| Competition | City | Date | Roles |
|---|
| 1 | Japan Junior Championships 2023 | Otsu | 2023-11-11 | Judge (Junior ladies, Junior ice dance) |
| 2 | Tokyo Regional Championships 2023 | Nishitokyo | 2023-09-21 | Referee (Senior ladies, Junior men, Advanced novice girls, Intermediate novice boys)
|
| 3 | Eastern Section Championships 2022 | Maebashi City | 2022-11-03 | Judge (Senior men, Junior ladies, Junior pairs) |
| 4 | Tokyo Regional Championships 2022 | Nishitokyo | 2022-09-30 | Controller (Senior ladies, Junior men, Advanced novice girls, Intermediate novice boys)
|
| 5 | Japan Junior Championships 2021 | Nagoya | 2021-11-19 | Judge (Junior men) |
| 6 | Eastern Section Championships 2021 | Tokyo | 2021-10-28 | Judge (Senior men, Senior ice dance, Junior ladies, Junior ice dance) |
| 7 | Tokyo Regional Championships 2021 | Nishitokyo | 2021-10-07 | Referee (Senior ladies, Junior men, Advanced novice girls, Intermediate novice boys)
|
| 8 | Eastern Section Championships 2020 | Kofu | 2020-11-06 | Judge (Senior ladies, Junior men) |
| 9 | Tokyo Regional Championships 2020 | Nishitokyo | 2020-10-09 | Controller (Senior men, Junior ladies, Advanced novice boys, Intermediate novice girls)
|
| 10 | Japan Junior Championships 2019 | Kanagawa | 2019-11-15 | Judge (Junior ladies, Junior ice dance) |
| 11 | Eastern Section Championships 2019 | Nagano | 2019-10-24 | Judge (Senior men, Junior ladies) |
| 12 | Tokyo Regional Championships 2019 | Nishitokyo | 2019-09-20 | Controller (Senior men, Junior ladies, Intermediate novice girls)
|
| 13 | Japan Championships 2018 | Osaka | 2018-12-20 | Judge (Senior men) |
| 14 | Eastern Section Championships 2018 | Hachinohe | 2018-10-25 | Controller (Senior ladies, Junior men)
|
| 15 | Japan Junior Championships 2017 | Gunma | 2017-11-24 | Judge (Junior men) |
| 16 | Eastern Section Championships 2017 | Yamanashi | 2017-10-26 | Judge (Senior ladies, Junior men) |
| 17 | Tokyo Regional Championships 2017 | Tokyo | 2017-09-21 | Controller (Senior ladies, Junior men, Advanced novice boys, Basic novice B girls)
|
| 18 | Japan Championships 2016 | Osaka | 2016-12-22 | Judge (Senior men) |
| 19 | Tokyo Regional Championships 2016 | Tokyo | 2016-09-23 | Controller (Senior ladies, Junior men, Advanced novice boys, Basic novice B girls)
|
| 20 | Japan Junior Championships 2015 | Ibaraki | 2015-11-21 | Judge (Junior ladies) |
| 21 | Tokyo Regional Championships 2015 | Tokyo | 2015-09-24 | Controller (Senior men, Junior ladies, Advanced novice girls, Basic novice B boys)
|
| 22 | Japan Junior Championships 2014 | Niigata | 2014-11-22 | Judge (Junior men) |
| 23 | Eastern Section Championships 2014 | Chiba | 2014-10-30 | Judge (Senior men, Junior ladies) |
| 24 | Tokyo Regional Championships 2014 | Tokyo | 2014-10-10 | Controller (Junior ladies, Advanced novice girls, Basic novice B girls)
|
| 25 | Japan Junior Championships 2013 | Nagoya | 2013-11-22 | Judge (Junior men) |
| 26 | Chubu Regional Championships 2013 | Aichi | 2013-09-27 | Controller (Junior ladies, Basic novice B girls)
|
| 27 | Eastern Section Championships 2012 | Chiba | 2012-11-01 | Controller (Senior men, Junior ladies)
|
| 28 | Tokyo Regional Championships 2012 | Tokyo | 2012-10-05 | Controller (Senior ladies, Advanced novice boys, Advanced novice girls, Basic novice B boys, Basic novice B girls)
|
| 29 | Kanto Regional Championships 2012 | Yamanashi | 2012-09-27 | Judge (Senior ladies, Senior men, Junior men, Advanced novice boys, Advanced novice girls, Basic novice B boys) |
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