| 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 | 2020/05/23 19:45 | Lucas Orsatti v Ricardo Kojima | W | 0-3 |
| Boom Cup | 2020/05/23 18:55 | Ricardo Kojima v Hiromi Yokoyama | W | 3-2 |
| Boom Cup | 2020/05/23 18:30 | Ito Henrique v Ricardo Kojima | W | 0-3 |
| Boom Cup | 2020/05/22 21:00 | Hiromi Yokoyama v Ricardo Kojima | W | 0-3 |
| Boom Cup | 2020/05/22 20:35 | Ricardo Kojima v Lucas Orsatti | W | 3-0 |
| Boom Cup | 2020/05/22 20:10 | Ito Henrique v Ricardo Kojima | W | 0-3 |
| Boom Cup | 2020/05/22 18:55 | Mauricio Goncalves v Ricardo Kojima | W | 1-3 |
| Boom Cup | 2020/05/22 18:30 | Ricardo Kojima v Akira Chikaraishi | W | 3-2 |
| Boom Cup | 2020/05/23 19:45 | Akira Chikaraishi v Tiago Cardoso | L | 0-3 |
| Boom Cup | 2020/05/23 19:20 | Akira Chikaraishi v Ito Henrique | W | 3-0 |
| Boom Cup | 2020/05/23 18:55 | Lucas Orsatti v Akira Chikaraishi | L | 3-2 |
| Boom Cup | 2020/05/22 21:00 | Akira Chikaraishi v Mauricio Goncalves | W | 3-0 |
| Boom Cup | 2020/05/22 20:35 | Ito Henrique v Akira Chikaraishi | W | 0-3 |
| Boom Cup | 2020/05/22 19:45 | Hiromi Yokoyama v Akira Chikaraishi | W | 0-3 |
| Boom Cup | 2020/05/22 19:20 | Akira Chikaraishi v Lucas Orsatti | W | 3-1 |
| Boom Cup | 2020/05/22 18:30 | Ricardo Kojima v Akira Chikaraishi | L | 3-2 |