| Boom Cup | 2020/06/04 20:10 | Akira Chikaraishi v Ricardo Kojima | L | 1-3 |
| Boom Cup | 2020/05/30 21:00 | Ricardo Kojima v Akira Chikaraishi | L | 3-2 |
| Boom Cup | 2020/05/28 23:30 | Ricardo Kojima v Akira Chikaraishi | L | 3-1 |
| Boom Cup | 2020/05/26 21:50 | Ricardo Kojima v Akira Chikaraishi | L | 3-0 |
| Boom Cup | 2020/05/23 20:10 | Ricardo Kojima v Akira Chikaraishi | L | 3-0 |
| Boom Cup | 2020/05/22 18:30 | Ricardo Kojima v Akira Chikaraishi | L | 3-2 |
| Boom Cup | 2020/05/19 21:00 | Ricardo Kojima v Akira Chikaraishi | L | 3-1 |
| Boom Cup | 2020/05/15 19:00 | Akira Chikaraishi v Ricardo Kojima | L | 1-3 |
| Boom Cup | 2020/06/08 20:35 | Lucas Kawahara v Akira Chikaraishi | W | 0-3 |
| Boom Cup | 2020/06/08 19:45 | Rafael Franco v Akira Chikaraishi | W | 0-3 |
| Boom Cup | 2020/06/08 19:20 | Akira Chikaraishi v Tiago Cardoso | W | 3-2 |
| Boom Cup | 2020/06/08 18:30 | Vitor Yamamoto v Akira Chikaraishi | W | 0-3 |
| Boom Cup | 2020/06/06 21:00 | Akira Chikaraishi v Hiromi Yokoyama | W | 3-0 |
| Boom Cup | 2020/06/06 20:10 | Rodrigo Horiuchi v Akira Chikaraishi | W | 0-3 |
| Boom Cup | 2020/06/06 19:45 | Akira Chikaraishi v Mauricio Goncalves | W | 3-0 |
| Boom Cup | 2020/06/06 19:20 | Akira Chikaraishi v Lucas Orsatti | W | 3-0 |
| Boom Cup | 2020/06/08 20:10 | Ricardo Kojima v Rafael Franco | W | 3-0 |
| Boom Cup | 2020/06/08 19:45 | Tiago Cardoso v Ricardo Kojima | W | 2-3 |
| Boom Cup | 2020/06/08 18:55 | Ricardo Kojima v Vitor Yamamoto | W | 3-0 |
| Boom Cup | 2020/06/08 18:30 | Lucas Kawahara v Ricardo Kojima | W | 0-3 |
| Boom Cup | 2020/06/06 23:55 | Vitor Yamamoto v Ricardo Kojima | W | 0-3 |
| Boom Cup | 2020/06/06 23:30 | Ricardo Kojima v Danilo Umehara | W | 3-0 |
| Boom Cup | 2020/06/06 22:40 | Lucas Kawahara v Ricardo Kojima | W | 0-3 |
| Boom Cup | 2020/06/06 22:15 | Ricardo Kojima v Alexandre Matsuo | W | 3-0 |