| Challenger Sao Paulo | 2022/08/11 22:00 | Douglas Tomioka v Roberto Tadashi Ishikawa | L | 3-1 |
| Challenger Sao Paulo | 2022/08/07 01:00 | Roberto Tadashi Ishikawa v Douglas Tomioka | L | 0-3 |
| Challenger Sao Paulo | 2022/08/04 00:40 | Roberto Tadashi Ishikawa v Douglas Tomioka | L | 0-3 |
| Challenger Sao Paulo | 2022/07/27 23:40 | Roberto Tadashi Ishikawa v Douglas Tomioka | L | 0-3 |
| Challenger Sao Paulo | 2022/07/24 01:00 | Roberto Tadashi Ishikawa v Douglas Tomioka | L | 0-3 |
| Challenger Sao Paulo | 2022/07/20 23:00 | Roberto Tadashi Ishikawa v Douglas Tomioka | L | 0-3 |
| Challenger Sao Paulo | 2022/07/10 01:00 | Roberto Tadashi Ishikawa v Douglas Tomioka | L | 0-3 |
| Challenger Sao Paulo | 2022/07/07 21:40 | Roberto Tadashi Ishikawa v Douglas Tomioka | L | 0-3 |
| Challenger Sao Paulo | 2022/08/18 01:00 | Roberto Tadashi Ishikawa v Everton Vianna | L | 1-3 |
| Challenger Sao Paulo | 2022/08/18 00:40 | Roberto Tadashi Ishikawa v Pedro Andrade | L | 0-3 |
| Challenger Sao Paulo | 2022/08/17 23:40 | Roberto Tadashi Ishikawa v Lennon Uehara | W | 3-2 |
| Challenger Sao Paulo | 2022/08/17 22:40 | Roberto Tadashi Ishikawa v Alejandro Fernandez Junior | L | 1-3 |
| Challenger Sao Paulo | 2022/08/17 22:00 | Newton Takaki v Roberto Tadashi Ishikawa | W | 1-3 |
| Challenger Sao Paulo | 2022/08/17 21:20 | Fabio Mizutani v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/08/12 02:40 | Roberto Tadashi Ishikawa v Pedro Andrade | W | 3-1 |
| Challenger Sao Paulo | 2022/08/12 02:00 | Roberto Tadashi Ishikawa v Wagner Danilo | W | 3-0 |
| Challenger Sao Paulo | 2022/08/18 01:20 | Alejandro Fernandez Junior v Douglas Tomioka | L | 3-0 |
| Challenger Sao Paulo | 2022/08/18 00:40 | Newton Takaki v Douglas Tomioka | W | 0-3 |
| Challenger Sao Paulo | 2022/08/17 23:40 | Fabio Mizutani v Douglas Tomioka | W | 0-3 |
| Challenger Sao Paulo | 2022/08/17 23:00 | Everton Vianna v Douglas Tomioka | W | 1-3 |
| Challenger Sao Paulo | 2022/08/17 22:20 | Carlos Alberto Torres Ferraz v Douglas Tomioka | W | 0-3 |
| Challenger Sao Paulo | 2022/08/17 21:40 | Lennon Uehara v Douglas Tomioka | W | 1-3 |
| Challenger Sao Paulo | 2022/08/14 02:20 | Douglas Tomioka v Ettore Palauro | W | 3-1 |
| Challenger Sao Paulo | 2022/08/14 01:40 | Douglas Tomioka v Carlos Alberto Torres Ferraz | W | 3-0 |