| Competition | City | Date | Roles |
|---|
| 1 | Japan Championships 2023 | Nagano | 2023-12-20 | Judge (Senior men, Senior pairs) |
| 2 | Japan Novice Championships 2023 | Tokyo | 2023-10-20 | Referee (Advanced novice girls, Intermediate novice boys)
|
| 3 | Chu-Shikoku-Kyushu Regional Championships 2023 | Fukuoka | 2023-10-06 | Referee (Senior ladies, Junior ladies, Advanced novice boys)
|
| 4 | Japan Championships 2022 | Kadoma | 2022-12-22 | Judge (Senior ladies, Senior pairs) |
| 5 | Eastern Section Championships 2022 | Maebashi City | 2022-11-03 | Judge (Senior ladies, Junior men, Junior pairs) |
| 6 | Chu-Shikoku-Kyushu Regional Championships 2022 | Okayama | 2022-09-30 | Judge (Senior men, Junior men, Advanced novice girls, Intermediate novice boys, Intermediate novice girls) |
| 7 | Japan Championships 2021 | Saitama | 2021-12-22 | Judge (Senior ladies) |
| 8 | Eastern Section Championships 2021 | Tokyo | 2021-10-28 | Judge (Senior men, Junior ladies) |
| 9 | Kanto Regional Championships 2021 | Chiba | 2021-09-30 | Judge (Senior ladies, Junior men, Advanced novice girls, Advanced novice boys, Intermediate novice girls) |
| 10 | Japan Championships 2020 | Nagano | 2020-12-24 | Judge (Senior ladies) |
| 11 | Tokyo Regional Championships 2020 | Nishitokyo | 2020-10-09 | Judge (Senior men, Junior ladies, Advanced novice boys, Intermediate novice girls) |
| 12 | Kanto Regional Championships 2020 | Hitachinaka City | 2020-10-02 | Referee (Senior men, Senior ladies, Junior men, Advanced novice boys, Intermediate novice boys, Intermediate novice girls)
|
| 13 | Japan Championships 2019 | Tokyo | 2019-12-18 | Judge (Senior men, Senior pairs) |
| 14 | Kanto Regional Championships 2019 | Yamanashi | 2019-10-03 | Judge (Junior ladies, Advanced novice boys, Advanced novice girls) |
| 15 | Japan Junior Championships 2018 | Fukuoka | 2018-11-23 | Judge (Junior ladies) |
| 16 | Eastern Section Championships 2018 | Hachinohe | 2018-10-25 | Judge (Senior ladies, Junior men, Junior pairs) |
| 17 | Japan Novice Championships 2018 | Osaka | 2018-10-19 | Judge (Advanced novice girls, Advanced novice boys) |
| 18 | Tokyo Regional Championships 2018 | Nishitokyo | 2018-10-05 | Judge (Senior ladies, Junior men, Advanced novice boys, Basic novice B girls, Basic novice B boys) |
| 19 | Kanto Regional Championships 2017 | Kanagawa | 2017-09-28 | Judge (Junior ladies, Advanced novice boys, Basic novice B girls) |
| 20 | Eastern Section Championships 2016 | Nishitokyo | 2016-11-04 | Judge (Senior men, Junior ladies) |
| 21 | Eastern Section Championships 2015 | Gunma | 2015-10-29 | Judge (Senior ladies, Junior men) |
| 22 | Kanto Regional Championships 2014 | Nagano | 2014-09-25 | Judge (Senior ladies, Senior men, Junior men, Advanced novice girls, Advanced novice boys, Basic novice B boys) |
| 23 | Eastern Section Championships 2013 | Gunma | 2013-11-01 | Judge (Senior men, Junior ladies) |
| 24 | Kanto Regional Championships 2013 | Saitama | 2013-10-11 | Judge (Senior men, Senior ladies, Junior men, Advanced novice boys, Advanced novice girls, Basic novice B boys) |
| 25 | Western Section Championships 2012 | Fukuoka | 2012-11-01 | Judge (Senior ladies, Junior men) |
| 26 | Kanto Regional Championships 2011 | Gunma | 2011-10-14 | Judge (Junior ladies, Basic novice B girls) |
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