| 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 | 2022/05/21 23:20 | Roberto Tadashi Ishikawa v Marco Cruz | W | 3-0 |
| Challenger Sao Paulo | 2022/05/21 22:40 | Everton Pontes v Roberto Tadashi Ishikawa | W | 2-3 |
| Challenger Sao Paulo | 2022/05/21 22:00 | Jonas Da Silva v Roberto Tadashi Ishikawa | W | 0-3 |
| Challenger Sao Paulo | 2022/05/21 21:20 | Jefferson Silva v Roberto Tadashi Ishikawa | W | 1-3 |
| Challenger Sao Paulo | 2022/05/21 02:20 | Julio Silva v Roberto Tadashi Ishikawa | L | 3-1 |
| Challenger Sao Paulo | 2022/05/21 02:00 | Roberto Tadashi Ishikawa v Antonio Neto | W | 3-0 |
| Challenger Sao Paulo | 2022/05/21 01:20 | Roberto Tadashi Ishikawa v Enrico Barnabe Umeki | W | 3-1 |
| Challenger Sao Paulo | 2022/05/21 00:00 | Roberto Tadashi Ishikawa v Jefferson Silva | L | 1-3 |
| Challenger Sao Paulo | 2022/05/21 23:20 | Hiromi Yokoyama v Jefferson Silva | L | 2-3 |
| Challenger Sao Paulo | 2022/05/21 22:20 | Marco Cruz v Hiromi Yokoyama | W | 2-3 |
| Challenger Sao Paulo | 2022/05/21 21:40 | Alejandro Fernandez Junior v Hiromi Yokoyama | L | 3-0 |
| Challenger Sao Paulo | 2022/05/21 21:00 | Jonas Da Silva v Hiromi Yokoyama | L | 3-2 |
| Challenger Sao Paulo | 2022/05/20 02:20 | Fabio Mizutani v Hiromi Yokoyama | L | 3-0 |
| Challenger Sao Paulo | 2022/05/20 02:00 | Hiromi Yokoyama v Sandro Motta | L | 1-3 |
| Challenger Sao Paulo | 2022/05/20 01:20 | Hiromi Yokoyama v Vitor Carlesse Martins | W | 3-0 |
| Challenger Sao Paulo | 2022/05/20 00:00 | Hiromi Yokoyama v Jeferson Bento | L | 0-3 |