| Competition | City | Date | Roles |
|---|
| 1 | Tohoku-Hokkaido Regional Championships 2017 | Niigata | 2017-09-21 | Judge (Junior ladies, Advanced novice girls, Advanced novice boys) |
| 2 | Tohoku-Hokkaido Regional Championships 2015 | Misawa | 2015-10-01 | Judge (Junior ladies, Advanced novice boys, Basic novice B girls, Basic novice B boys) |
| 3 | Kanto Regional Championships 2014 | Nagano | 2014-09-25 | Judge (Senior men, Senior ladies, Junior men, Advanced novice girls, Advanced novice boys, Basic novice B boys) |
| 4 | Tohoku-Hokkaido Regional Championships 2012 | Hokkaido | 2012-10-12 | Judge (Senior men, Senior ladies, Junior men, Advanced novice boys, Basic novice B girls) |
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