| Challenger Sao Paulo | 2022/04/08 02:20 | Guilherme Mattos v Douglas Tomioka | L | 0-3 |
| Challenger Sao Paulo | 2022/04/01 00:40 | Douglas Tomioka v Guilherme Mattos | L | 3-1 |
| Challenger Sao Paulo | 2022/04/09 22:20 | Gustavo Jeremias Morais v Guilherme Mattos | L | 3-2 |
| Challenger Sao Paulo | 2022/04/09 21:40 | Heins Bendezu v Guilherme Mattos | W | 1-3 |
| Challenger Sao Paulo | 2022/04/09 21:00 | Alejandro Fernandez Junior v Guilherme Mattos | L | 3-1 |
| Challenger Sao Paulo | 2022/04/08 02:20 | Guilherme Mattos v Douglas Tomioka | L | 0-3 |
| 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 | 2022/04/09 22:40 | Douglas Tomioka v De Hong Jung | W | 3-0 |
| Challenger Sao Paulo | 2022/04/09 21:20 | Douglas Tomioka v Everton Vianna | W | 3-1 |
| Challenger Sao Paulo | 2022/04/08 02:20 | Guilherme Mattos v Douglas Tomioka | W | 0-3 |
| 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 |