1966 Japan Soccer League

The 1966 season of the Japan Soccer League.

Nagoya Mutual Bank became the first original JSL club to be relegated. In its place, Nippon Kokan from Kawasaki, Kanagawa was promoted and began a long career of league success that was only brought to a halt by the professionalization of the league.

Nippon Kokan promoted, Nagoya Mutual Bank relegated.

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