This regular portion of the season precedes the playoffs for the eventual Super League Grand Final.

Wigan Warriors become only the 2nd team (along with St Helens), to retain the shield.

From 1965 to 1973 a 'League Leaders' Trophy' was introduced to reward the team finishing top.

From 2015 to 2017, League Leaders' Shield winners would participate in the short lived World Club Series.

(C) - Team also won the Grand Final to be crowned champions.