| Challenger Sao Paulo | 08/03 23:20 | - | Lennon Uehara v Roberto Tadashi Ishikawa | L | 3-1 | |
| Challenger Sao Paulo | 08/03 22:40 | - | Roberto Tadashi Ishikawa v Guilherme Mattos | L | 1-3 | |
| Challenger Sao Paulo | 08/03 22:00 | - | Roberto Tadashi Ishikawa v Fabio Mizutani | L | 1-3 | |
| Challenger Sao Paulo | 08/03 21:20 | - | Roberto Tadashi Ishikawa v Alejandro Fernandez Junior | L | 0-3 | |
| Challenger Sao Paulo | 07/28 02:20 | - | Roberto Domingues de Andrade v Roberto Tadashi Ishikawa | W | 0-3 | |
| Challenger Sao Paulo | 07/28 01:40 | - | Roberto Tadashi Ishikawa v Lennon Uehara | L | 0-3 | |
| Challenger Sao Paulo | 07/28 01:00 | - | Fabio Mizutani v Roberto Tadashi Ishikawa | L | 3-0 | |
| Challenger Sao Paulo | 07/28 00:20 | - | Marco Cruz v Roberto Tadashi Ishikawa | W | 0-3 | |
| Challenger Sao Paulo | 07/27 23:40 | - | Roberto Tadashi Ishikawa v Douglas Tomioka | L | 0-3 | |
| Challenger Sao Paulo | 07/27 23:20 | - | Alejandro Fernandez Junior v Roberto Tadashi Ishikawa | L | 3-0 | |
| Challenger Sao Paulo | 07/27 22:20 | - | Roberto Tadashi Ishikawa v Rogerio Capobianco | W | 3-0 | |
| Challenger Sao Paulo | 07/27 21:20 | - | Roberto Tadashi Ishikawa v Everton Vianna | L | 1-3 | |
| Challenger Sao Paulo | 07/24 02:40 | - | Roberto Tadashi Ishikawa v Fabio Mizutani | W | 3-2 | |
| Challenger Sao Paulo | 07/24 02:00 | - | Roberto Tadashi Ishikawa v Rodolfo de Paula Vieira | L | 2-3 | |
| Challenger Sao Paulo | 07/24 01:00 | - | Roberto Tadashi Ishikawa v Douglas Tomioka | L | 0-3 | |
| Challenger Sao Paulo | 07/24 00:40 | - | Roberto Tadashi Ishikawa v Everton Vianna | L | 0-3 | |
| Challenger Sao Paulo | 07/23 23:40 | - | Roberto Tadashi Ishikawa v Allan Sarmento | L | 0-3 | |
| Challenger Sao Paulo | 07/23 22:40 | - | Roberto Tadashi Ishikawa v Pedro Andrade | W | 3-2 | |
| Challenger Sao Paulo | 07/23 22:00 | - | Luciano Pinto v Roberto Tadashi Ishikawa | L | 3-0 | |
| Challenger Sao Paulo | 07/23 21:20 | - | Alejandro Fernandez Junior v Roberto Tadashi Ishikawa | L | 3-0 | |
| Challenger Sao Paulo | 07/21 02:20 | - | Roberto Tadashi Ishikawa v Alejandro Fernandez Junior | L | 0-3 | |
| Challenger Sao Paulo | 07/21 01:40 | - | Newton Takaki v Roberto Tadashi Ishikawa | L | 3-1 | |
| Challenger Sao Paulo | 07/21 01:00 | - | Fabio Mizutani v Roberto Tadashi Ishikawa | L | 3-0 | |
| Challenger Sao Paulo | 07/21 00:20 | - | Roberto Tadashi Ishikawa v Marco Cruz | W | 3-1 | |
| Challenger Sao Paulo | 07/21 00:00 | - | Everton Vianna v Roberto Tadashi Ishikawa | L | 3-1 | |
| Challenger Sao Paulo | 07/20 23:00 | - | Roberto Tadashi Ishikawa v Douglas Tomioka | L | 0-3 | |
| Challenger Sao Paulo | 07/20 21:40 | - | Roberto Tadashi Ishikawa v Allan Sarmento | L | 0-3 | |
| Challenger Sao Paulo | 07/20 21:00 | - | Roberto Tadashi Ishikawa v Guilherme Mattos | L | 0-3 | |
| Challenger Sao Paulo | 07/17 02:40 | - | Allan Sarmento v Roberto Tadashi Ishikawa | L | 3-0 | |
| Challenger Sao Paulo | 07/17 02:00 | - | Everton Vianna v Roberto Tadashi Ishikawa | L | 3-0 |