Oregon State 5, Utah 4
At Goss Stadium
Pinch runner Preston Jones scored from second on Steven Kwan's walk-off single to left-center in the ninth inning as the No. 1-ranked Beavers rallied in their series opener before 2,912 fans.
OSU has won 21 in a row and is 26-1 overall, 10-0 in the Pac-12.
The Beavers tied the score with a run in the eighth, then bunched together two hits with a Utah error in the ninth.
With two out and two strikes, Andy Anderson reached base on a fielder error by the Utes pitcher, who fielder the back-to-the-box grounder but dropped the ball as he tried to make a throw to first base.
KJ Harrison kept the inning alive with a single to left.
Then Kwan got his winning hit, making a winner of Jake Mulholland (3-0).
The tying run came when Harrison led off the eighth with a single, went to second on Cadyn Grenier's two-out hit and scored on pinch-hitter Andy Atwood's single up the middle.
Each team had 10 hits. Utah committed four errors to OSU's two. The Utes left eight men on base; Oregon State stranded seven.
Mulholland was the fourth OSU hurler. He allowed three hits and one run in 1 2/3 innings.
Luke Heimlich's start lasted 6 2/3 innings ,as he gave up six hits, two walks and two runs, with eight strikeouts.
Utah fell to 12-14 overall and 3-7 in the Pac-12.
Oregon 10, UC Irvine 1
At PK Park
The Ducks cruised with a combination of David Peterson's pitching and productive offense to open a nonleague series in Eugene.
Peterson (7-1) struck out 11 in six innings, allowing five hits, no walks and one run.
Oregon led 3-0 after one inning and 9-1 when Peterson called it a night.
UO improved to 19-8, while the Anteaters fell to 12-14.
Pepperdine 12, Portland 6
At Joe Etzel Field
The Pilots fought back to tie the score 3-3, scoring two runs in the sixth and one in the seventh.
But Pepperdine got five runs in the eighth and claimed the first of three games set for this weekend at the UP stadium.
The Waves totaled 18 hits against four Portland pitchers. UP had 12 hits.
The Pilots slipped to 6-23-1 overall and 2-8 in the West Coast Conference.
The Waves are 15-4, 4-3.
Concordia 7, Central Washington 1
At Porter Park
The Cavaliers won a game that began March 26 in Ellensburg, Washington. Concordia improved to 8-22 overall and 6-14 in the Great Northwest Athletic Conference, with Scott Schepige (3-2) getting the win on 4 2/3 innings of relief pitching. CWU fell to 17-13, 11-9 GNAC. Schepige gave up eight hits,
UCLA 2, Oregon 0
At Los Angeles
The Ducks' 35-0 start is now 35-1.
No. 1-ranked Oregon and No. 9 UCLA each had five hits Friday night, but the Bruins made single runs in the second and fourth stand up in the opener of a three-game series.
Oregon left six runners on base; UCLA standed two.
The Bruins improved to 27-9 overall and 3-4 in the Pac-12.
Oregon is 8-1 in the conference.
UCLA took the lead with two singles and a hit batter in the second and added to it with a solo homer in the fourth.
Megan Kleist took the loss, despite striking out nine batters and walking none.
Southern Utah 6, Portland State 4
At Gordon Faber Recreation Complex
The visiting Thunderbirds out-hit PSU 10-4 in Hillsboro to win Game 1 of their series.
A second game was postponed to Saturday by rain. The teams will meet for two games starting at 5 p.m.
The Vikings (5-24, 3-4 Big Sky) scored three runs in the fifth to lead 4-2, but SUU (8-19, 4-3) came back with a four-runs sixth.
PSU was 1 for 8 with runners in scoring position, leaving nine runners on base.
Oregon State at Washington, ppd.
A long, rainy day ended with OSU and UW tied 2-2 after two innings and the game suspended to 3 p.m. Saturday.
USC 17, Oregon 7
At Pape' Field
No. 9 USC led 9-3 at the half en route to the road win.
Oregon slipped to 7-6 overall and 3-2 in the Pac-12.
The Trojans are 10-3, 4-0.
Shannon Williams led the Ducks with three goals.
Stanford 7, Oregon 0
At Student Tennis Center
The 10th-ranked Cardinal raised their record to 15-1, 7-0 Pac-12, while the No. 37 Ducks dropped to 11-8, 4-3.
Oregon 4, Utah 0
At Sale Lake City
The 25th-ranked Ducks got their first Pac-12 victory of the season. Oregon is 15-4 overall, 1-2 in conference action. Utah is 14-7, 0-3.
Oregon's 28th-ranked Thomas Laurent won 6-2, 6-4 for his 26th singles triumph this season, one shy of tying the school record.
Portland State moved up from 11th to ninth on the final day of the 18-team Wyoming Cowgirl Classic in Maricopa, Arizona.
PSU had the second-best team score in the third and closing round at Ak-Chin Southern Dunes Golf Club.
Freshman Jasmine Cabajar finished with a 1-under 71, as did sophomore Carson Pickett, who posted her career-best 18.
Cabajar tied for 10th at 221 to lead the Vikings, who totaled 903.
UC Irvine (874) won by six shots over Sacramento State.
• Oregon State is sixth out of 14 teams after the first round of the PING/ASU Invitational in Tempe, Arizona.
Hannah Swanson paced the Beavers with an even-par 72 at the ASU Karsten Golf Course.
Host Arizona State and Baylor are tied for first at 10-under 278. The Beavers totaled 291.
Swanson is in a group of eight players tied for 18th that includes Arizona's Gigi Stoll from Beaverton.
WOMEN'S BEACH VOLLEYBALL
Oregon 3, Sacramento State 2
Boise State 3, Oregon 2
At Boise, Idaho
The Ducks (1-3), playing for the first time since March 5, split two matches at BSU.