 | Tien Chen Chou v Dong Keun Lee | W | 1-2 |
| All England Open | 2018/11/07 07:00 | Dong Keun Lee v Tien Chen Chou | L | 1-2 |
| French Open | 2018/10/25 12:40 | Srikanth Kidambi v Dong Keun Lee | L | 2-1 |
| French Open | 2018/10/24 08:30 | Khosit Phetpradab v Dong Keun Lee | W | 1-2 |