| Challenger Sao Paulo | 2022/05/08 02:20 | Douglas Tomioka v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/04/28 22:20 | Roberto Tadashi Ishikawa v Douglas Tomioka | L | 0-3 |
| Challenger Sao Paulo | 2022/04/21 01:40 | Douglas Tomioka v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/04/17 00:20 | Roberto Tadashi Ishikawa v Douglas Tomioka | L | 1-3 |
| Challenger Sao Paulo | 2022/04/08 01:00 | Roberto Tadashi Ishikawa v Douglas Tomioka | L | 1-3 |
| Challenger Sao Paulo | 2022/05/13 00:00 | Roberto Tadashi Ishikawa v Newton Takaki | L | 2-3 |
| Challenger Sao Paulo | 2022/05/12 23:20 | Roberto Tadashi Ishikawa v Silnei Yuta | L | 2-3 |
| Challenger Sao Paulo | 2022/05/12 22:40 | Guilherme Mattos v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/05/12 22:00 | Alejandro Fernandez Junior v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/05/12 21:20 | Pedro Andrade v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/05/08 02:20 | Douglas Tomioka v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/05/08 01:40 | Roberto Tadashi Ishikawa v Alejandro Fernandez Junior | W | 3-2 |
| Challenger Sao Paulo | 2022/05/08 01:00 | Lennon Uehara v Roberto Tadashi Ishikawa | L | 3-2 |
| Challenger Sao Paulo | 2022/05/13 00:40 | Pedro Andrade v Douglas Tomioka | W | 0-3 |
| Challenger Sao Paulo | 2022/05/12 23:40 | Silnei Yuta v Douglas Tomioka | L | 3-0 |
| Challenger Sao Paulo | 2022/05/12 23:00 | Vitor Carlesse Martins v Douglas Tomioka | W | 0-3 |
| Challenger Sao Paulo | 2022/05/12 22:20 | Alejandro Fernandez Junior v Douglas Tomioka | L | 3-2 |
| Challenger Sao Paulo | 2022/05/12 21:40 | Marcio Sasaki v Douglas Tomioka | W | 0-3 |
| Challenger Sao Paulo | 2022/05/12 02:40 | Alejandro Fernandez Junior v Douglas Tomioka | L | 3-2 |
| Challenger Sao Paulo | 2022/05/12 02:00 | Marco Cruz v Douglas Tomioka | W | 1-3 |
| Challenger Sao Paulo | 2022/05/12 01:20 | Leandro Nogueira Carvalho v Douglas Tomioka | W | 0-3 |