The Hawks trailed 3-1 in the 4th but scored 11 unanswered to beat the Trojans 12-3.
Cascade native Colin Rea pitched 3 1/3 shutout innings but left the game with an elbow injury.
Jason Strunk's walk-off homer sends IC West to the 4A title game against Prairie who held on to beat Waukee 4-3.
Harlan scores 5 runs in the 4th to beat the Spartans 7-5.
Zach Johnson shoots a -4 to move to -3 for the tournament. He's six shots back of the lead.