| Swiss Open | 2021/03/06 10:45 | Kunlavut Vitidsarn v Zii Jia Lee | W | 2-0 |
| Thailand Masters | 2017/02/08 10:20 | Zii Jia Lee v Kunlavut Vitidsarn | L | 2-0 |
| Orleans Masters | 2021/03/27 11:00 | Toma Junior Popov v Kunlavut Vitidsarn | L | 2-1 |
| Orleans Masters | 2021/03/26 12:30 | Kunlavut Vitidsarn v Brice Leverdez | W | 2-0 |
| Orleans Masters | 2021/03/25 15:15 | Kunlavut Vitidsarn v Xiaodong Sheng | W | 2-0 |
| Orleans Masters | 2021/03/24 16:15 | Kunlavut Vitidsarn v Yanis Gaudin | W | 2-0 |
| All England Open | 2021/03/17 15:20 | Kunlavut Vitidsarn v Jonatan Christie | L | 0-2 |
| Swiss Open | 2021/03/07 11:00 | Viktor Axelsen v Kunlavut Vitidsarn | L | 2-0 |
| Swiss Open | 2021/03/06 10:45 | Kunlavut Vitidsarn v Zii Jia Lee | W | 2-0 |
| Swiss Open | 2021/03/05 13:15 | Kunlavut Vitidsarn v Ajay Jayaram | W | 2-0 |
| All England Open | 2021/03/21 11:00 | Zii Jia Lee v Viktor Axelsen | W | 2-1 |
| All England Open | 2021/03/20 12:20 | Zii Jia Lee v Mark Caljouw | W | 2-0 |
| All England Open | 2021/03/19 10:20 | Kento Momota v Zii Jia Lee | W | 0-2 |
| All England Open | 2021/03/18 12:20 | Zii Jia Lee v Hans-Kristian Vittinghus | W | 2-0 |
| All England Open | 2021/03/17 18:20 | Zii Jia Lee v Brian Yang | W | 2-0 |
| Swiss Open | 2021/03/06 10:45 | Kunlavut Vitidsarn v Zii Jia Lee | L | 2-0 |
| Swiss Open | 2021/03/05 13:40 | Sai Praneeth B. v Zii Jia Lee | W | 0-2 |
| Swiss Open | 2021/03/04 13:00 | Victor Svendsen v Zii Jia Lee | W | 0-2 |