| Challenger Sao Paulo | 2022/05/13 00:00 | Roberto Tadashi Ishikawa v Newton Takaki | L | 2-3 |
| Challenger Sao Paulo | 2022/04/29 01:00 | Roberto Tadashi Ishikawa v Newton Takaki | L | 2-3 |
| Challenger Sao Paulo | 2022/04/21 01:00 | Roberto Tadashi Ishikawa v Newton Takaki | L | 1-3 |
| Challenger Sao Paulo | 2022/04/13 21:00 | Roberto Tadashi Ishikawa v Newton Takaki | W | 3-1 |
| Challenger Sao Paulo | 2022/06/02 22:40 | Wagner Danilo v Roberto Tadashi Ishikawa | W | 1-3 |
| Challenger Sao Paulo | 2022/06/02 22:00 | Roberto Domingues de Andrade v Roberto Tadashi Ishikawa | W | 1-3 |
| Challenger Sao Paulo | 2022/06/02 21:20 | Alejandro Fernandez Junior v Roberto Tadashi Ishikawa | L | 3-1 |
| Challenger Sao Paulo | 2022/05/29 02:40 | Allan Sarmento v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/05/29 01:40 | Heins Bendezu v Roberto Tadashi Ishikawa | W | 2-3 |
| Challenger Sao Paulo | 2022/05/29 01:00 | Roberto Tadashi Ishikawa v Alejandro Fernandez Junior | L | 0-3 |
| Challenger Sao Paulo | 2022/05/29 00:20 | Fabio Mizutani v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/05/28 23:00 | Jonas Silva v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/06/02 22:20 | Newton Takaki v Rogerio Capobianco | W | 3-0 |
| Challenger Sao Paulo | 2022/06/02 21:20 | Newton Takaki v Wagner Danilo | W | 3-2 |
| Challenger Sao Paulo | 2022/05/27 02:40 | Newton Takaki v Rodrigo Procidonio Ruiz | L | 1-3 |
| Challenger Sao Paulo | 2022/05/27 02:00 | Newton Takaki v Douglas Tomioka | L | 1-3 |
| Challenger Sao Paulo | 2022/05/27 01:00 | Newton Takaki v Fabio Mizutani | W | 3-1 |
| Challenger Sao Paulo | 2022/05/27 00:40 | Newton Takaki v Jonas Silva | W | 3-2 |
| Challenger Sao Paulo | 2022/05/26 23:40 | Newton Takaki v Lennon Uehara | L | 1-3 |
| Challenger Sao Paulo | 2022/05/26 22:40 | Newton Takaki v Everton Pontes | L | 0-3 |