The Nittany Lions began the season ranked No. 7 in the country.
Treanor is defining a culture of hard work and excellence during her first season in Happy Valley.
Penn State split its last series to close out its regular season at home.
Penn State almost lost a 20-point lead but held on to secure the win.
Penn State used seven pitchers in the game.
Penn State mercy ruled Pitt in the last game of the Houston Invitational.