| Challenger - Sao Paulo | 2022/06/12 01:20 | Hiromi Yokoyama v Roberto Tadashi Ishikawa | W | 0-3 |
| Challenger - Sao Paulo | 2022/05/22 00:00 | Roberto Tadashi Ishikawa v Hiromi Yokoyama | W | 3-0 |
| Challenger - Sao Paulo | 2022/05/19 02:40 | Hiromi Yokoyama v Roberto Tadashi Ishikawa | L | 3-2 |
| Challenger - Sao Paulo | 2022/05/13 22:00 | Hiromi Yokoyama v Roberto Tadashi Ishikawa | W | 1-3 |
| Challenger - Sao Paulo | 2022/04/17 00:00 | Hiromi Yokoyama v Roberto Tadashi Ishikawa | W | 1-3 |
| Challenger - Sao Paulo | 2022/04/15 01:40 | Hiromi Yokoyama v Roberto Tadashi Ishikawa | W | 2-3 |
| Challenger - Sao Paulo | 2022/04/07 22:20 | Roberto Tadashi Ishikawa v Hiromi Yokoyama | W | 3-1 |
| Challenger - Sao Paulo | 2022/04/06 22:20 | Roberto Tadashi Ishikawa v Hiromi Yokoyama | W | 3-1 |
| Challenger - Sao Paulo | 2022/07/01 23:20 | Roberto Tadashi Ishikawa v Luciano Martins Vieira Junior | W | 3-0 |
| Challenger - Sao Paulo | 2022/07/01 22:40 | Guilherme Mattos v Roberto Tadashi Ishikawa | L | 3-2 |
| Challenger - Sao Paulo | 2022/07/01 22:00 | Fabio Mizutani v Roberto Tadashi Ishikawa | L | 3-1 |
| Challenger - Sao Paulo | 2022/07/01 21:20 | Ricardo Martins De Brito v Roberto Tadashi Ishikawa | W | 0-3 |
| Challenger - Sao Paulo | 2022/06/18 02:20 | Roberto Tadashi Ishikawa v Jose Geneci Tavares Junior | W | 3-1 |
| Challenger - Sao Paulo | 2022/06/18 01:40 | Roberto Tadashi Ishikawa v Agnaldo Silva | W | 3-0 |
| Challenger - Sao Paulo | 2022/06/18 00:40 | Roberto Tadashi Ishikawa v Luciano Martins Vieira Junior | W | 3-0 |
| Challenger - Sao Paulo | 2022/06/18 00:00 | Roberto Tadashi Ishikawa v Fernando Santos | W | 3-0 |
| Challenger - Sao Paulo | 2022/07/01 23:20 | Hiromi Yokoyama v Ricardo Martins De Brito | W | 3-0 |
| Challenger - Sao Paulo | 2022/07/01 22:20 | Luciano Martins Vieira Junior v Hiromi Yokoyama | W | 1-3 |
| Challenger - Sao Paulo | 2022/07/01 21:40 | Alejandro Fernandez Junior v Hiromi Yokoyama | L | 3-0 |
| Challenger - Sao Paulo | 2022/07/01 21:00 | Fabio Mizutani v Hiromi Yokoyama | L | 3-0 |
| Challenger - Sao Paulo | 2022/07/01 02:00 | Everton Vianna v Hiromi Yokoyama | W | 2-3 |
| Challenger - Sao Paulo | 2022/07/01 01:20 | Hiromi Yokoyama v Rodrigo Procidonio Ruiz | W | 3-0 |
| Challenger - Sao Paulo | 2022/07/01 00:20 | Hiromi Yokoyama v Pedro Andrade | L | 2-3 |
| Challenger - Sao Paulo | 2022/06/30 23:40 | Andre Cruz v Hiromi Yokoyama | W | 0-3 |