Breaking Down Keider Montero's Start Tonight Against The Marlins

The Tigers broke a five-game losing streak with a 2-0 win that saw Javy Baez hit a home run and continue his hot streak at the plate. But for tonight, I wanted to go over the second start of the season of Keider Montero. While the whole reason why Montero is here because Justin Verlander is on the IL, it was something that manager A.J. Hinch said during spring training that sticks in my head. He told him that he would not be in Toledo for too long, which makes sense, knowing how MLB pitching works. 

"We've got to protect our rotation," Hinch said back after he was sent down on March 4th. "For him, defining the role where we felt like he can help us the most was going to be, at some point, in our rotation. Whether that's getting called up as a sixth starter, or god forbid anything happens, he's equipped to handle that, and the only way to do that is get him going and building him as a starter."

Hinch doubled down on that faith last Sunday during the series finale against the St. Louis Cardinals.

“He takes everything in stride. He trusts himself, he trusts us. He knows he’s going to be a part of this. He clearly wants to be a regular with us and he will be.”

The beat writers, everyone, was shocked that Montero was sent down so early in camp.  His velocity was up from last year, sitting around 96.3, up from 93.9 MPH, when spring training started. Early on, Montero said he did not care about what his role was, as long as it was on the big league roster. 

But his role, after tonight, no matter what, is a starter. Here's why. his role is settled. No matter what, Keider Montero is a starter. Here's why.

The mood in the clubhouse was bittersweet despite the victory. Outfielder Parker Meadows was absent, dealing with a situation that cast a shadow over the win. Montero, speaking through interpreter Carlos Guillen to Detroit Free Press reporter Evan Petzold, made clear the team was carrying Meadows with them.

"I knew that I had a chance to break the losing streak, and I knew I had that responsibility. Fortunately, we did it and we won. We broke the streak. I'm feeling very, very bad for Parker (Meadows), but we're playing for him. This win is also for him."

Montero's line Friday was as clean as it gets for a pitcher still trying to establish himself at the major league level: 6.0 IP, 2 H, 0 R, 0 ER, 1 BB, 7 K on 80 pitches. It marks the second time he has shutout the Marlins, oddly enough. 

He allowed a first-inning triple to Xavier Edwards and promptly stranded him. From there, only Connor Norby managed another hit — a fifth-inning single. Montero used all six of his pitches, commanded the strike zone, and attacked hitters before they could settle in.

His 34% four-seam fastball usage sat at 94.2 mph Thursday, up from his 2025 average of 93.6 mph. The sinker, which generated a 60% called-strike-plus-whiff rate on the season, sat 94.4 mph. His changeup produced a 43% whiff rate in the early going. The slider, his sharpest put-away pitch, generated swings and misses at a high rate when located properly. His knuckle curve, spinning at 2,864 rpm, gave Miami hitters a completely different look but didn't throw it much. 

Perhaps the most telling number: seven strikeouts on 80 pitches. That's efficiency. That's a pitcher working with a plan and executing it.

The case for Montero as a permanent starter begins with his arsenal. Per the Statcast data from his 2026 pitch card, he carries six distinct offerings:

Four-seam fastball (34% usage, 94.2 mph avg), sinker (19%, 94.4 mph), changeup (19%, 87.3 mph), slider (16%, 82.9 mph), knuckle curve (11%, 80.0 mph), and a cutter (1%, 86.9 mph).

That depth is a starter's calling card. Relief pitchers live on two or three pitches. Starters need to cycle through a lineup two, three times, showing hitters something different each pass. Montero does that. His changeup plays off the sinker. His knuckle curve — with 53 inches of drop and 2,864 rpm of spin, is a completely different shape than anything else in his hand. His slider generates the most swings and misses when he locates it at the bottom of the zone.

The velocity jump from 2025 to 2026 makes every one of those pitches more dangerous. At 93.9 mph, his fastball was fringe.  This has been a solid pitch to set up his secondaries, and the added velo on his secondary pitches widens the tunneling gaps that generate swings and misses.

This is not a one-start sample. Montero has been building toward this moment for two years.

In the final stretch of the 2025 regular season — five starts after he was recalled from Toledo in September, Montero posted a 2.59 ERA with a 1.15 WHIP and a 17-to-5 strikeout-to-walk ratio over 24.1 innings. That is not accident-level pitching. That is a pitcher figuring it out.

Then came the playoffs. Montero earned a save in Game 1 of the American League Division Series against Seattle, throwing a scoreless 11th inning. It extended his postseason scoreless streak to 8⅓ innings across the 2024 and 2025 playoffs. In October, with everything on the line, Montero has been lights out.

And specifically as a starter in 2025, Montero posted a 3.72 ERA — substantially better than his 4.37 overall mark, which included rocky bullpen appearances early in the year. The split tells you everything. He is a starter. Pitching in short, high-leverage relief doesn't play to his strengths. Building through a lineup twice, sequencing pitches, establishing patterns,  that's where he thrives.

Detroit's rotation has been decimated. Reese Olson (labrum), Jackson Jobe (elbow, 60-day IL), Troy Melton (elbow, 60-day IL), and Beau Brieske (groin, 60-day IL) are all sidelined for extended stretches. Verlander, 43, landed on the IL after Opening Day with hip inflammation.

Even when Verlander returns, the Tigers cannot count on a 43-year-old pitcher to eat innings for a full 162-game season without interruption. Baseball doesn't work that way, as Hinch himself acknowledged this spring. The organization has known for months that it would need Montero in the rotation at some point. That point has arrived.

Hinch said it plainly: "He clearly wants to be a regular with us, and he will be." After Thursday night, that statement reads less like encouragement and more like prophecy.

The question heading into 2026 wasn't whether Keider Montero had the talent to start in the big leagues. It was whether he had the consistency, the command, and the mental makeup to do it every fifth day.

Through two starts, the answer is yes on all counts. He's commanding the zone. He's sequencing. He's pitching with poise when it matters — not just on the mound, but in the clubhouse, playing for a teammate who needed it.

Verlander will come back. The Tigers' other starters will eventually return. And Keider Montero will still be in the rotation because he's earned it.

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