| 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 |
| Boom Cup | 2020/05/03 19:00 | Vitor Yamamoto v Ricardo Kojima | W | 0-3 |
| Boom Cup | 2020/05/03 18:30 | Ricardo Kojima v Mauricio Goncalves | W | 3-0 |
| Boom Cup | 2020/05/03 18:00 | Hiromi Yokoyama v Ricardo Kojima | W | 0-3 |
| Boom Cup | 2020/05/03 17:30 | Ricardo Kojima v Rafael Franco | W | 3-0 |
| Boom Cup | 2020/05/03 16:30 | Ricardo Kojima v Jonathan Dias | L | 2-3 |
| Boom Cup | 2020/05/03 15:00 | Ricardo Kojima v Alec Fudihara | W | 3-1 |
| Boom Cup | 2020/05/02 16:00 | Ricardo Kojima v Rafael Franco | W | 3-0 |
| Boom Cup | 2020/05/02 15:30 | Vitor Yamamoto v Ricardo Kojima | W | 0-3 |
| Boom Cup | 2020/05/03 19:30 | Akira Chikaraishi v Rafael Franco | W | 3-0 |
| Boom Cup | 2020/05/03 18:30 | Akira Chikaraishi v Vitor Yamamoto | W | 3-0 |
| Boom Cup | 2020/05/03 17:30 | Mauricio Goncalves v Akira Chikaraishi | W | 0-3 |
| Boom Cup | 2020/05/03 17:00 | Akira Chikaraishi v Hiromi Yokoyama | W | 3-0 |
| Boom Cup | 2020/05/02 20:30 | Akira Chikaraishi v Hiromi Yokoyama | W | 3-0 |
| Boom Cup | 2020/05/02 16:30 | Akira Chikaraishi v Tiago Cardoso | W | 3-1 |
| Boom Cup | 2020/05/02 15:00 | Akira Chikaraishi v Ricardo Kojima | W | 3-1 |
| Boom Cup | 2020/05/02 14:30 | Akira Chikaraishi v Joao Paulo Trecco | W | 3-1 |