| Competition | City | Date | Roles |
|---|
| 1 | Japan Championships 2023 | Nagano | 2023-12-20 | Judge (Senior ladies) |
| 2 | Western Section Championships 2023 | Hiroshima | 2023-10-25 | Judge (Senior men, Junior ladies) |
| 3 | Kinki Regional Championships 2023 | Otsu | 2023-09-29 | Judge (Senior men, Junior ladies, Intermediate novice girls) |
| 4 | Japan Championships 2022 | Kadoma | 2022-12-22 | Judge (Senior ladies) |
| 5 | Japan Junior Championships 2022 | Ibaraki | 2022-11-25 | Judge (Junior ladies, Junior pairs) |
| 6 | Kinki Regional Championships 2022 | Amagasaki | 2022-10-08 | Judge (Senior ladies, Junior men, Advanced novice boys, Intermediate novice boys, Intermediate novice girls) |
| 7 | Japan Championships 2021 | Saitama | 2021-12-22 | Judge (Senior men) |
| 8 | Western Section Championships 2021 | Fukuoa | 2021-11-04 | Judge (Senior ladies, Junior men) |
| 9 | Japan Championships 2020 | Nagano | 2020-12-24 | Judge (Senior men) |
| 10 | Kinki Regional Championships 2020 | Osaka | 2020-10-02 | Judge (Senior ladies, Junior men, Advanced novice boys, Intermediate novice girls, Intermediate novice boys) |
| 11 | Japan Championships 2019 | Tokyo | 2019-12-18 | Judge (Senior ladies) |
| 12 | Kinki Regional Championships 2019 | Shiga | 2019-10-03 | Judge (Senior ladies, Senior men, Junior men, Intermediate novice boys, Intermediate novice girls) |
| 13 | Japan Junior Championships 2018 | Fukuoka | 2018-11-23 | Judge (Junior men) |
| 14 | Kinki Regional Championships 2018 | Osaka | 2018-10-05 | Judge (Junior ladies, Advanced novice girls, Advanced novice boys) |
| 15 | Japan Junior Championships 2017 | Gunma | 2017-11-24 | Judge (Junior ladies) |
| 16 | Japan Junior Championships 2016 | Sapporo | 2016-11-18 | Judge (Junior ladies) |
| 17 | Kinki Regional Championships 2016 | Osaka | 2016-10-08 | Judge (Senior ladies, Senior men, Junior men, Advanced novice boys, Basic novice B boys) |
| 18 | Japan Junior Championships 2014 | Niigata | 2014-11-22 | Judge (Junior ladies) |
| 19 | Japan Junior Championships 2013 | Nagoya | 2013-11-22 | Judge (Junior ladies) |
| 20 | Kinki Regional Championships 2013 | Osaka | 2013-09-26 | Judge (Junior ladies, Advanced novice boys, Advanced novice girls, Basic novice B boys) |
| 21 | Japan Junior Championships 2012 | Nishitōkyō, Tokyo | 2012-11-17 | Judge (Junior men) |
| 22 | Kinki Regional Championships 2012 | Shiga | 2012-10-05 | Judge (Senior ladies, Junior men, Advanced novice boys, Basic novice B girls, Basic novice B boys) |
| 23 | Western Section Championships 2011 | Kyoto | 2011-11-03 | Judge (Senior ladies, Junior men) |
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