Despite the loss in the series finale, Trojans recorded their third-straight Pac-10 series win.
After a 7-4 win over LMU on Tuesday, USC faces Washington, which ranks last in the Pac-10.
Trojans take two of three from the Ducks, winning their second consecutive Pac-10 series.
Following its first Pac-10 series win over Stanford, USC hosts Oregon in a weekend series.
USC uses strong play on the mound and at the plate to take rubber game of the series.
USC will look to its pitching staff for consistency going into its showdown with Stanford.
USC looks to end its three-game slide as it begins its weekend homestand against UCLA.
Prior to their current two-game losing streak, the Trojans had won four consecutive games.
The Trojans shut out the Bruins in front of 11,680 fans at Dodger Stadium on Sunday.
USC baseball, which has lost eight straight, will look to snap its eight-game losing streak.