| KL Masters Qual | 10/31 03:50 | 5 | 로자인, 파이즈 v Samuel Lee | L | 2-1 | |
| Indonesia Masters | 10/25 03:00 | 6 | 럼베이, 이흐산 레오나르도 이마누엘 v Samuel Lee | L | 2-1 | |
| Indonesian Masters Qual | 10/24 10:00 | - | Muhammad Reza Al Fajri v Samuel Lee | - | Walkover | |
| Indonesian Masters Qual | 10/24 07:40 | 5 | Ze Xi Sean Ngu v Samuel Lee | W | 0-2 | |
| Kaohsiung Masters Qual | 09/26 08:50 | - | Cheng-Han Tsai v Samuel Lee | L | 2-0 | |
| Kaohsiung Masters Qual | 09/26 03:50 | 5 | Samuel Lee v Chun, K. L. | W | 2-0 | |
| Yozu Indonesia Masters 2019, MS, Qualification | 09/05 05:55 | 5 | Jason Christ Alexander v Samuel Lee | L | 2-0 | |
| Dutch Int. | 04/14 11:05 | - | Samuel Lee v 야나키예프, 디미타르 | L | 1-2 | |
| Dutch Int. Qual | 04/13 17:41 | - | Dominik Kwinta v Samuel Lee | W | 1-2 | |
| Dutch Int. | 04/13 16:40 | - | Dominik Kwinta v Samuel Lee | W | 1-2 | |
| Dutch Int. Qual | 04/13 11:30 | - | Samuel Lee v Marcus Viscovich | W | 2-1 | |
| Dutch Int. Qual | 04/13 08:15 | - | 홀쉬케, 브라이언 v Samuel Lee | W | 1-2 |