Lewistown made short work of Lemont, winning 13-3 Thursday, to secure a home playoff game Sunday.
The Predators (14-8) finished with 16 hits to just six for the Ducks (13-8).
Chad Bautista led Lewistown with a single and a home run. Morgan Barger singled and doubled.
Sean Heckert also hit a homer for the Predators, who will host a playoff game on Sunday at 2 p.m. with the opponent to be determined.