OKLAHOMA CITY -- Samantha Pappas' leadoff homer set the tone Saturday as No. 11 Oregon stayed alive in the Women's College World Series with a 3-1 decision over No. 7 Tennessee. Pappas homered on the game's second pitch from Ellen Renfroe and the Ducks never looked back. Kailee Cuico returned from a two-game suspension with an RBI hit later in the first and Jessica Moore had all the runs she needed to win. Moore worked a complete game four-hitter, walking one and fanning four as Oregon put itself in an elimination game later Saturday night with Pac-12 Conference rival California. She used just 83 pitches in an efficient performance. The Lady Vols scored their only run in the second when Tory Lewis singled home Ashley Andrews. They managed just two hits in the last five innings and both were erased on double plays, including one on interference to end the sixth. It was the first time in four WCWS trips that Tennessee has failed to win a game.