Head to Head
| Qatar Open Women | 2017/10/21 10:00 | Sangsu Lee v Koki Niwa | L | 2-4 |
Home History
| Austrian Open | 2019/11/13 16:05 | Sangsu Lee v Benedikt Duda | L | 2-4 |
| Austrian Open | 2019/11/13 11:40 | Sangsu Lee v Seungmin Cho | W | 4-1 |
| Austrian Open | 2019/11/12 16:00 | Sangsu Lee v Alexander Chen | W | 4-1 |
| Team World Cup | 2019/11/10 05:30 | Zhendong Fan v Sangsu Lee | L | 3-0 |
| Team World Cup | 2019/11/08 05:00 | Sangsu Lee v Eric Jouti | L | 1-3 |
| Team World Cup | 2019/11/06 09:00 | Sangsu Lee v Kristian Karlsson | W | 3-0 |
| German Open | 2019/10/11 19:10 | Xin Xu v Sangsu Lee | L | 4-2 |
| German Open | 2019/10/10 14:40 | Panagiotis Gionis v Sangsu Lee | W | 3-4 |
Away History
| Austrian Open | 2019/11/15 16:50 | Koki Niwa v Mattias Falck | W | 4-2 |
| Austrian Open | 2019/11/14 17:20 | Koki Niwa v Benedikt Duda | W | 4-2 |
| Team World Cup | 2019/11/06 09:00 | Koki Niwa v Daniel Habesohn | W | 3-2 |
| Team World Cup | 2019/11/06 03:30 | Liam Pitchford v Koki Niwa | L | 3-0 |
| German Open | 2019/10/11 16:40 | Youngsik Jeoung v Koki Niwa | L | 4-3 |
| German Open | 2019/10/10 14:40 | Kenta Matsudaira v Koki Niwa | W | 1-4 |
| Swedish Open | 2019/10/04 16:00 | Koki Niwa v Simon Gauzy | L | 2-4 |
| Swedish Open | 2019/10/03 18:30 | Koki Niwa v Takuya Jin | W | 4-2 |