| WTT Contender Doha | 03/04 11:00 | 1 |
Tomokazu Harimoto
v
Sangsu Lee 
|
L | 3-1 | |
| WTT Contender Doha | 03/03 13:15 | 1 |
Sangsu Lee v
Robert Gardos
|
W | 3-1 | |
| German Open | 01/30 19:50 | 5 |
Sangsu Lee v
Simon Gauzy
|
L | 1-4 | |
| World Team Olympic Quals | 01/24 11:00 | - |
Sangsu Lee v
Pavel Sirucek
|
W | 3-0 | |
| World Cup | 11/30 03:15 | 4 |
Sangsu Lee v
Koki Niwa
|
L | 2-4 | |
| World Cup | 11/29 05:00 | - |
Sangsu Lee v
Kanak Jha
|
W | 4-2 | |
| World Cup | 11/29 02:00 | - |
Sangsu Lee v
Omar Assar
|
W | 4-1 | |
| T2 Diamond | 11/21 11:00 | - |
Sangsu Lee v
Patrick Franziska
|
L | 1-4 | |
| Austrian Open | 11/13 16:05 | - |
Sangsu Lee v
Benedikt Duda
|
L | 2-4 | |
| Austrian Open | 11/13 11:40 | - |
Sangsu Lee v
Seungmin Cho
|
W | 4-1 | |
| Austrian Open | 11/12 16:00 | - |
Sangsu Lee v
Alexander Chen
|
W | 4-1 | |
| Team World Cup | 11/10 05:30 | - |
Zhendong Fan
v
Sangsu Lee
|
L | 3-0 | |
| Team World Cup | 11/08 05:00 | - |
Sangsu Lee v
Eric Jouti
|
L | 1-3 | |
| Team World Cup | 11/06 09:00 | - |
Sangsu Lee v
Kristian Karlsson
|
W | 3-0 | |
| German Open | 10/11 19:10 | 4 |
Xin Xu
v
Sangsu Lee
|
L | 4-2 | |
| German Open | 10/10 14:40 | 5 |
Panagiotis Gionis
v
Sangsu Lee
|
W | 3-4 | |
| Swedish Open | 10/04 11:00 | 4 |
Xin Xu
v
Sangsu Lee
|
L | 4-1 | |
| Swedish Open | 10/03 14:20 | 5 |
Alexander Shibaev
v
Sangsu Lee
|
W | 0-4 | |
| Czech Open | 08/24 08:40 | 3 |
Sangsu Lee v
Timo Boll
|
L | 3-4 | |
| Czech Open | 08/23 11:00 | 4 |
Sangsu Lee v
Simon Gauzy
|
W | 4-2 | |
| Czech Open | 08/22 15:10 | 5 |
Sangsu Lee v
Daeseong Cho
|
W | 4-2 | |
| Bulgaria Open | 08/15 17:55 | 5 |
Sangsu Lee v
Darko Jorgic
|
L | 3-4 | |
| Australian Open | 07/12 10:55 | 4 |
Sangsu Lee v
Gaoyuan Lin
|
L | 3-4 | |
| Australian Open | 07/11 10:50 | 5 |
Sangsu Lee v
Yang Wang
|
W | 4-1 | |
| Korea Open | 07/04 11:20 | 5 |
Marcos Freitas
v
Sangsu Lee
|
L | 4-3 | |
| Japan Open | 06/14 10:20 | 4 |
Wen Sun
v
Sangsu Lee
|
L | 4-1 | |
| Japan Open | 06/14 04:20 | 5 |
Zihao Zhao
v
Sangsu Lee
|
W | 2-4 | |
| Hong Kong Open | 06/06 13:00 | 5 |
Simon Gauzy
v
Sangsu Lee
|
L | 4-3 | |
| China Open | 05/30 12:15 | 5 |
Sangsu Lee v
Simon Gauzy
|
L | 1-4 | |
| World Championship | 04/25 08:00 | 4 |
Sangsu Lee v
Mattias Falck
|
L | 1-4 |