ok, after actively stalking randoms, spamming google translate and emailing awesome Tokyo baddy fans, here is a short list of places to play in Tokyo:
•15:00 to 18:00 18:00 to 21:00
Visitor fee ¥800
Location Nishitokyo city sports center http://www.nishitokyo-sports.net/center.html
Person in-charge: Kuniyoshi
Apparently Wembley coach coaches here at 3pm.
Kuniyoshi-san is very friendly!
The location of Sakura-gawa elementary school is https://www.google.co.jp/maps/place/桜川小学
Person in-charge: Yamaguchi-san
He responded to my crappy email within a few hours! Friendly too!
Remember to bring indoor shoes, as they are very strict with this.
Hopefully this gives some visitors/foreigners some info on tokyo baddy scene!