| Indonesia Masters XD | 2017/07/22 01:30 | Koki Watanabe v Kwang Hee Heo | W | 1-2 |
| Chinese Taipei Open | 2019/09/06 10:30 | Kwang Hee Heo v Thomas Rouxel | W | 2-0 |
| Chinese Taipei Open | 2019/09/05 09:15 | Lucas Corvee v Kwang Hee Heo | W | 0-2 |
| Chinese Taipei Open | 2019/09/04 06:10 | Kwang Hee Heo v Tommy Sugiarto | W | 2-1 |
| World Championships | 2019/08/20 12:40 | Jonatan Christie v Kwang Hee Heo | L | 2-0 |
| World Championships | 2019/08/19 07:00 | Milan Ludik v Kwang Hee Heo | W | 0-2 |
| Hyderabad Open | 2019/08/10 10:00 | Kwang Hee Heo v Kean Yew Loh | L | 1-2 |
| Hyderabad Open | 2019/08/09 11:30 | Kwang Hee Heo v Kalle Koljonen | W | 2-0 |
| Hyderabad Open | 2019/08/08 07:15 | Kwang Hee Heo v Mithun Manjunath | W | 2-1 |
| Chinese Taipei Open | 2019/09/06 09:00 | Chia Hung Lu v Koki Watanabe | W | 0-2 |
| Chinese Taipei Open | 2019/09/05 09:15 | Koki Watanabe v Kean Yew Loh | W | 2-1 |
| Chinese Taipei Open | 2019/09/04 12:30 | Chih Chieh Yang v Koki Watanabe | W | 0-2 |
| Akita Masters | 2019/08/16 02:15 | Yu Igarashi v Koki Watanabe | L | 2-1 |
| Akita Masters | 2019/08/15 05:25 | Koki Watanabe v Pannawit Thongnuam | W | 2-0 |
| Akita Masters | 2019/08/14 02:10 | Koki Watanabe v Minoru Koga | W | 2-0 |
| US Open | 2019/07/11 22:00 | Dong Keun Lee v Koki Watanabe | L | 2-1 |
| US Open | 2019/07/10 22:10 | Victor Svendsen v Koki Watanabe | W | 0-2 |