| Challenger Sao Paulo | 2022/05/13 22:00 | Hiromi Yokoyama v Roberto Tadashi Ishikawa | L | 1-3 |
| Challenger Sao Paulo | 2022/04/17 00:00 | Hiromi Yokoyama v Roberto Tadashi Ishikawa | L | 1-3 |
| Challenger Sao Paulo | 2022/04/15 01:40 | Hiromi Yokoyama v Roberto Tadashi Ishikawa | L | 2-3 |
| Challenger Sao Paulo | 2022/04/07 22:20 | Roberto Tadashi Ishikawa v Hiromi Yokoyama | L | 3-1 |
| Challenger Sao Paulo | 2022/04/06 22:20 | Roberto Tadashi Ishikawa v Hiromi Yokoyama | L | 3-1 |
| Challenger Sao Paulo | 2022/05/19 00:40 | Alejandro Fernandez Junior v Hiromi Yokoyama | L | 3-1 |
| Challenger Sao Paulo | 2022/05/19 00:00 | Allan Sarmento v Hiromi Yokoyama | L | 3-0 |
| Challenger Sao Paulo | 2022/05/18 23:20 | Hiromi Yokoyama v Rogerio Capobianco | W | 3-0 |
| Challenger Sao Paulo | 2022/05/18 22:20 | Rodrigo Procidonio Ruiz v Hiromi Yokoyama | L | 3-0 |
| Challenger Sao Paulo | 2022/05/15 02:00 | Agnaldo Silva v Hiromi Yokoyama | W | 0-3 |
| Challenger Sao Paulo | 2022/05/15 01:20 | Hiromi Yokoyama v Fernando Santos | L | 0-3 |
| Challenger Sao Paulo | 2022/05/15 00:20 | Hiromi Yokoyama v Renato Rezende | L | 1-3 |
| Challenger Sao Paulo | 2022/05/14 23:40 | Felipe Monteiro v Hiromi Yokoyama | W | 0-3 |
| Challenger Sao Paulo | 2022/05/19 01:20 | Allan Sarmento v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/05/19 00:40 | Rogerio Capobianco v Roberto Tadashi Ishikawa | W | 0-3 |
| Challenger Sao Paulo | 2022/05/18 23:40 | Rodrigo Procidonio Ruiz v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/05/18 23:00 | Fabio Mizutani v Roberto Tadashi Ishikawa | L | 3-2 |
| Challenger Sao Paulo | 2022/05/18 22:20 | Leandro Nogueira Carvalho v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/05/18 21:40 | Marco Cruz v Roberto Tadashi Ishikawa | W | 1-3 |
| Challenger Sao Paulo | 2022/05/14 02:20 | Fernando Santos v Roberto Tadashi Ishikawa | W | 0-3 |
| Challenger Sao Paulo | 2022/05/14 02:00 | Roberto Tadashi Ishikawa v Jocimar Silva | W | 3-0 |