Karsten Sweum didn’t feel his best warming up on Saturday, suffering from a mediocre night of sleep on the road. Hard to imagine what he could have done at full rest.

Sweum threw the sixth recorded no-hitter in Gonzaga history, leading the Zags to a 13-0 victory over San Francisco at Benedetti Diamond.

Gonzaga (31-17) secured a share of the West Coast Conference regular season title with the win, building a four-game lead with a little more than a week left in the regular season. With tiebreakers, Gonzaga owns the No. 1 seed when the tournament begins in Scottsdale, Arizona, on May 20.

“I needed a little extra to get rolling today,” Sweum said. “But the vibes were super high after yesterday’s win. ... I’m just super grateful for what I was able to do today. It’s been a very long process and journey.”

Sweum struck out 15, tied for the second most strikeouts in a game in program history. He allowed just two walks in the run-rule shortened seven-inning game.

“It was a very emotional thing.You know, I’ll probably never forget today at the bottom of the dog pile,” he said. “I’ve never been able to do that before. I’ve never really been on a winning team before. So, just to be able to get the ball today and being in that spot to clinch, I mean, it means a lot.”

The left-handed sophomore said the last time he threw a no-hitter was in JV baseball at Glacier Peak High School in Sammamish, Washington.

“I had 19 strikeouts that game, but I think that was six years ago,” he said. “So, you know, long time coming for that.”

Sweum is only the second Gonzaga player to throw a no-hitter in the past three decades, joining current San Diego Padres pitcher Alek Jacob. He struck out 11 of 12 batters in the third through sixth innings and finished the game on just 93 pitches, throwing 63 for strikes.

“That was probably my best outing ever today,” he said. “But the funny thing is, I’m gonna wake up tomorrow and it’s like, ‘Ok, gotta play catch. Got to set myself up for Seattle U (next week).’ ”

WSU takes care of Air Force

Washington State pounded out 17 hits, manufacturing more than enough offense to top Air Force 14-4 in seven innings in a Mountain West game Saturday at Erdle Field in Colorado Springs, Colorado.

The Cougars, 27-23 overall, sit in second place at 15-8 – the most conference wins by WSU since 2010. Air Force (23-24) is in third at 14-9.

WSU clinched its sixth straight series, its longest streak since 1995.

All nine WSU players had hits and eight drove in at least one run.

Gavin Roy and Max Hartman led the way for WSU with three hits apiece. Hartman and Trevor Smith each scored three times.

Starting pitcher Griffin Smith went six innings, striking out six for the win.

The Cougars started with four runs in the first inning and added three each in the second, fourth and sixth as the game was ended by the 10-run rule in the seventh.

Roy, Hartman, Smith, Ollie Obenour, Kyler Northrop and Cam Macleod each had doubles. Obenour had two.

In the sixth inning, WSU scored three runs.

Northrop doubled, knocking in Obenour, who was in scoring position. Smith followed with a run-scoring double and Hartman singled to center field, scoring Smith and advancing Roy to third.

In the first, Hartman doubled, plating Smith. Ryan Skjonsby had a two-run single and Obenour doubled to score Matt Priest.

Spokesman-Review reporter Greg Lee contributed to this story.