The Royals rocked the Turks, 13-1.
Harrisonburg leads the series 2-1 and can clinch the VBL championship Saturday night at home.
Winchester hit two first inning home runs en route to a 7-1 lead after one.
The Royals added three more in the second.
Winchester starer James Baune went the distance to earn the win. He allowed one earned run and struck out four.
Brad Picha, Justin Fox, Joseph Odom and Ethan Harris hit home runs for Winchester.
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