The only change to the make-up of the league was the Top Kyushu champion team Fukuoka Sanix replacing Kyuden Voltex.

The teams in Group 2 ranked 5th to 7th went through to the promotion and relegation play-offs against regional challengers to fight to remain in the Top League.

Source: rugbyarchive.net[3] • The top 4 teams (Green background) qualify for the title play-offs, and also play in the All-Japan Rugby Football Championship.

• Teams 5 to 8 (Blue background) qualify for the wildcard play-offs for entry into the All-Japan Rugby Football Championship.

Source: rugbyarchive.net[3] • Teams 1 to 4 (Blue background) qualify for the wildcard play-offs for entry into the All-Japan Rugby Football Championship.

• Teams 5 to 7 (Yellow background) go through to the promotion and relegation play-offs against regional challengers to retain their places in the Top League.

The top 4 teams of 2014–15 were Kobelco Steelers, Panasonic Wild Knights, Toshiba Brave Lupus, and Yamaha Júbilo.

So Kubota Spears, Coca-Cola Red Sparks and Toyota Industries Shuttles remained in the Top League for the next season.