The Giants Used An Opener On Friday. The Man Behind It Wants His Job Back.

The San Francisco Giants' starting pitcher on Friday night faced five batters.

That was on purpose. JT Brubaker threw sixteen pitches, gave up a run, and walked off, and the pitcher who followed him threw five innings, allowed one run on six hits, struck out four and won the game 5-2. San Francisco has played 117 games this season. Friday was the second time all year one of its starting pitchers recorded three outs or fewer, and the first was a night in Atlanta on June 16, when the game got suspended and finished the following afternoon.

The starter that night was Adrian Houser.

He was also the man who came in behind Brubaker on Friday, which is the whole story sitting in one box score. The Giants took Houser out of the rotation in June. They have been asking him to pitch like a starting pitcher ever since, and getting it.

(Brubaker has appeared in 35 games this season. Friday was the only one he started, and it lasted five batters.)

The two halves of one season#

San Francisco signed Houser in December for two years and $22 million: a $3 million signing bonus, $5.5 million this season, $9.5 million next, and a club option for 2028 at $12.5 million with a $4 million buyout. He was signed to start, and he started. Fourteen times, April 1 through June 16, at a 5.73 ERA across 66 innings, with 42 earned runs in them.

Then he stopped starting. Since June 26 he has made nine relief appearances and thrown 31 innings, and seven earned runs have scored in those 31 innings. That is a 2.03 ERA. Same pitcher, same season, and the two halves do not look like they belong to the same man. Ninety-seven innings and a 4.55 for the year is the average of a bad starter and a very good something else.

Here is the part that makes it more than a reliever having a nice July. Those nine appearances, in order: two and a third innings, five and a third, two-thirds, five and two-thirds, three, four, four and two-thirds, one out, and then five on Friday. Five of the nine ran four innings or longer. Nobody uses a reliever that way. That is a starter's workload wearing a different job title, and manager Tony Vitello has now gone to it three times in twelve days: twice behind Carson Whisenhunt, once behind a one-inning Brubaker.

(The one-out appearance was August 4, in the eighth inning of a game the Giants were losing. Even the bulk guy gets a mop-up night.)

Why the club needs the arrangement#

The rotation has two holes in it and they are eight days old. San Francisco traded Tyler Mahle on August 2 and Robbie Ray on August 3, which leaves Logan Webb, Landen Roupp, and a real argument behind them.

Whisenhunt is the argument. He has made five starts this season and thrown 22 and a third innings with an ERA of 7.25, and in ten career major league starts across two seasons he has never once finished the sixth inning. His longest is five and two-thirds, on July 9. That is not a knock on a 25-year-old left-hander; it is an accounting problem, because a starter who reliably hands you fifteen outs leaves twelve for somebody, every fifth day, and the somebody has been Houser. He followed Whisenhunt for four innings on July 26 and four and two-thirds on July 31.

Anyway. Rather than hand Friday to a fifth starter, the club skipped the question and put a one-inning pitcher in front of the answer.

What Houser says about it#

He would like his old job back, and he said so without much decoration.

"I much prefer to [be a] starter," Houser said afterward, per Ali Thanawalla of NBC Sports Bay Area. "That's what I signed here to do and that's what I plan to do here in the future but right now, it's all about getting outs and helping the guys as much as possible."

Vitello was asked whether a return to the rotation was live. "Yeah, I think so," he said, per Thanawalla. "It's kind of an easy answer based on post-trade deadline, moving some guys around. I just wouldn't rule anything out." He credited a changeup Houser has been throwing more often to left-handed hitters, and an approach he described as attacking.

So both men are saying the same reasonable thing, and the results are quietly saying something less comfortable, which is that the fix and the demotion arrived together. Houser's own explanation of what changed is mechanical rather than psychological, getting his hands away from his body and finding balance, and mechanics travel. They would work fine in the first inning too. But nobody has tested that, because since June 16 he has not thrown a first-inning pitch.

Friday's win was the Giants' second in seven games, and they were flattened 8-0 on Saturday to get right back to it. Webb goes Sunday against Detroit. Forty-five games remain and none of them decide anything, which is a lot of runway for a club to stop caring what inning a man's outing begins in.

Houser cares. He is 33, he has a guaranteed $9.5 million coming next season, and the difference between a starter and a bulk reliever is the difference between two markets. He is pitching well enough to have earned the argument and pitching well enough that winning it might make him worse.

Five batters, then the starter. It worked once.

Sources: game logs, box scores, transactions, schedule and season totals via the MLB Stats API for teamId 137, retrieved August 9, 2026; the count of Giants starts of three outs or fewer is this site's, taken game by game off those box scores. Contract terms via the Associated Press and MLB Trade Rumors, December 2025. Quotes via Ali Thanawalla, NBC Sports Bay Area, August 8, 2026. The opener strategy is confirmed in the Associated Press game story by Janie McCauley, August 7, 2026.