| Competition | City | Date | Roles |
|---|
| 1 | Chubu Regional Championships 2023 | Nagoya | 2023-09-22 | Judge (Senior ladies, Senior men, Junior men, Intermediate novice girls) |
| 2 | Tokyo Regional Championships 2022 | Nishitokyo | 2022-09-30 | Judge (Senior ladies, Junior men, Advanced novice girls, Intermediate novice boys) |
| 3 | Tokyo Regional Championships 2021 | Nishitokyo | 2021-10-07 | Judge (Senior ladies, Junior men, Advanced novice girls, Intermediate novice boys) |
| 4 | Chubu Regional Championships 2021 | Nagoya | 2021-09-24 | Judge (Junior ladies, Advanced novice boys, Advanced novice girls) |
| 5 | Chubu Regional Championships 2020 | Nagoya | 2020-09-25 | Judge (Senior ladies, Senior men, Junior men, Advanced novice girls) |
| 6 | Kanto Regional Championships 2019 | Yamanashi | 2019-10-03 | Judge (Junior ladies, Advanced novice girls, Advanced novice boys) |
| 7 | Eastern Section Championships 2017 | Yamanashi | 2017-10-26 | Judge (Senior men, Junior ladies) |
| 8 | Chubu Regional Championships 2017 | Aichi | 2017-09-29 | Judge (Senior men, Senior ladies, Junior men, Advanced novice boys, Basic novice B girls, Basic novice B boys) |
| 9 | Chubu Regional Championships 2016 | Aichi | 2016-09-30 | Judge (Senior men, Senior ladies, Junior men, Advanced novice boys, Basic novice B boys, Basic novice B girls) |
| 10 | Chubu Regional Championships 2015 | Aichi | 2015-09-25 | Judge (Senior ladies, Senior men, Junior men, Advanced novice girls) |
| 11 | Japan Novice Championships 2014 | Osaka | 2014-10-24 | Judge (Advanced novice girls, Advanced novice boys) |
| 12 | Japan Novice Championships 2013 | Ibaraki | 2013-10-25 | Judge (Advanced novice girls, Advanced novice boys) |
| 13 | Chubu Regional Championships 2013 | Aichi | 2013-09-27 | Judge (Senior ladies, Senior men, Junior men, Advanced novice boys, Advanced novice girls, Basic novice B boys) |
| 14 | Japan Novice Championships 2012 | Kyoto | 2012-10-26 | Judge (Basic novice B boys, Basic novice B girls) |
| 15 | Chubu Regional Championships 2012 | Aichi | 2012-09-28 | Judge (Senior ladies, Junior men, Advanced novice girls, Advanced novice boys, Basic novice B boys) |
| 16 | Chubu Regional Championships 2011 | Aichi | 2011-09-30 | Judge (Senior ladies, Senior men, Junior men, Advanced novice girls) |
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