| Challenger Sao Paulo | 2022/05/06 01:40 | Guilherme Mattos v Alejandro Fernandez Junior | W | 0-3 |
| Challenger Sao Paulo | 2022/05/04 22:00 | Alejandro Fernandez Junior v Guilherme Mattos | W | 3-1 |
| Challenger Sao Paulo | 2022/04/09 21:00 | Alejandro Fernandez Junior v Guilherme Mattos | W | 3-1 |
| Challenger Sao Paulo | 2022/04/07 21:20 | Guilherme Mattos v Alejandro Fernandez Junior | W | 1-3 |
| Challenger Sao Paulo | 2022/04/06 21:20 | Guilherme Mattos v Alejandro Fernandez Junior | W | 0-3 |
| Challenger Sao Paulo | 2022/04/01 02:40 | Alejandro Fernandez Junior v Guilherme Mattos | W | 3-0 |
| Challenger Sao Paulo | 2022/03/30 21:20 | Guilherme Mattos v Alejandro Fernandez Junior | W | 0-3 |
| Challenger Sao Paulo | 2022/03/26 02:40 | Guilherme Mattos v Alejandro Fernandez Junior | W | 1-3 |
| Challenger Sao Paulo | 2022/05/11 22:20 | De Hong Jung v Alejandro Fernandez Junior | W | 0-3 |
| Challenger Sao Paulo | 2022/05/11 21:40 | Jonas Silva v Alejandro Fernandez Junior | W | 1-3 |
| Challenger Sao Paulo | 2022/05/11 21:00 | Fabio Mizutani v Alejandro Fernandez Junior | L | 3-2 |
| Challenger Sao Paulo | 2022/05/08 02:20 | Alejandro Fernandez Junior v Everton Vianna | W | 3-2 |
| Challenger Sao Paulo | 2022/05/08 01:40 | Roberto Tadashi Ishikawa v Alejandro Fernandez Junior | L | 3-2 |
| Challenger Sao Paulo | 2022/05/08 01:00 | Leandro Nogueira Carvalho v Alejandro Fernandez Junior | L | 3-0 |
| Challenger Sao Paulo | 2022/05/08 00:20 | Alejandro Fernandez Junior v Lennon Uehara | W | 3-0 |
| Challenger Sao Paulo | 2022/05/08 00:00 | Douglas Tomioka v Alejandro Fernandez Junior | L | 3-0 |
| Challenger Sao Paulo | 2022/05/11 22:40 | Guilherme Mattos v Hiromi Yokoyama | W | 3-0 |
| Challenger Sao Paulo | 2022/05/11 22:00 | Guilherme Mattos v Marco Cruz | W | 3-1 |
| Challenger Sao Paulo | 2022/05/11 21:20 | Guilherme Mattos v Leandro Nogueira Carvalho | W | 3-1 |
| Challenger Sao Paulo | 2022/05/06 02:20 | Guilherme Mattos v Rodrigo Procidonio Ruiz | W | 3-0 |
| Challenger Sao Paulo | 2022/05/06 01:40 | Guilherme Mattos v Alejandro Fernandez Junior | L | 0-3 |
| Challenger Sao Paulo | 2022/05/06 00:40 | Guilherme Mattos v Douglas Tomioka | L | 0-3 |
| Challenger Sao Paulo | 2022/05/06 00:00 | Guilherme Mattos v Lennon Uehara | L | 2-3 |
| Challenger Sao Paulo | 2022/05/05 23:20 | Diogo Silva v Guilherme Mattos | L | 3-0 |