| Competition | City | Date | Roles |
|---|
| 1 | Chu-Shikoku-Kyushu Regional Championships 2023 | Fukuoka | 2023-10-06 | Judge (Senior men, Junior men, Advanced novice girls, Intermediate novice girls, Intermediate novice boys) |
| 2 | Tohoku-Hokkaido Regional Championships 2022 | Hachinohe | 2022-10-07 | Judge (Junior ladies, Advanced novice boys) |
| 3 | Japan Junior Championships 2021 | Nagoya | 2021-11-19 | Assistant (Junior ladies)
|
| 4 | Eastern Section Championships 2020 | Kofu | 2020-11-06 | Specialist (Junior men)
Assistant (Senior ladies)
|
| 5 | Chu-Shikoku-Kyushu Regional Championships 2020 | Okayama | 2020-09-25 | Controller (Senior men, Junior men, Advanced novice girls, Intermediate novice boys, Intermediate novice girls)
|
| 6 | Western Section Championships 2019 | Otsu | 2019-11-01 | Judge (Senior men, Junior ladies) |
| 7 | Tohoku-Hokkaido Regional Championships 2019 | Hachinohe Aomori | 2019-09-20 | Specialist (Junior ladies)
Assistant (Advanced novice boys, Advanced novice girls)
|
| 8 | Eastern Section Championships 2018 | Hachinohe | 2018-10-25 | Specialist (Junior men)
Assistant (Senior ladies, Junior pairs)
|
| 9 | Japan Novice Championships 2018 | Osaka | 2018-10-19 | Judge (Basic novice B girls, Basic novice B boys) |
| 10 | Kinki Regional Championships 2018 | Osaka | 2018-10-05 | Specialist (Senior men, Junior men, Basic novice B girls)
Assistant (Senior ladies, Basic novice B boys)
|
| 11 | Shu-Shikoku-Kyushu Regional Championships 2017 | Fukuoka | 2017-10-06 | Judge (Senior ladies, Junior ladies, Advanced novice boys) |
| 12 | Kanto Regional Championships 2016 | Ibaraki | 2016-09-30 | Specialist (Junior ladies)
Assistant (Advanced novice boys, Basic novice B girls)
|
| 13 | Kanto Regional Championships 2015 | Chiba | 2015-10-08 | Specialist (Senior men, Junior men, Basic novice B boys)
Assistant (Senior ladies, Advanced novice girls)
|
| 14 | Tokyo Regional Championships 2014 | Tokyo | 2014-10-10 | Specialist (Senior men, Junior men, Advanced novice boys, Basic novice B boys)
Assistant (Senior ladies)
|
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