Jade Peterson threw a one-hit shutout with 10 strikeouts and one walk in the win.
Earlier in the day, the Wildcats edged past their rivals from Lawton-Bronson with two unearned runs in the bottom of the 7th for a 3-2 comeback victory.
River Valley earned their spot in the championship game with a 4-3 win over Ridge View in 12 innings. The game was the longest in WVC Tournament history.
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