| Boom Cup | 2020/06/08 21:00 | Akira Chikaraishi v Ricardo Kojima | L | 3-2 |
| Boom Cup | 2020/06/04 20:10 | Akira Chikaraishi v Ricardo Kojima | W | 1-3 |
| Boom Cup | 2020/05/30 21:00 | Ricardo Kojima v Akira Chikaraishi | W | 3-2 |
| Boom Cup | 2020/05/28 23:30 | Ricardo Kojima v Akira Chikaraishi | W | 3-1 |
| Boom Cup | 2020/05/26 21:50 | Ricardo Kojima v Akira Chikaraishi | W | 3-0 |
| Boom Cup | 2020/05/23 20:10 | Ricardo Kojima v Akira Chikaraishi | W | 3-0 |
| Boom Cup | 2020/05/22 18:30 | Ricardo Kojima v Akira Chikaraishi | W | 3-2 |
| Boom Cup | 2020/05/19 21:00 | Ricardo Kojima v Akira Chikaraishi | W | 3-1 |
| Boom Cup | 2020/05/15 19:00 | Akira Chikaraishi v Ricardo Kojima | W | 1-3 |
| Boom Cup | 2020/05/12 19:30 | Ricardo Kojima v Akira Chikaraishi | W | 3-2 |
| Boom Cup | 2020/05/05 13:00 | Akira Chikaraishi v Ricardo Kojima | W | 2-3 |
| Boom Cup | 2020/05/03 20:00 | Ricardo Kojima v Akira Chikaraishi | L | 1-3 |
| Boom Cup | 2020/05/02 15:00 | Akira Chikaraishi v Ricardo Kojima | L | 3-1 |
| Boom Cup | 2020/04/30 13:30 | Ricardo Kojima v Akira Chikaraishi | W | 3-2 |
| Boom Cup | 2020/04/22 16:00 | Akira Chikaraishi v Ricardo Kojima | W | 2-3 |
| Boom Cup | 2020/04/21 16:30 | Akira Chikaraishi v Ricardo Kojima | W | 0-3 |