| Challenger Sao Paulo | 2022/04/01 00:40 | Douglas Tomioka v Guilherme Mattos | L | 3-1 |
| Challenger Sao Paulo | 2022/04/08 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 | 2022/04/08 01:40 | Douglas Tomioka v Fabio Mizutani | W | 3-0 |
| Challenger Sao Paulo | 2022/04/08 01:00 | Roberto Tadashi Ishikawa v Douglas Tomioka | W | 1-3 |
| Challenger Sao Paulo | 2022/04/08 00:20 | Leandro Nogueira Carvalho v Douglas Tomioka | W | 2-3 |
| Challenger Sao Paulo | 2022/04/07 23:40 | Douglas Tomioka v Hiromi Yokoyama | W | 3-0 |
| Challenger Sao Paulo | 2022/04/07 23:20 | Alejandro Fernandez Junior v Douglas Tomioka | W | 1-3 |
| Challenger Sao Paulo | 2022/04/07 22:20 | Douglas Tomioka v Rogerio Capobianco | W | 3-0 |
| Challenger Sao Paulo | 2022/04/07 21:20 | Douglas Tomioka v Vitor Carlesse Martins | W | 3-1 |
| Challenger Sao Paulo | 2022/04/01 02:20 | Douglas Tomioka v Alan Santos | W | 3-0 |