| Competition | City | Date | Roles |
|---|
| 1 | Kanto Regional Championships 2023 | Yokohama | 2023-10-06 | Judge (Senior men, Junior ladies) |
| 2 | Japan Novice Championships 2022 | Sapporo | 2022-10-21 | Judge (Advanced novice boys, Intermediate novice girls) |
| 3 | Chubu Regional Championships 2021 | Nagoya | 2021-09-24 | Judge (Senior men, Senior ladies, Junior men, Intermediate novice boys, Intermediate novice girls) |
| 4 | Tohoku-Hokkaido Regional Championships 2020 | Niigata | 2020-10-10 | Judge (Senior men, Senior ladies, Junior men, Advanced novice boys, Advanced novice girls, Intermediate novice girls) |
| 5 | Chubu Regional Championships 2020 | Nagoya | 2020-09-25 | Judge (Senior ladies, Senior men, Junior men, Advanced novice girls) |
| 6 | Japan Novice Championships 2019 | Nishitokyo | 2019-10-18 | Judge (Advanced novice boys, Intermediate novice girls) |
| 7 | Japan Novice Championships 2018 | Osaka | 2018-10-19 | Judge (Advanced novice girls, Advanced novice boys) |
| 8 | Tohoku-Hokkaido Regional Championships 2017 | Niigata | 2017-09-21 | Judge (Junior ladies, Advanced novice girls, Advanced novice boys) |
| 9 | Shu-Shikoku-Kyushu Regional Championships 2016 | Okayama | 2016-09-23 | Judge (Senior ladies, Junior ladies, Advanced novice boys) |
| 10 | Kanto Regional Championships 2015 | Chiba | 2015-10-08 | Judge (Junior ladies, Advanced novice boys, Basic novice B girls) |
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