| Challenger Sao Paulo | 2022/04/06 22:20 | Roberto Tadashi Ishikawa v Hiromi Yokoyama | W | 3-1 |
| Challenger Sao Paulo | 2022/04/07 22:00 | Roberto Tadashi Ishikawa v Alejandro Fernandez Junior | L | 0-3 |
| Challenger Sao Paulo | 2022/04/07 21:00 | Roberto Tadashi Ishikawa v Rogerio Capobianco | W | 3-0 |
| Challenger Sao Paulo | 2022/04/07 02:40 | Marco Cruz v Roberto Tadashi Ishikawa | W | 1-3 |
| Challenger Sao Paulo | 2022/04/07 01:40 | Guilherme Mattos v Roberto Tadashi Ishikawa | L | 3-1 |
| Challenger Sao Paulo | 2022/04/07 01:00 | Roberto Tadashi Ishikawa v De Hong Jung | L | 0-3 |
| Challenger Sao Paulo | 2022/04/07 00:20 | Fabio Mizutani v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/04/06 23:00 | Carlos Alberto Torres Ferraz v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/04/06 22:20 | Roberto Tadashi Ishikawa v Hiromi Yokoyama | W | 3-1 |
| Challenger Sao Paulo | 2022/04/07 21:40 | Leandro Nogueira Carvalho v Hiromi Yokoyama | L | 3-0 |
| Challenger Sao Paulo | 2022/04/07 02:40 | Andre Cruz v Hiromi Yokoyama | W | 0-3 |
| Challenger Sao Paulo | 2022/04/07 02:00 | Marco Cruz v Hiromi Yokoyama | L | 3-0 |
| Challenger Sao Paulo | 2022/04/07 01:20 | Alejandro Fernandez Junior v Hiromi Yokoyama | L | 3-0 |
| Challenger Sao Paulo | 2022/04/07 00:40 | Guilherme Mattos v Hiromi Yokoyama | L | 3-0 |
| Challenger Sao Paulo | 2022/04/06 23:40 | De Hong Jung v Hiromi Yokoyama | L | 3-0 |
| Challenger Sao Paulo | 2022/04/06 23:00 | Fabio Mizutani v Hiromi Yokoyama | L | 3-0 |
| Challenger Sao Paulo | 2022/04/06 22:20 | Roberto Tadashi Ishikawa v Hiromi Yokoyama | L | 3-1 |