| 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 | 2020/04/21 16:30 | Akira Chikaraishi v Ricardo Kojima | W | 0-3 |
| Boom Cup | 2020/05/11 15:30 | Ricardo Kojima v Tiago Cardoso | W | 3-0 |
| Boom Cup | 2020/05/11 14:00 | Avelino Neto v Ricardo Kojima | W | 1-3 |
| Boom Cup | 2020/05/11 13:30 | Ricardo Kojima v Leandro Pereira | W | 3-1 |
| Boom Cup | 2020/05/11 13:00 | Vitor Yamamoto v Ricardo Kojima | W | 0-3 |
| Boom Cup | 2020/05/11 12:30 | Ricardo Kojima v Lucas Kawahara | W | 3-0 |
| Boom Cup | 2020/05/08 16:30 | Alec Fudihara v Ricardo Kojima | W | 0-3 |
| Boom Cup | 2020/05/08 15:30 | Ricardo Kojima v Tiago Fudimori | W | 3-1 |
| Boom Cup | 2020/05/08 15:00 | Tiago Cardoso v Ricardo Kojima | W | 2-3 |
| Boom Cup | 2020/05/11 19:00 | Ito Henrique v Akira Chikaraishi | W | 0-3 |
| Boom Cup | 2020/05/11 18:00 | Tiago Fudimori v Akira Chikaraishi | W | 0-3 |
| Boom Cup | 2020/05/11 17:00 | Akira Chikaraishi v Lucas Orsatti | L | 2-3 |
| Boom Cup | 2020/05/11 16:30 | Mauricio Goncalves v Akira Chikaraishi | W | 0-3 |
| Boom Cup | 2020/05/11 15:30 | Akira Chikaraishi v Joao Paulo Trecco | W | 3-1 |
| Boom Cup | 2020/05/08 13:00 | Lucas Kawahara v Akira Chikaraishi | W | 0-3 |
| Boom Cup | 2020/05/08 12:30 | Joao Paulo Trecco v Akira Chikaraishi | W | 0-3 |
| Boom Cup | 2020/05/08 12:00 | Akira Chikaraishi v Rafael Franco | W | 3-0 |