The White Sox put a four-game losing streak to rest.
"It's over, the losing streak," Quintana said. "It's most important [for the team] to win tonight."
It might not have been his best outing of the season -- he threw eight shutout frames to win against the Royals on May 2 -- but it was what Renteria has come to expect.
"He attacked the zone. I thought his secondary pitches, his breaking ball, his offspeed, Everything he did was really good today," Renteria said. "Kept the ball down, obviously gave us an opportunity to stay in that ballgame.
"Nice job -- that was Q."
Quintana's start Friday followed what has been a pattern this season -- getting into trouble early, then finding his form afterward.
After allowing a second-inning triple by Danny Valencia, followed by a sacrifice fly by Ben Gamel, the White Sox ace settled down and didn't allow another hit over the next six innings.
He did it by mixing his pitches, including a changeup he's been working on since his last start.
"He's very deceptive," Mariners manager Scott Servais said. "The gun may say it's 91-92 [mph], but it's coming out with a lot of life to it. Later in the game, he went to a changeup."
Even when the Gamel reached base on an error Yolmer Sanchez in the eighth, Gamel was cut down on the basepaths when he was caught in a rundown on the play.
The result for Quintana: eight masterful innings, one hit, one walk, seven strikeouts. And no decision to show for it. The problem was, Seattle's Ariel Miranda was also pitching a gem, allowing one run in seven innings.
Instead, David Robertson came on in relief to earn the win.
"He did an exceptional job tonight," Robertson said of Quintana. "I wished we'd scored more runs tonight, but that's just part of baseball. I'm just happy we got a win tonight."
But that has seemingly been the case for the left-hander this season, as he entered the contest with the worst run support in the Major Leagues (2.37 runs per game) -- a number that only went down on Friday.
In his last three starts, Quintana (2-5) has received a total of two runs of support.
But Quintana was the last one wwho seemed to be worrying about that afterward, especially following a White Sox win.
"It's the most important for us, for all the players, no matter if I win or not, versus the team taking a win," he said. "Keep winning games, it's what the focus ought to be."