It was a tight game until Geri Ann Glasco stepped to the plate with the bases loaded in the fifth inning.
Glasco blasted a grand slam to center field with two outs, lifting the No. 5 Ducks past No. 25 Arizona State 5-4, in Tempe, Arizona on Saturday night. The win clinches a series win for the visiting Ducks.
Oregon (34-6, 12-2 Pac-12) now owns five straight wins against ASU, the longest streak in program history.
ASU was the first to score with a run in the third inning. Oregon had its chances, leaving the bases loaded in both the second and fourth innings.
When the Ducks loaded the bases again the fifth, Glasco made sure to change the tide. Her grand slam to deep center and a RBI single from Hailey Decker gave the Ducks a 5-1 lead after five innings.

Geri Ann Glasco has some serious ⚡️POWER⚡️
Her grand slam is the @OregonSB #12Best play! #Pac12SB https://t.co/gOutnPFfYd
— Pac-12 Network (@Pac12Network) April 24, 2016

ASU surged back, however. The Sun Devils scored two runs in the bottom of the fifth to make it a 5-3 Duck lead. They then put their first to runners on base in the bottom of the seventh, but could only muster one run against Oregon starter Megan Kleist.
The Ducks go for the series sweep with the final game against ASU on Sunday at 1 p.m. on Pac-12 Networks.
Follow Jonathan Hawthorne on Twitter @Jon_Hawthorne