Oregon can still clinch season series against Oregon State with a win on Tuesday.
Cole Irvin allowed just two runs over seven innings.
University of Oregon senior pitcher Jessica Moore was named Most Valuable Player of the NCAA Division I Women's Softball Championship Eugene Regional after posting two wins and a save in leading the host No. 3 Ducks (49-9) to the regional championship and a spot in next week's NCAA Super Regional round.
Fueled by homers by Sam Pappas & Janelle Lindvall, No. 3 Oregon (49-9) won its fourth straight NCAA Regional with Saturday's shutout of Wisconsin (44-13).
The Oregon Ducks missed their 26th all-time appearance in the NCAA Championships by just two strokes on Saturday afternoon in Tallahassee, Fla.