| Challenger Sao Paulo | 2022/05/27 22:00 | Ricardo Mendes v Julio Nogueira | W | 0-3 |
| Challenger Sao Paulo | 2022/05/27 21:20 | Julio Cesar v Julio Nogueira | W | 2-3 |
| Challenger Sao Paulo | 2022/05/27 22:00 | Sandro Motta v Roberto Tadashi Ishikawa | W | 0-3 |
| Challenger Sao Paulo | 2022/05/26 02:20 | Fabio Mizutani v Roberto Tadashi Ishikawa | L | 3-1 |
| Challenger Sao Paulo | 2022/05/26 02:00 | Roberto Tadashi Ishikawa v Lennon Uehara | L | 2-3 |
| Challenger Sao Paulo | 2022/05/26 01:20 | Roberto Tadashi Ishikawa v Douglas Tomioka | L | 0-3 |
| Challenger Sao Paulo | 2022/05/25 23:20 | Roberto Tadashi Ishikawa v Allan Sarmento | L | 0-3 |
| Challenger Sao Paulo | 2022/05/25 22:40 | Marco Cruz v Roberto Tadashi Ishikawa | W | 1-3 |
| Challenger Sao Paulo | 2022/05/25 22:00 | Rodrigo Procidonio Ruiz v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/05/25 21:20 | Alejandro Fernandez Junior v Roberto Tadashi Ishikawa | L | 3-0 |