| 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 | 2020/06/10 21:25 | Ricardo Kojima v Lucas Orsatti | W | 3-1 |
| Boom Cup | 2020/06/10 20:35 | Hiromi Yokoyama v Ricardo Kojima | W | 0-3 |
| Boom Cup | 2020/06/10 19:45 | Ricardo Kojima v Danilo Umehara | W | 3-0 |
| Boom Cup | 2020/06/10 19:20 | Ito Henrique v Ricardo Kojima | W | 0-3 |
| Boom Cup | 2020/06/10 18:55 | Ricardo Kojima v Tiago Cardoso | W | 3-2 |
| Boom Cup | 2020/06/10 00:20 | Hiromi Yokoyama v Ricardo Kojima | W | 0-3 |
| Boom Cup | 2020/06/09 23:55 | Ricardo Kojima v Lucas Orsatti | W | 3-0 |
| Boom Cup | 2020/06/09 23:05 | Leandro Pereira v Ricardo Kojima | W | 1-3 |
| Boom Cup | 2020/06/12 00:20 | Rafael Franco v Akira Chikaraishi | W | 1-3 |
| Boom Cup | 2020/06/11 23:30 | Akira Chikaraishi v Alexandre Matsuo | W | 3-0 |
| Boom Cup | 2020/06/11 23:05 | Akira Chikaraishi v Ito Henrique | W | 3-0 |
| Boom Cup | 2020/06/11 22:40 | Mauricio Goncalves v Akira Chikaraishi | W | 0-3 |
| Boom Cup | 2020/06/11 21:25 | Akira Chikaraishi v Rodrigo Horiuchi | W | 3-1 |
| Boom Cup | 2020/06/09 21:25 | Akira Chikaraishi v Jonathan Dias | W | 3-1 |
| Boom Cup | 2020/06/09 20:35 | Lucas Kawahara v Akira Chikaraishi | W | 0-3 |
| Boom Cup | 2020/06/09 19:45 | Akira Chikaraishi v Mauricio Goncalves | W | 3-0 |