| 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 | 2020/05/21 23:55 | Ricardo Kojima v Mauricio Goncalves | W | 3-2 |
| Boom Cup | 2020/05/21 23:30 | Alexandre Matsuo v Ricardo Kojima | W | 0-3 |
| Boom Cup | 2020/05/21 23:05 | Vitor Yamamoto v Ricardo Kojima | W | 1-3 |
| Boom Cup | 2020/05/21 22:15 | Ricardo Kojima v Hiromi Yokoyama | W | 3-0 |
| Boom Cup | 2020/05/21 21:25 | Lucas Orsatti v Ricardo Kojima | W | 2-3 |
| Boom Cup | 2020/05/20 21:00 | Ricardo Kojima v Lucas Orsatti | W | 3-2 |
| Boom Cup | 2020/05/20 20:10 | Danilo Umehara v Ricardo Kojima | W | 0-3 |
| Boom Cup | 2020/05/20 19:45 | Ricardo Kojima v Jonathan Dias | W | 3-2 |
| Boom Cup | 2020/05/21 00:20 | Akira Chikaraishi v Lucas Kawahara | W | 3-0 |
| Boom Cup | 2020/05/20 23:30 | Alexandre Matsuo v Akira Chikaraishi | W | 0-3 |
| Boom Cup | 2020/05/20 23:05 | Akira Chikaraishi v Leandro Pereira | W | 3-0 |
| Boom Cup | 2020/05/20 22:40 | Akira Chikaraishi v Ito Henrique | W | 3-0 |
| Boom Cup | 2020/05/20 21:50 | Vitor Yamamoto v Akira Chikaraishi | W | 0-3 |
| Boom Cup | 2020/05/19 21:00 | Ricardo Kojima v Akira Chikaraishi | L | 3-1 |
| Boom Cup | 2020/05/19 20:10 | Akira Chikaraishi v Rafael Franco | W | 3-0 |
| Boom Cup | 2020/05/19 19:45 | Lucas Kawahara v Akira Chikaraishi | W | 0-3 |