So, to my surprise, the field was not expanded this year. Not sure why not, but we're back to 49 teams once again this year.
Okinawa starts today, and I am working on the brackets. Sadly PDF to excel conversion fails when it comes to brackets, so... no shortcuts for me.
Anyways, all brackets are completed and are up to date as of games on 7/9.
The links are here: Hokkaido, Tohoku, Kanto, Hokushinetsu, Chuubu, Kinki, Chuugoku, Shikoku, Kyushu