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