Stadium: Center Court Round: 14 Ground: Hardcourt outdoor
| ATP Seoul | 2022/09/24 04:05 | Duckhee Lee v Tung-Lin Wu | 6-4,4-6,5-7 |
| ITF M15 Daegu | 2022/09/03 01:45 | Duckhee Lee v Kim, Cheong-Eui | 5-7,1-6 |
| ITF M15 Daegu | 2022/09/02 02:00 | Duckhee Lee v Kim, Geun Jun | 6-3,6-2 |
| ITF M15 Daegu | 2022/09/01 02:00 | Duckhee Lee v Ryuki Matsuda | 7-6,6-2 |
| ITF M15 Daegu | 2022/08/31 08:10 | Duckhee Lee v Issei Okamura | 5-7,6-1,6-3 |
| ITF M15 Changwon | 2022/08/25 03:05 | Issei Okamura v Duckhee Lee | 6-2,3-6,7-5 |
| ITF M15 Changwon | 2022/08/24 08:20 | Woobin Shin v Duckhee Lee | 3-6,2-6 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2022/08/12 02:00 | Mukund Sasikumar v Duckhee Lee | 6-0,6-1 |