Corrimal take on defending champions Keira for the first trophy of the Illawarra season in tomorrow's Twenty20 final at North Dalton Park.
Corrimal were the only unbeaten team in the five-round T20 comp with four wins and a washout and thrashed Helensburgh in their semi-finals clash.
Brad Jardine (3-21) took a hat-trick for Corrimal while Kurtis Trindall (55 not out) and Tom McDevitt (46) put on 105 for the opening wicket in an eight-wicket victory.
Pool runners-up Keira beat Wollongong in their semi-finals clash, with the Lions' NSW Country star Jono Cook named the man-of-the-match after he took 3-21 and hit an unbeaten 31.
All four grades of T20 finals will be played at North Dalton Park and Dalton Park tomorrow.
Keira take on Northern Districts in the second grade decider at North Dalton Park (10.30am), Wollongong meet Norths in third grade (10.30am) at Dalton Park South and Port Kembla face Keira Red in fourth grade at Dalton Park Middle (10.30am).
The first grade final is from 2pm.
Meanwhile, leaders Balgownie have the upperhand against second-placed Dapto this afternoon heading into day two of their round nine two-day game at Judy Masters Oval.
Balgownie recovered from 7-130 at tea on day one to make 265. No 8 Dylan Treadwell (70) and No 9 Shannon Crewdson (68) proved the difference with the bat.
Pat Hammond took 5-93 for Dapto, who resume, in trouble, at 4-49.
In other games, Corrimal need to beat Port Kembla to keep their top four hopes alive and will resume at 4-51 after they dismissed Port for 113.
Helensburgh batted through the first day and will defend 208 against third-placed University, while Wollongong (9-254) are in a strong position against Northern Districts after batting well on the opening day.
Fourth-placed Keira made 176 against Wests Illawarra, with Wests to resume at 4-41 at Figtree Oval.