| Challenger Sao Paulo | 2022/04/07 00:40 | Guilherme Mattos v Hiromi Yokoyama | W | 3-0 |
| Challenger Sao Paulo | 2022/03/31 22:20 | Hiromi Yokoyama v Guilherme Mattos | W | 0-3 |
| Challenger Sao Paulo | 2022/03/30 23:20 | Hiromi Yokoyama v Guilherme Mattos | W | 0-3 |
| Challenger Sao Paulo | 2022/04/08 00:00 | Guilherme Mattos v Fabio Mizutani | W | 3-1 |
| Challenger Sao Paulo | 2022/04/07 23:20 | Rogerio Capobianco v Guilherme Mattos | W | 1-3 |
| Challenger Sao Paulo | 2022/04/07 22:40 | Guilherme Mattos v Leandro Nogueira Carvalho | W | 3-2 |
| Challenger Sao Paulo | 2022/04/07 22:00 | Guilherme Mattos v Vitor Carlesse Martins | W | 3-0 |
| Challenger Sao Paulo | 2022/04/07 21:20 | Guilherme Mattos v Alejandro Fernandez Junior | L | 1-3 |
| Challenger Sao Paulo | 2022/04/07 02:20 | Guilherme Mattos v De Hong Jung | W | 3-0 |
| Challenger Sao Paulo | 2022/04/07 01:40 | Guilherme Mattos v Roberto Tadashi Ishikawa | W | 3-1 |
| Challenger Sao Paulo | 2022/04/07 00:40 | Guilherme Mattos v Hiromi Yokoyama | W | 3-0 |
| Challenger Sao Paulo | 2022/04/07 23:40 | Douglas Tomioka v Hiromi Yokoyama | L | 3-0 |
| Challenger Sao Paulo | 2022/04/07 23:00 | Fabio Mizutani v Hiromi Yokoyama | L | 3-2 |
| Challenger Sao Paulo | 2022/04/07 22:20 | Roberto Tadashi Ishikawa v Hiromi Yokoyama | L | 3-1 |
| Challenger Sao Paulo | 2022/04/07 21:40 | Leandro Nogueira Carvalho v Hiromi Yokoyama | L | 3-0 |
| Challenger Sao Paulo | 2022/04/07 02:40 | Andre Cruz v Hiromi Yokoyama | W | 0-3 |
| Challenger Sao Paulo | 2022/04/07 02:00 | Marco Cruz v Hiromi Yokoyama | L | 3-0 |
| Challenger Sao Paulo | 2022/04/07 01:20 | Alejandro Fernandez Junior v Hiromi Yokoyama | L | 3-0 |
| Challenger Sao Paulo | 2022/04/07 00:40 | Guilherme Mattos v Hiromi Yokoyama | L | 3-0 |