The first match day is 10th April and the last match day of the first half season is 26th June, and the first match day of the second half season is 9th September and the last match day is 13th November 1966.
|Mitsubishi Heavy Industries||0:7||1:0||1:4||2:1||2:1||2:1||2:1||8/2/4||24||0||18|
|Hitachi' head office||1:5||1:2||0:2||2:2||1:1*||4:0||1:1||5/3/6||24||-4||13|
|Toyoda Automatic Loom Works||0:8||0:3||2:2||0:3||1:2||0:1||0:0||2/3/9||10||-19||7|
|z'- Mutual savings bank of Nagoya||1:3||1:2||0:3||1:3||1:3||1:2||3:2||2/0/12||12||-22||4|
|z'- Yanmar diesel||0:2||0:3||0:3||0:2||0:4||1:2||1:0||1/2/11||7||-22||4|
In Japan Soccer League, all teams play each other two times.
Teams are allotted two points for a win, one point for a draw, and no points for a loss.
The ranking is determined as follows: 1) total of all points, 2) goal difference, 3) total of goals.
The bottom two teams shall play in play-off matches.
Japan Soccer League did not make a clear distinction between home and away team before 1983.
Green-coloured matches are in the first half of the season and yellow-coloured matches are in the second half of the season.
On 22nd April, the 2nd section match(*), Hitachi v. Toyoda, at National stadium in Tokyo is the first night match in the league.
|Hiroshima baseball stadium|
Tokyo National stadium
|JSL's team||Score||Shakaijin's team||Date||Venues|
|Mutual savings bank of Nagoya||2:3|
|Urawa soccer club|
If two teams are level at the end of the play-off matches, both teams remain the same divisions.
Nippon Kokan (in Kanagawa) is promoted to Japan Soccer League.
And Mutual savings bank of Nagoya is relegated.