Head to Head
| WTT Contender Doha | 2024/01/19 10:30 | Timo Boll v Sangsu Lee | L | 3-1 |
| WTT Champions Frankfurt | 2023/10/29 13:25 | Sangsu Lee v Timo Boll | W | 3-1 |
| Czech Open | 2019/08/24 08:40 | Sangsu Lee v Timo Boll | L | 3-4 |
| Qatar Open Women | 2018/05/05 17:30 | Sangsu Lee v Timo Boll | L | 2-3 |
| German Open WD | 2017/11/12 11:00 | Timo Boll v Sangsu Lee | L | 4-0 |