The competition's first ten-team season will see four already established clubs proceed to the knockout rounds, with the four expansion clubs all missing out.
In a big tick to the competition and expected interest in the finals series from the NRL, the semi-finals will also be played at the home clubs men's home venues.
NRL CEO Andrew Abdo revealed the competition's TV ratings have eclipsed 6 million for the season.
“More than 6.2 million fans have viewed an outstanding NRLW competition,” Abdo said in a statement.
“The expanded 10-team NRLW competition went all the way to the final match of the regular season in order to determine the semi-final match-ups, and the first ever opportunity for Clubs to play NRLW semi-final football at the home stadiums.”
NRLW semi-final schedule
Semi-final 1: Newcastle Knights (1) vs Brisbane Broncos (4), Sunday, September 24, 2:05pm (AEST) at McDonald Jones Stadium, Newcastle
Semi-final 2: Sydney Roosters (2) vs Gold Coast Titans (3), Sunday, September 23, 4:15pm (AEST) at Allianz Stadium, Sydney