| Challenger Sao Paulo | 2022/06/18 22:00 | Douglas Tomioka v Marcelo Phaiffer | L | 3-1 |
| Challenger Sao Paulo | 2022/06/18 21:20 | Ricardo Martins De Brito v Marcelo Phaiffer | W | 0-3 |
| Challenger Sao Paulo | 2022/06/18 22:00 | Fabio Mizutani v Guilherme Mattos | W | 1-3 |
| Challenger Sao Paulo | 2022/06/18 21:20 | Douglas Tomioka v Guilherme Mattos | W | 1-3 |
| Challenger Sao Paulo | 2022/06/16 02:20 | Alejandro Fernandez Junior v Guilherme Mattos | L | 3-1 |
| Challenger Sao Paulo | 2022/06/16 02:00 | Guilherme Mattos v Rogerio Capobianco | W | 3-0 |
| Challenger Sao Paulo | 2022/06/16 01:20 | Guilherme Mattos v Douglas Tomioka | L | 1-3 |
| Challenger Sao Paulo | 2022/06/16 00:00 | Guilherme Mattos v Andre Cruz | W | 3-0 |
| Challenger Sao Paulo | 2022/06/15 23:20 | Guilherme Mattos v Roberto Tadashi Ishikawa | W | 3-1 |
| Challenger Sao Paulo | 2022/06/15 22:40 | Marco Cruz v Guilherme Mattos | W | 1-3 |