| WTT Star Contender Goa | 2024/01/26 13:05 | Sangsu Lee v Junsung Oh | L | 0-3 |
| WTT Contender Doha | 2024/01/19 10:30 | Timo Boll v Sangsu Lee | L | 3-1 |
| WTT Contender Doha | 2024/01/18 10:25 | Panagiotis Gionis v Sangsu Lee | W | 1-3 |
| WTT Contender Doha | 2024/01/17 12:25 | Chih Yuan Chuang v Sangsu Lee | W | 1-3 |
| WTT Star Contender Doha | 2024/01/10 12:25 | Yukiya Uda v Sangsu Lee | L | 3-0 |
| WTT Contender Taiyuan | 2023/11/09 05:05 | Cheng-Jui Kao v Sangsu Lee | L | 3-1 |
| WTT Champions Frankfurt | 2023/11/03 18:30 | Sangsu Lee v Felix Lebrun | L | 2-3 |
| WTT Champions Frankfurt | 2023/11/01 15:30 | Zhendong Fan v Sangsu Lee | W | 1-3 |
| World Team Championship | 2024/02/16 05:00 | Felipe Olivares v Timothy Choi | L | 3-2 |