| Challenger Sao Paulo | 2022/06/11 23:00 | Yokoyama, Hiromi v Mizutani, Fabio | W | 0-3 |
| Challenger Sao Paulo | 2022/06/02 01:40 | Yokoyama, Hiromi v Mizutani, Fabio | W | 1-3 |
| Challenger Sao Paulo | 2022/05/20 02:20 | Mizutani, Fabio v Yokoyama, Hiromi | W | 3-0 |
| Challenger Sao Paulo | 2022/05/14 21:00 | Mizutani, Fabio v Yokoyama, Hiromi | W | 3-0 |
| Challenger Sao Paulo | 2022/05/11 23:00 | Yokoyama, Hiromi v Mizutani, Fabio | W | 2-3 |
| Challenger Sao Paulo | 2022/04/17 02:20 | Yokoyama, Hiromi v Mizutani, Fabio | W | 2-3 |
| Challenger Sao Paulo | 2022/04/15 00:00 | Yokoyama, Hiromi v Mizutani, Fabio | W | 0-3 |
| Challenger Sao Paulo | 2022/04/07 23:00 | Mizutani, Fabio v Yokoyama, Hiromi | W | 3-2 |
| Challenger Sao Paulo | 2022/06/16 02:40 | Marco Cruz v Mizutani, Fabio | W | 1-3 |
| Challenger Sao Paulo | 2022/06/16 01:40 | Newton Takaki v Mizutani, Fabio | W | 0-3 |
| Challenger Sao Paulo | 2022/06/16 01:00 | Mizutani, Fabio v Roberto Tadashi Ishikawa | W | 3-1 |
| Challenger Sao Paulo | 2022/06/16 00:20 | Alejandro Fernandez Junior v Mizutani, Fabio | L | 3-2 |
| Challenger Sao Paulo | 2022/06/15 23:00 | Rogerio Capobianco v Mizutani, Fabio | W | 0-3 |
| Challenger Sao Paulo | 2022/06/15 22:20 | Mizutani, Fabio v Douglas Tomioka | L | 2-3 |
| Challenger Sao Paulo | 2022/06/15 22:00 | Mizutani, Fabio v Guilherme Mattos | W | 3-0 |
| Challenger Sao Paulo | 2022/06/15 21:00 | Mizutani, Fabio v Andre Cruz | W | 3-0 |
| Challenger Sao Paulo | 2022/06/12 02:00 | Kayque Valois v Yokoyama, Hiromi | L | 3-0 |
| Challenger Sao Paulo | 2022/06/12 01:20 | Yokoyama, Hiromi v Roberto Tadashi Ishikawa | L | 0-3 |
| Challenger Sao Paulo | 2022/06/12 00:20 | Yokoyama, Hiromi v Marco Cruz | L | 2-3 |
| Challenger Sao Paulo | 2022/06/11 23:40 | Everton Vianna v Yokoyama, Hiromi | W | 1-3 |
| Challenger Sao Paulo | 2022/06/11 23:00 | Yokoyama, Hiromi v Mizutani, Fabio | L | 0-3 |
| Challenger Sao Paulo | 2022/06/11 22:40 | Alejandro Fernandez Junior v Yokoyama, Hiromi | L | 3-0 |
| Challenger Sao Paulo | 2022/06/11 21:40 | Yokoyama, Hiromi v De Hong Jung | L | 0-3 |
| Challenger Sao Paulo | 2022/06/11 21:00 | Leonardo Arata v Yokoyama, Hiromi | L | 3-0 |