A wet week and uncertain forecast has left Saturday's semi-finals in doubt, with Berkeley to be eliminated in a washout.
The final two rounds were washed out but, if the first grade major and minor semi-finals are cancelled fourth-placed Eagles will bow out while minor premiers Dapto Chiefs advance to the grand final in a fortnight.
A washout would mean third-placed Northern Pirates qualify for the preliminary final having finished above the Eagles. The Bucs would face premiers Wests Cardinals, who finished in second spot, earning the double chance.
The Chiefs v Cardinals major semi is scheduled for Cringila Park, with Pirates due to host Eagles in the minor semi at Dalton Park.
If one of the first grade venues is deemed unplayable, officials will consider moving the affected first grade, second grade and third grade minor semis to the other venue.
But a total washout would leave Eagles eliminated in first grade and Chiefs facing a five-week break heading into the one-game premiership decider on Saturday, September 20.
No baseball has been played since round 18 on August 16.
Meanwhile, in Saturday's second grade semi-finals, Cards are due to face Pirates in the major semi, with Braves taking on Chiefs in the minor semi.
In third grade, it's Pirates v Cards in the major semi and Braves v Mariners in the elimination semi.
In Sunday's Minor League, the top two fourth grade clubs, Pirates and Warriors, meet in the major semi, with Panthers taking on Cards in the minor semi.
In fifth grade, it's Warriors v Pirates in the major semi and Cards v Panthers in the minor semi.
The preliminary finals in first, second and third grade are scheduled for Hector Harvey Reserve next Saturday.
Today's games start a half hour earlier with third grade at 9am, second grade 11.15am and first grade from 1.30pm.