Leo Rivas turned a tense extra-inning opener into a Mariners win Friday night, lining a walkoff single in the 10th to lift Seattle past the Chicago Cubs 6-5 at T-Mobile Park.
The winning play came with two outs after Rivas entered earlier as a pinch-runner in the eighth. He put a sweeper from Cubs reliever Ryan Zeferjahn into center field, bringing home Randy Arozarena and ending it for Seattle.
“In that situation, I’m just trying to hit the ball,” Rivas said. “See the ball, hit the ball.
Don’t try and do to much because we’ve already got two outs already. So, something low that can make something happen.
That was my approach right there.”
Seattle had let a save chance slip away in the ninth. Andrés Muñoz was trying to lock down his 101st career save with the club when Alex Bregman spoiled the party, tying the game with a solo homer on an 0-2 count and giving him his second long ball of the night.
The Cubs had grabbed control early, jumping out to a 3-0 lead in the first inning. Pete Crow-Armstrong opened with a leadoff homer, and Bregman followed with a two-run blast.
But the Mariners answered fast. In the bottom of the second, Cal Raleigh crushed a three-run homer into the Mariners’ bullpen in left-center field, his 14th of the season, off former Mariner and Seattle native Matthew Boyd.
Seattle kept the pressure on in the same inning. After Cole Young reached on a single, he advanced to second on a fly ball to left, then scored on Brendan Donovan’s two-out single to right, giving the Mariners the lead.
The margin grew to 5-3 in the fifth with some help from the Cubs. Brock Rodden reached on a throwing error, moved to second on a balk by Boyd, and then advanced to third on a groundout before Arozarena brought him in with a soft single to center.
Chicago trimmed it again in the eighth when Ian Happ led off with a home run off Eduard Bazardo.
Seranthony Domínguez, now 5-3, handled the 10th with a scoreless inning to earn his first win as a Mariner.
Emerson Hancock battled through 5 2/3 innings for Seattle after needing 30 pitches in the first. He allowed three runs, all in that opening frame, on eight hits while striking out six and walking none. He also worked out of trouble in the third, fourth and fifth.
“Incredible outing for him,” manager Dan Wilson said. “Maybe not on paper his best outing, but he pitched with his heart tonight and he overcame a lot… Really guts outing by Emerson tonight.”
Boyd gave up five runs, four earned, on six hits and two walks while striking out three.
The series continues Saturday at 4:15 p.m., when Mariners left-hander Kade Anderson makes his major league debut against left-hander David Peterson, who is 7-7 with a 5.29 ERA.
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