| 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 ladies, Junior men) |
| 3 | Japan Championships 2022 | Kadoma | 2022-12-22 | Judge (Senior ladies) |
| 4 | Western Section Championships 2022 | Kyoto | 2022-10-27 | Judge (Senior men, Junior ladies) |
| 5 | Japan Junior Championships 2021 | Nagoya | 2021-11-19 | Judge (Junior ladies) |
| 6 | Chu-Shikoku-Kyushu Regional Championships 2021 | Fukuoka | 2021-09-23 | Judge (Senior men, Junior men, Advanced novice girls, Intermediate novice boys, Intermediate novice girls) |
| 7 | Japan Championships 2020 | Nagano | 2020-12-24 | Judge (Senior ladies) |
| 8 | Eastern Section Ice Dance Championships 2020 | Kyoto | 2020-10-30 | Judge (Senior ice dance, Junior ice dance) |
| 9 | Western Section Championships 2020 | Kyoto | 2020-10-30 | Judge (Senior men, Senior ice dance 2, Junior ladies, Junior ice dance 2) |
| 10 | Chu-Shikoku-Kyushu Regional Championships 2020 | Okayama | 2020-09-25 | Judge (Senior ladies, Junior ladies, Advanced novice boys) |
| 11 | Japan Championships 2019 | Tokyo | 2019-12-18 | Judge (Senior ladies) |
| 12 | Chu-Shikoku-Kyushu Regional Championships 2019 | Fukuoka | 2019-09-26 | Judge (Senior men, Junior men, Advanced novice girls, Intermediate novice boys, Intermediate novice girls) |
| 13 | Japan Junior Championships 2018 | Fukuoka | 2018-11-23 | Judge (Junior men) |
| 14 | Western Section Championships 2018 | Aichi-ken | 2018-11-01 | Judge (Senior men, Junior ladies) |
| 15 | Western Section Championships 2017 | Fukuoka | 2017-11-02 | Judge (Senior men, Junior ladies) |
| 16 | Japan Junior Championships 2016 | Sapporo | 2016-11-18 | Judge (Junior men) |
| 17 | Japan Junior Championships 2015 | Ibaraki | 2015-11-21 | Judge (Junior men) |
| 18 | Shu-Shikoku-Kyushu Regional Championships 2015 | Okayama | 2015-10-01 | Referee (Junior ladies, Junior men, Advanced novice girls)
|
| 19 | Japan Junior Championships 2014 | Niigata | 2014-11-22 | Judge (Junior ladies) |
| 20 | Shu-Shikoku-Kyushu Regional Championships 2013 | Fukuoka | 2013-10-03 | Judge (Senior ladies, Senior men, Junior men, Advanced novice boys, Basic novice B boys, Basic novice B girls) |
| 21 | Japan Junior Championships 2012 | Nishitōkyō, Tokyo | 2012-11-17 | Judge (Junior ladies) |
| 22 | Shu-Shikoku-Kyushu Regional Championships 2012 | Shimane | 2012-10-11 | Judge (Junior ladies, Basic novice B girls) |
| 23 | Western Section Championships 2011 | Kyoto | 2011-11-03 | Judge (Senior ladies, Junior men) |
| 24 | Shu-Shikoku-Kyushu Regional Championships 2011 | Okayama | 2011-09-30 | Referee (Senior men, Senior ladies, Junior men, Advanced novice girls, Basic novice B girls)
|
| 25 | Japan Championships 2010 | Nagano | 2010-12-24 | Judge (Senior ladies) |
| 26 | Japan Championships 2009 | Osaka | 2009-12-25 | Judge (Senior men) |
| 27 | Japan Championships 2008 | Nagano | 2008-12-25 | Judge (Senior ladies) |
| 28 | Japan Junior Championships 2008 | Nagoya | 2008-11-23 | Judge (Junior men) |
| 29 | Japan Championships 2007 | Kadoma | 2007-12-26 | Judge (Senior ladies) |
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