Cal Quantrill Uses Surprise Slider to Shut Down Rays
Cal Quantrill’s sudden reliance on a rarely used slider sparked a 6-0 shutout against the Tampa Bay Rays, anchoring a depleted Rangers rotation.
The Texas Rangers needed a savior. They found one in an unlikely pitch.
Cal Quantrill had thrown just 35 sliders all season. On Thursday night, he threw 17 of them in a single game, baffling the American League-leading Tampa Bay Rays in a crucial 6-0 victory at Globe Life Field.
The sudden strategic pivot opened a vital four-game series. It also proved that Quantrill, who started the year in the minor leagues, has become the undeniable anchor of a bruised Texas rotation.
The Tactical Pivot at Globe Life Field
Plans change quickly in baseball. Rangers catcher Elias Díaz and Quantrill noticed something unexpected when looking at the lineup cards before the game. The Rays had stacked their batting order with far more right-handed hitters than Texas analysts had anticipated.
Díaz, who has caught Quantrill for three years across different teams, suggested a change. He wanted to dust off the right-hander’s slider.
“Díaz and I have worked together a lot,” Quantrill said after the win. “One thing I can always trust with Díaz is if we find something that’s working, he’s not afraid to be creative. He started calling sliders, so we threw sliders.”
The results were immediate. Quantrill cruised through seven scoreless innings, limiting one of the league’s most potent offenses. It was his highest single-game slider usage since 2020, save for a lone outing in early 2025.
Pitching coach Jordan Tiegs had been nudging Quantrill to trust the pitch more. On Thursday, those suggestions finally paid off on the mound.
“I’ve thrown sliders before,” Quantrill shrugged. “I know how to throw them. I think both Tiegs and Díaz feel like it’s probably better than maybe I gave it credit for.”
From Triple-A Depth to Rotation Ace
Quantrill’s rise in Arlington is one of the quietest success stories of the season. He signed a minor-league contract with the Rangers during the offseason, eventually reporting to Triple-A Round Rock to start the year.
When Texas called him up in mid-April, they envisioned him as a versatile bullpen piece. He worked as a long-relief option. He pitched in high-leverage late innings. He did whatever was asked.
Then the injuries hit. Highly touted prospect Jack Leiter went down in June. Soon after, veteran star Nathan Eovaldi landed on the injured list in August. Suddenly, a bullpen utility man was thrust into the starting rotation.
He has done more than just survive. He has dominated.
“Gosh, what he did in August, and now what he’s doing to start September,” manager Skip Schumaker said. “He has stepped right in and filled the role. He is like an ace.”
Schumaker has known Quantrill since the San Diego Padres drafted the pitcher years ago. He praised the right-hander’s willingness to absorb heavy innings without complaint.
“I would not have envisioned it, but I’m happy we have him, there’s no doubt,” Schumaker added.
The September Push
Quantrill was recently named the Rangers’ Player of the Month for August. It was a well-deserved honor after he posted a stellar 1.45 ERA across 31 innings. He has now made 29 appearances this year, including 17 relief outings and 12 starts.
Over his last eight games, his ERA sits at a microscopic 1.25. That is the lowest qualified ERA in Major League Baseball over that stretch.
Without his presence, the Rangers’ postseason hopes might have already vanished. While All-Star closer Jacob Latz remains a candidate for team awards, Quantrill has arguably been the roster’s most valuable player since his promotion.
With only 25 games left in the regular season, the Rangers are feeling the pressure of a tight playoff race. Their struggles on the road have frustrated the clubhouse, making home stands at Globe Life Field incredibly important.
“I think the end is in sight and we have bigger ambitions than the regular season,” Quantrill said. “We’re well aware of how important each one of these games is. I want to make sure that there’s nothing left in the tank.”
Great teams rely on stars like Corey Seager and Jacob deGrom. But they also need players like Quantrill, Latz, and utility man Ezequiel Duran to survive the grueling summer months.
For Texas, the formula is working. And if Quantrill’s slider remains this sharp, the Rangers might just pitch their way deep into October.
