Eight teams from across the city contested during the season, with South Sydney finishing on top of the ladder to claim the premiership.

[1] The quality of the competition in 1918 suffered due to the loss of players fighting in World War I.

A win for South Sydney would virtually guarantee them the premiership unless they dropped their final two games.

At the end of the day, South Sydney prevailed 11–3 and went on to win all their remaining matches, taking away their fourth premiership from eleven seasons.

The Western Suburbs club claimed their first title by winning the knockout competition, the City Cup.