| Challenger Sao Paulo | 2022/05/28 02:20 | Fernando Santos v Roberto Tadashi Ishikawa | W | 0-3 |
| Challenger Sao Paulo | 2022/05/28 02:00 | Roberto Tadashi Ishikawa v Geraldo Iqueuti | W | 3-1 |
| Challenger Sao Paulo | 2022/05/28 01:20 | Roberto Tadashi Ishikawa v Antonio Neto | W | 3-0 |
| Challenger Sao Paulo | 2022/05/28 00:00 | Roberto Tadashi Ishikawa v Marco Cruz | W | 3-2 |
| Challenger Sao Paulo | 2022/05/27 23:20 | Roberto Tadashi Ishikawa v Julio Cesar | W | 3-1 |
| Challenger Sao Paulo | 2022/05/27 22:40 | Julio Nogueira v Roberto Tadashi Ishikawa | W | 0-3 |
| 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 |