| Competition | City | Date | Roles |
|---|
| 1 | Kanto Regional Championships 2020 | Hitachinaka City | 2020-10-02 | Judge (Senior ladies, Senior men, Junior men, Advanced novice boys, Intermediate novice girls, Intermediate novice boys) |
| 2 | Kinki Regional Championships 2019 | Shiga | 2019-10-03 | Judge (Senior ladies, Senior men, Junior men, Intermediate novice boys, Intermediate novice girls) |
| 3 | Shu-Shikoku-Kyushu Regional Championships 2016 | Okayama | 2016-09-23 | Judge (Senior ladies, Junior ladies, Advanced novice boys) |
| 4 | Tohoku-Hokkaido Regional Championships 2014 | Hokkaido | 2014-10-02 | Judge (Senior men, Senior ladies, Junior men, Advanced novice girls) |
| 5 | Kanto Regional Championships 2011 | Gunma | 2011-10-14 | Judge (Senior ladies, Senior men, Junior men, Advanced novice boys, Advanced novice girls, Basic novice B boys) |
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