The Macs will now face top-seeded Marymount on Saturday in the AEC Championship.
Trailing 5-2 entering the fourth, the Macs scored 11 runs over the next three frames to put the game out of reach. Steven Theisen collected five RBIs in the win, while Josh Crowding finished 3-for-4 on the evening with a pair of runs scored and two RBIs.
Ryan Crowell threw 145 pitches over eight innings for the Macs, surrendering six runs on eight hits. He walked three and struck out four.
The Macs lost two of three in the regular season to Marymount.
The first pitch of Saturday's title game is scheduled for 2 p.m.
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