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Mariah Mazon broke up a scoreless game with two-run, sixth-inning homer as Oregon State softball beat No. 11 seed Tennessee 3-1 Sunday to win the NCAA Knoxville Regional.

Oregon State, battling from the loser’s bracket, beat Tennessee 8-3 earlier Sunday to force a regional-deciding second game. The Beavers, led by Mazon’s sixth-inning homer and a stellar pitching performance from freshman Sarah Haendiges, completed the doubleheader sweep with a 3-1 win over the Volunteers.