| Challenger Sao Paulo | 2022/06/19 00:00 | Guilherme Mattos v Hiromi Yokoyama | W | 3-0 |
| Challenger Sao Paulo | 2022/06/18 23:20 | Guilherme Mattos v Ricardo Martins De Brito | W | 3-1 |
| Challenger Sao Paulo | 2022/06/18 22:40 | Marcelo Phaiffer v Guilherme Mattos | 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 | 2022/06/19 00:40 | Douglas Tomioka v Mauricio Teodoro | L | 3-0 |
| Challenger Sao Paulo | 2022/06/18 23:40 | Ricardo Martins De Brito v Mauricio Teodoro | L | 3-0 |
| Challenger Sao Paulo | 2022/06/18 23:00 | Alejandro Fernandez Junior v Mauricio Teodoro | L | 3-0 |
| Challenger Sao Paulo | 2022/06/18 22:20 | Fabio Mizutani v Mauricio Teodoro | L | 3-0 |
| Challenger Sao Paulo | 2022/06/18 21:40 | Waldir Forner Junior v Mauricio Teodoro | L | 3-0 |