| Competition | City | Date | Roles |
|---|
| 1 | Japan Junior Championships 2023 | Otsu | 2023-11-11 | Judge (Junior ladies) |
| 2 | Western Section Championships 2023 | Hiroshima | 2023-10-25 | Judge (Senior ladies, Junior men) |
| 3 | Western Section Championships 2021 | Fukuoa | 2021-11-04 | Judge (Senior ladies, Junior men) |
| 4 | Japan Novice Championships 2021 | Otsu, Shiga | 2021-10-24 | Judge (Advanced novice girls, Intermediate novice boys) |
| 5 | Japan Novice Championships 2019 | Nishitokyo | 2019-10-18 | Judge (Advanced novice boys, Intermediate novice girls) |
| 6 | Japan Novice Championships 2018 | Osaka | 2018-10-19 | Judge (Basic novice B boys, Basic novice B girls) |
| 7 | Western Section Championships 2017 | Fukuoka | 2017-11-02 | Judge (Senior men, Junior ladies) |
| 8 | Western Section Championships 2016 | Kyoto | 2016-10-28 | Judge (Senior ladies, Junior men) |
| 9 | Western Section Championships 2015 | Aichi | 2015-10-31 | Judge (Senior men, Junior ladies) |
| 10 | Shu-Shikoku-Kyushu Regional Championships 2015 | Okayama | 2015-10-01 | Judge (Junior ladies, Junior men, Advanced novice girls) |
| 11 | Japan Junior Championships 2014 | Niigata | 2014-11-22 | Judge (Junior ladies) |
| 12 | Western Section Championships 2014 | Fukuoka | 2014-10-31 | Judge (Senior ladies, Junior men) |
| 13 | Japan Novice Championships 2014 | Osaka | 2014-10-24 | Judge (Advanced novice boys, Advanced novice girls) |
| 14 | Japan Junior Championships 2013 | Nagoya | 2013-11-22 | Judge (Junior ladies) |
| 15 | Shu-Shikoku-Kyushu Regional Championships 2013 | Fukuoka | 2013-10-03 | Judge (Junior ladies, Advanced novice girls) |
| 16 | Western Section Championships 2012 | Fukuoka | 2012-11-01 | Judge (Senior ladies, Junior men) |
| 17 | Shu-Shikoku-Kyushu Regional Championships 2012 | Shimane | 2012-10-11 | Judge (Junior ladies, Basic novice B girls) |
| 18 | Western Section Championships 2011 | Kyoto | 2011-11-03 | Judge (Senior ladies, Junior men) |
| 19 | Shu-Shikoku-Kyushu Regional Championships 2011 | Okayama | 2011-09-30 | Judge (Junior ladies, Advanced novice boys, Basic novice B boys) |
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