In the same year, South Sydney reached the grand final against Balmain with Moore being selected to play at second-row.
The final was required to be played due to both clubs finishing on equal points.
In the second half, Souths scored a try to bring Balmain's lead back to only 2 points.
Despite repeated attacks at the Balmain line, Souths were unable to score another try and lost the grand final which was played in front of a low crowd of 7,000 at the Sydney Cricket Ground.
In 1918, Moore played 9 games as Souths claimed the premiership finishing first on the table and only losing twice throughout the season.