| Competition | City | Date | Roles |
|---|
| 1 | Chu-Shikoku-Kyushu Regional Championships 2020 | Okayama | 2020-09-25 | Judge (Senior ladies, Junior ladies, Advanced novice boys) |
| 2 | Tohoku-Hokkaido Regional Championships 2019 | Hachinohe Aomori | 2019-09-20 | Judge (Senior ladies, Senior men, Junior men, Intermediate novice girls, Intermediate novice boys) |
| 3 | Tohoku-Hokkaido Regional Championships 2018 | Sapporo | 2018-09-21 | Judge (Junior ladies, Advanced novice girls, Advanced novice boys) |
| 4 | Shu-Shikoku-Kyushu Regional Championships 2017 | Fukuoka | 2017-10-06 | Judge (Senior ladies, Junior ladies, Advanced novice boys) |
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