As was the case for the Monarchs's previous seasons they competed in the Australian Baseball League (ABL).
In previous years, the post season was played as home and away best of 3 games, with the two winner of each series meeting for a best of 5 series{fact}.
In 1997-98, this was changed to a round robin play-off format with each team playing 3 games, 1 against each of the other 3 qualified teams, with the two highest places teams playing off in the Championship Series.
[3] All games for the 9th ABL title were played at the Melbourne Ballpark from February, 10-12 with the best of three championship series February 14–15.
[3] Full series results