| Challenger Sao Paulo | 2022/06/19 00:00 | Guilherme Mattos v Hiromi Yokoyama | L | 3-0 |
| Challenger Sao Paulo | 2022/05/11 22:40 | Guilherme Mattos v Hiromi Yokoyama | L | 3-0 |
| Challenger Sao Paulo | 2022/04/08 00:40 | Guilherme Mattos v Hiromi Yokoyama | L | 3-0 |
| Challenger Sao Paulo | 2022/04/07 00:40 | Guilherme Mattos v Hiromi Yokoyama | L | 3-0 |
| Challenger Sao Paulo | 2022/03/31 22:20 | Hiromi Yokoyama v Guilherme Mattos | L | 0-3 |
| Challenger Sao Paulo | 2022/03/30 23:20 | Hiromi Yokoyama v Guilherme Mattos | L | 0-3 |