| Boom Cup | 2020/05/15 15:30 | Hiromi Yokoyama v Akira Chikaraishi | L | 0-3 |
| Boom Cup | 2020/05/14 20:30 | Hiromi Yokoyama v Akira Chikaraishi | L | 0-3 |
| Boom Cup | 2020/05/07 19:00 | Hiromi Yokoyama v Akira Chikaraishi | L | 1-3 |
| Boom Cup | 2020/05/03 17:00 | Akira Chikaraishi v Hiromi Yokoyama | L | 3-0 |
| Boom Cup | 2020/05/02 20:30 | Akira Chikaraishi v Hiromi Yokoyama | L | 3-0 |
| Boom Cup | 2020/04/28 20:00 | Hiromi Yokoyama v Akira Chikaraishi | L | 0-3 |
| Boom Cup | 2020/04/27 18:00 | Akira Chikaraishi v Hiromi Yokoyama | L | 3-2 |