| Challenger Sao Paulo | 2022/05/04 23:40 | Guilherme Mattos v Leandro Nogueira Carvalho | W | 3-1 |
| Challenger Sao Paulo | 2022/05/04 22:40 | Guilherme Mattos v Rodrigo Procidonio Ruiz | L | 0-3 |
| Challenger Sao Paulo | 2022/05/04 22:00 | Alejandro Fernandez Junior v Guilherme Mattos | L | 3-1 |
| Challenger Sao Paulo | 2022/05/04 21:20 | Diogo Silva v Guilherme Mattos | L | 3-0 |
| Challenger Sao Paulo | 2022/04/10 02:40 | Guilherme Mattos v Lennon Uehara | W | 3-0 |
| Challenger Sao Paulo | 2022/04/10 01:20 | De Hong Jung v Guilherme Mattos | W | 1-3 |
| Challenger Sao Paulo | 2022/04/10 00:40 | Helder Faria Junior v Guilherme Mattos | L | 3-0 |
| Challenger Sao Paulo | 2022/04/10 00:00 | Everton Vianna v Guilherme Mattos | W | 0-3 |
| Challenger Sao Paulo | 2022/05/05 00:00 | Rodrigo Procidonio Ruiz v Guilherme Rezende | L | 3-0 |
| Challenger Sao Paulo | 2022/05/04 23:20 | Guilherme Rezende v Alejandro Fernandez Junior | L | 1-3 |
| Challenger Sao Paulo | 2022/05/04 22:20 | Diogo Silva v Guilherme Rezende | L | 3-0 |
| Challenger Sao Paulo | 2022/05/04 21:40 | Lennon Uehara v Guilherme Rezende | W | 2-3 |
| Challenger Sao Paulo | 2022/05/04 21:00 | Jonas Silva v Guilherme Rezende | W | 1-3 |