| Challenger Sao Paulo | 2022/05/13 21:20 | Jefferson Silva v Roberto Tadashi Ishikawa | W | 1-3 |
| Challenger Sao Paulo | 2022/05/07 02:20 | Jefferson Silva v Roberto Tadashi Ishikawa | W | 2-3 |
| Challenger Sao Paulo | 2022/05/20 23:20 | Roberto Tadashi Ishikawa v Marco Cruz | W | 3-0 |
| Challenger Sao Paulo | 2022/05/20 22:40 | Vinicius Girotto v Roberto Tadashi Ishikawa | W | 0-3 |
| Challenger Sao Paulo | 2022/05/20 22:00 | Luciano Martins Vieira Junior v Roberto Tadashi Ishikawa | W | 1-3 |
| Challenger Sao Paulo | 2022/05/20 21:20 | Geraldo Iqueuti v Roberto Tadashi Ishikawa | W | 0-3 |
| Challenger Sao Paulo | 2022/05/19 02:40 | Hiromi Yokoyama v Roberto Tadashi Ishikawa | L | 3-2 |
| 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 | 2022/05/20 23:20 | Jefferson Silva v Geraldo Iqueuti | W | 3-0 |
| Challenger Sao Paulo | 2022/05/20 22:20 | Marco Cruz v Jefferson Silva | W | 0-3 |
| Challenger Sao Paulo | 2022/05/20 21:40 | Julio Silva v Jefferson Silva | W | 2-3 |
| Challenger Sao Paulo | 2022/05/20 21:00 | Luciano Martins Vieira Junior v Jefferson Silva | W | 0-3 |
| Challenger Sao Paulo | 2022/05/14 02:20 | Jefferson Silva v Antonio Neto | W | 3-1 |
| Challenger Sao Paulo | 2022/05/14 01:40 | Jefferson Silva v Hiromi Yokoyama | L | 0-3 |
| Challenger Sao Paulo | 2022/05/14 00:40 | Jefferson Silva v Geraldo Iqueuti | W | 3-0 |
| Challenger Sao Paulo | 2022/05/14 00:00 | Jefferson Silva v Fernando Santos | W | 3-1 |