| Challenger Sao Paulo | 2022/04/14 02:40 | De Hong Jung v Roberto Tadashi Ishikawa | L | 3-1 |
| Challenger Sao Paulo | 2022/04/07 01:00 | Roberto Tadashi Ishikawa v De Hong Jung | L | 0-3 |
| Challenger Sao Paulo | 2022/03/23 21:20 | Roberto Tadashi Ishikawa v De Hong Jung | L | 0-3 |