| Boom Cup | 05/19 21:25 | - | Kawahara, Lucas v Yamamoto, Vitor | L | 3-1 | |
| Boom Cup | 05/19 20:35 | - | Yamamoto, Vitor v Kojima, Ricardo | L | 0-3 | |
| Boom Cup | 05/19 20:10 | - | Yamamoto, Vitor v Fudimori, Tiago | L | 0-3 | |
| Boom Cup | 05/19 19:20 | - | Franco, Rafael v Yamamoto, Vitor | L | 3-0 | |
| Boom Cup | 05/19 18:30 | - | Yamamoto, Vitor v Chikaraishi, Akira | L | 0-3 | |
| Boom Cup | 05/19 00:20 | - | Kojima, Ricardo v Yamamoto, Vitor | L | 3-1 | |
| Boom Cup | 05/18 23:55 | - | Yamamoto, Vitor v Fudimori, Tiago | L | 2-3 | |
| Boom Cup | 05/18 23:05 | - | Dias, Jonathan v Yamamoto, Vitor | L | 3-1 | |
| Boom Cup | 05/18 22:15 | - | Pereira, Leandro v Yamamoto, Vitor | W | 2-3 | |
| Boom Cup | 05/18 21:50 | - | Yamamoto, Vitor v Matsuo, Alexandre | W | 3-0 | |
| Boom Cup | 05/15 15:30 | - | Yamamoto, Vitor v Franco, Rafael | W | 3-1 | |
| Boom Cup | 05/15 14:30 | - | Pereira, Leandro v Yamamoto, Vitor | L | 3-0 | |
| Boom Cup | 05/15 13:30 | - | Yamamoto, Vitor v Dias, Jonathan | L | 0-3 | |
| Boom Cup | 05/15 13:00 | - | Henrique, Ito v Yamamoto, Vitor | W | 0-3 | |
| Boom Cup | 05/15 12:30 | - | Yamamoto, Vitor v Goncalves, Maurico | L | 2-3 | |
| Boom Cup | 05/14 15:30 | - | Goncalves, Maurico v Yamamoto, Vitor | L | 3-2 | |
| Boom Cup | 05/14 14:30 | - | Yamamoto, Vitor v Fudimori, Tiago | L | 0-3 | |
| Boom Cup | 05/14 14:00 | - | Yamamoto, Vitor v Dias, Jonathan | L | 0-3 | |
| Boom Cup | 05/14 13:00 | - | Fudihara, Alec v Yamamoto, Vitor | L | 3-1 | |
| Boom Cup | 05/14 12:00 | - | Yamamoto, Vitor v Trecco, Joao Paulo | L | 0-3 | |
| Boom Cup | 05/13 20:30 | - | Yamamoto, Vitor v Orsatti, Lucas | L | 2-3 | |
| Boom Cup | 05/13 20:00 | - | Goncalves, Maurico v Yamamoto, Vitor | L | 3-0 | |
| Boom Cup | 05/13 19:30 | - | Yamamoto, Vitor v Fudihara, Alec | L | 0-3 | |
| Boom Cup | 05/12 20:30 | - | Yamamoto, Vitor v Kojima, Ricardo | L | 0-3 | |
| Boom Cup | 05/12 20:00 | - | Chikaraishi, Akira v Yamamoto, Vitor | L | 3-0 | |
| Boom Cup | 05/12 19:30 | - | Yamamoto, Vitor v Dias, Jonathan | L | 0-3 | |
| Boom Cup | 05/11 15:00 | - | Yamamoto, Vitor v Neto, Avelino | L | 2-3 | |
| Boom Cup | 05/11 14:30 | - | Pereira, Leandro v Yamamoto, Vitor | L | 3-2 | |
| Boom Cup | 05/11 14:00 | - | Kawahara, Lucas v Yamamoto, Vitor | L | 3-0 | |
| Boom Cup | 05/11 13:00 | - | Yamamoto, Vitor v Kojima, Ricardo | L | 0-3 |