| Competition | City | Date | Roles |
|---|
| 1 | Tohoku-Hokkaido Regional Championships 2023 | Niigata | 2023-09-29 | Judge (Senior men, Senior ladies, Junior men, Advanced novice girls, Advanced novice boys, Intermediate novice girls) |
| 2 | Kanto Regional Championships 2021 | Chiba | 2021-09-30 | Judge (Senior men, Junior ladies, Intermediate novice boys) |
| 3 | Kanto Regional Championships 2020 | Hitachinaka City | 2020-10-02 | Judge (Junior ladies, Advanced novice girls) |
| 4 | Tohoku-Hokkaido Regional Championships 2019 | Hachinohe Aomori | 2019-09-20 | Judge (Junior ladies, Advanced novice girls, Advanced novice boys) |
| 5 | Kanto Regional Championships 2018 | Nikko | 2018-09-27 | Judge (Junior ladies, Advanced novice boys, Advanced novice girls) |
| 6 | Tohoku-Hokkaido Regional Championships 2017 | Niigata | 2017-09-21 | Judge (Junior ladies, Advanced novice girls, Advanced novice boys) |
| 7 | Kanto Regional Championships 2016 | Ibaraki | 2016-09-30 | Judge (Junior ladies, Advanced novice boys, Basic novice B girls) |
| 8 | Tohoku-Hokkaido Regional Championships 2015 | Misawa | 2015-10-01 | Judge (Senior ladies, Senior men, Junior men, Advanced novice girls) |
| 9 | Kanto Regional Championships 2014 | Nagano | 2014-09-25 | Judge (Senior ladies, Senior men, Junior men, Advanced novice girls, Advanced novice boys, Basic novice B boys) |
| 10 | Kanto Regional Championships 2013 | Saitama | 2013-10-11 | Judge (Senior men, Senior ladies, Junior men, Advanced novice boys, Advanced novice girls, Basic novice B boys) |
| 11 | Kanto Regional Championships 2012 | Yamanashi | 2012-09-27 | Judge (Senior ladies, Senior men, Junior men, Advanced novice boys, Advanced novice girls, Basic novice B boys) |
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