| Challenger Sao Paulo | 2022/04/20 21:00 | Roberto Tadashi Ishikawa v De Hong Jung | L | 3-2 |
| Challenger Sao Paulo | 2022/04/14 02:40 | De Hong Jung v Roberto Tadashi Ishikawa | W | 3-1 |
| Challenger Sao Paulo | 2022/04/07 01:00 | Roberto Tadashi Ishikawa v De Hong Jung | W | 0-3 |
| Challenger Sao Paulo | 2022/03/23 21:20 | Roberto Tadashi Ishikawa v De Hong Jung | W | 0-3 |
| Challenger Sao Paulo | 2022/04/27 21:20 | De Hong Jung v Jonas Silva | L | 2-3 |
| Challenger Sao Paulo | 2022/04/21 02:40 | De Hong Jung v Rodrigo Procidonio Ruiz | L | 1-3 |
| Challenger Sao Paulo | 2022/04/21 01:20 | Carlos Alberto Torres Ferraz v De Hong Jung | L | 3-2 |
| Challenger Sao Paulo | 2022/04/21 00:40 | Fabio Mizutani v De Hong Jung | W | 2-3 |
| Challenger Sao Paulo | 2022/04/21 00:00 | Leandro Nogueira Carvalho v De Hong Jung | L | 3-2 |
| Challenger Sao Paulo | 2022/04/20 23:20 | De Hong Jung v Douglas Tomioka | L | 0-3 |
| Challenger Sao Paulo | 2022/04/20 22:20 | Newton Takaki v De Hong Jung | W | 0-3 |
| Challenger Sao Paulo | 2022/04/20 21:40 | Alejandro Fernandez Junior v De Hong Jung | L | 3-2 |
| Challenger Sao Paulo | 2022/04/27 21:40 | Fabio Mizutani v Roberto Tadashi Ishikawa | L | 3-1 |
| Challenger Sao Paulo | 2022/04/27 21:00 | Marco Cruz v Roberto Tadashi Ishikawa | W | 1-3 |
| Challenger Sao Paulo | 2022/04/21 02:40 | Fabio Mizutani v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/04/21 01:40 | Douglas Tomioka v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/04/21 01:00 | Roberto Tadashi Ishikawa v Newton Takaki | L | 1-3 |
| Challenger Sao Paulo | 2022/04/21 00:20 | Alejandro Fernandez Junior v Roberto Tadashi Ishikawa | L | 3-0 |
| Challenger Sao Paulo | 2022/04/20 23:00 | Carlos Alberto Torres Ferraz v Roberto Tadashi Ishikawa | W | 2-3 |
| Challenger Sao Paulo | 2022/04/20 22:20 | Roberto Tadashi Ishikawa v Rodrigo Procidonio Ruiz | L | 0-3 |