| 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 | 2022/07/02 01:20 | Roberto Tadashi Ishikawa v Douglas Tomioka | L | 0-3 |
| Challenger Sao Paulo | 2022/06/15 23:40 | Roberto Tadashi Ishikawa v Douglas Tomioka | L | 0-3 |
| Challenger Sao Paulo | 2022/06/08 23:40 | Roberto Tadashi Ishikawa v Douglas Tomioka | L | 0-3 |
| Challenger Sao Paulo | 2022/08/04 00:00 | Roberto Tadashi Ishikawa v Daniel Lacerda | W | 3-0 |
| Challenger Sao Paulo | 2022/08/03 23:20 | Lennon Uehara v Roberto Tadashi Ishikawa | L | 3-1 |
| Challenger Sao Paulo | 2022/08/03 22:40 | Roberto Tadashi Ishikawa v Guilherme Mattos | L | 1-3 |
| Challenger Sao Paulo | 2022/08/03 22:00 | Roberto Tadashi Ishikawa v Fabio Mizutani | L | 1-3 |
| Challenger Sao Paulo | 2022/08/03 21:20 | Roberto Tadashi Ishikawa v Alejandro Fernandez Junior | L | 0-3 |
| Challenger Sao Paulo | 2022/07/28 02:20 | Roberto Domingues de Andrade v Roberto Tadashi Ishikawa | W | 0-3 |
| Challenger Sao Paulo | 2022/07/28 01:40 | Roberto Tadashi Ishikawa v Lennon Uehara | L | 0-3 |
| Challenger Sao Paulo | 2022/07/28 01:00 | Fabio Mizutani v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/08/03 23:40 | Everton Vianna v Douglas Tomioka | W | 1-3 |
| Challenger Sao Paulo | 2022/08/03 23:00 | Daniel Lacerda v Douglas Tomioka | W | 0-3 |
| Challenger Sao Paulo | 2022/08/03 22:20 | Carlos Alberto Torres Ferraz v Douglas Tomioka | W | 0-3 |
| Challenger Sao Paulo | 2022/08/03 21:40 | Guilherme Mattos v Douglas Tomioka | W | 2-3 |
| Challenger Sao Paulo | 2022/07/31 02:20 | Douglas Tomioka v Fernando Santos | W | 3-0 |
| Challenger Sao Paulo | 2022/07/31 01:40 | Pedro Andrade v Douglas Tomioka | W | 0-3 |
| Challenger Sao Paulo | 2022/07/31 01:00 | Roberto Domingues de Andrade v Douglas Tomioka | W | 0-3 |
| Challenger Sao Paulo | 2022/07/31 00:20 | Douglas Tomioka v Everton Vianna | W | 3-1 |