During this time, there was a fight over the name of 'the Ninth High School' between Niigata and Matsumoto, and the use of numbers was abandoned and the place name was used instead.
このさい、新潟と松本のあいだで「第九高等学校」の名称の奪い合いがおきたため、番号をやめて地名をもちいるようになった。