Approximate ratio of Japanese coaches:
Male coaches: 30%, Female coaches: 70%
20s: 20%, 30s: 40%, 40s: 20%, Over 50s: 20%

[Kanto]
Tokyo Area Coach List (53)
Kanagawa Area Coach List (12)
Chiba Area Coach List (3)
Saitama Area Coach List (3)
Tochigi Area Coach List (1)

[Kansai]
Osaka Area Coach List (11)
Hyogo Area Coach List (4)
Wakayama Area Coach List (1)

[Hokkaido]
Hokkaido Area Coach List (1)

[Tohoku]
Iwate Area Coach List (1)
Akita Area Coach List (1)
Fukushima Area Coach List (1)

[Chugoku / Shikoku]
Hiroshima Area Coach List (1)
Okayama Area Coach List (4)

[Kyusyu]
Fukuoka Area Coach List (2)
Nagasaki Area Coach List (1)

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