| Competition | City | Date | Roles |
|---|
| 1 | Eastern Section Championships 2023 | Hachinohe | 2023-11-02 | Judge (Senior ladies, Junior men) |
| 2 | Tohoku-Hokkaido Regional Championships 2023 | Niigata | 2023-09-29 | Judge (Junior ladies, Intermediate novice boys) |
| 3 | Chubu Regional Championships 2022 | Nagoya | 2022-09-23 | Judge (Senior men, Senior ladies, Junior men, Intermediate novice girls) |
| 4 | Tohoku-Hokkaido Regional Championships 2018 | Sapporo | 2018-09-21 | Judge (Senior men, Senior ladies, Junior men, Basic novice B boys, Basic novice B girls) |
| 5 | Kanto Regional Championships 2017 | Kanagawa | 2017-09-28 | Judge (Junior ladies, Advanced novice boys, Basic novice B girls) |
| 6 | Tohoku-Hokkaido Regional Championships 2016 | Hachinohe | 2016-10-08 | Judge (Senior men, Senior ladies, Junior men, Basic novice B girls, Basic novice B boys) |
| 7 | Tohoku-Hokkaido Regional Championships 2015 | Misawa | 2015-10-01 | Judge (Junior ladies, Advanced novice boys, Basic novice B boys, Basic novice B girls) |
| 8 | Tohoku-Hokkaido Regional Championships 2014 | Hokkaido | 2014-10-02 | Judge (Junior ladies, Advanced novice boys, Basic novice B boys, Basic novice B girls) |
| 9 | Tohoku-Hokkaido Regional Championships 2012 | Hokkaido | 2012-10-12 | Judge (Junior ladies, Advanced novice girls) |
| 10 | Tohoku-Hokkaido Regional Championships 2011 | Aomori | 2011-10-12 | Judge (Junior ladies, Advanced novice boys, Basic novice B boys, Basic novice B girls) |
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