SEATTLE — Jake Thompson spun 7 2/3 scoreless innings and Steven Kwan paced the No. 1 Oregon State offense with three hits to pace the Beavers to a 3-0 win over Washington on Saturday.

The victory gave Oregon State the series win after taking Game 2 of the series on Friday.

Thompson struck out eight, walked three and scattered six hits in the outing, his ninth start of the year, and picked up the win to improve to 8-0. That ties him for the nation's lead.

Jake Mulholland came on in a bases-loaded situation in the eighth, and picked up the final out of the frame on one pitch, a fielder's choice to second, to get out of the jam. He then worked a scoreless ninth for his fifth save of the season.

Kwan's three-hit day marked his sixth multi-hit effort this season for the sophomore, and was one shy of tying his career-high of four, last achieved during the series versus Stanford. On Saturday, he singled in the first and doubled in the third before a seventh-inning two-run single that put the Beavers up 3-0.

The win pushed Oregon State to 30-2 overall and 14-1 in Pac-12 Conference play, extending the Beavers' lead in the conference standings to five games over second-place Arizona. Washington, meanwhile, dropped to 20-14 overall and 7-5 in Pac-12 play.

ARIZONA 18, OREGON 4: At Tucson, Ariz., No. 7 Arizona scored early and often and No. 22 Oregon could never respond in the Pac-12 Conference loss.

Arizona (26-9, 9-6 Pac-12) jumped on Oregon starter Isaiah Carranza (2-1) from the get-go, scoring four runs on six hits in the first inning. JJ Matijevic and Mitchell Morimoto each had RBI singles as the Wildcats started off the inning with five straight singles. After a foul out, Cesar Salazar drove in two more with a single to center to extend the lead to 4-0.

The Ducks (23-10, 6-6) put up three runs in the seventh inning to cut the Arizona lead to 12-4.

Softball 

WASHINGTON 5, OREGON 3: At Eugene, No. 4 ranked Oregon lost to No. 12 Washington in nine innings in the rubber game of a three-game series. 

The Ducks (37-4, 10-4 Pac-12) dropped the opening game of the series but won the second game before falling in Game 3. It's the first time Oregon has lost a series to Washington since 2011.

Track and Field

BEACH INVITE: At Long Beach Calif., Oregon State redshirt sophomore Venessa D’Arpino set Oregon State records in the 100 and 200 meters to lead the Beavers at the Beach Invitational. 

In her first 100 this season, the former North Valley High standout won her heat and took eighth overall in 11.70 to break the former standard of 11.77, set in 2016 by her twin sister, Kerissa. Venessa’s former best in the event was 12.06, at the 2016 OSU High Performance Meet.

In the 200, she placed fourth in her heat and fifth overall in 23.81, .01 faster than her previous mark, set on April 8 at the Sun Angel Classic.