Jacob Misiorowski Threw 105.5 MPH, And MLB Is Still Catching Its Breath

Hold up. Seriously. Did you see what went down Friday night? You *have* to know about Jacob Misiorowski. This dude, a starter for the Brewers, just did something absolutely insane on the mound against the Cubs. We're talking a fastball clocked at a mind-bending 105.5 miles per hour. One-hundred-five-point-five! That's not just a big number, Emerald City, that's a whole new level of heat, and it flat out broke his own record for any starting pitcher in the entire pitch tracking era. This is Aroldis Chapman territory, but from a *starter*!

The Fireballer Just Keeps Going

Yeah, you read that right. Misiorowski, only 24 years old, wasn't messing around from the jump. His first pitch? A casual 103.1 mph. Then he dialed it up to 104.3 mph. And then, BOOM, the 105.5 mph rocket to Pete Crow-Armstrong, who somehow even fouled it off before striking out a few pitches later. This isn't just a fluke. This kid is setting records, or at least that's what teammate Garrett Mitchell said. Mitchell was practically speechless, calling it 'impressive' and noting it 'feels like every time he goes out there, he's breaking a record of some sort.' Misiorowski just broke his own, having thrown 104.5 mph back on June 12 to Kyle Schwarber. Seriously, where does it stop? Brewers manager Pat Murphy even asked, with a smirk, if there's a limit.

More Than Just Radar Guns

What's wild is Misiorowski himself played it cool. He said 'It's co

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ol' after the game, even thinking he 'slipped a little bit on that pitch. My front foot slid out from under me.' Imagine, 105.5 mph on a *slip*! The guy is humble, too, saying 'Speed is cool, but if it doesn't win a ball game, it doesn't matter.' And win they did, 6-2 against the Cubs. Misiorowski battled for six innings, giving up a solo shot to Seiya Suzuki, his first in over 75 innings, and walked four while throwing a season-high 107 pitches. He even struck out Ian Happ with the bases loaded on a 102.8 mph fastball for his final pitch. Talk about clutch when it mattered! His ERA? A ridiculous 1.45, putting him third-lowest for a pitcher through his first 16 starts in the last five decades, right up there with Trevor Rogers and Nolan Ryan. So yeah, the velocity is mind-blowing, but the kid can *pitch* too. Misiorowski says he thinks 106 mph is possible, maybe even 108. He says 'Science says you can hit 108. Someone eventually is going to hit it.' He's not wrong. While Misiorowski is pushing the limits of the game, our own Mariners are out there grinding. On Friday, our M's got it done, beating the Cleveland Guardians 3-1. That's the kind of gritty win we love to see, especially when the pitching is on point. What Misiorowski is doing is incredible, and it sets a standard. You gotta wonder, what kind of fire can our guys bring to T-Mobile Park? We need that kind of energy, that kind of edge. The season is still unfolding, but man, that 105.5 mph pitch is a benchmark now. Let's go M's, let's bring that heat!

This article was created with AI assistance and reviewed by Seattle On Tap editorial staff. Always verify information with official team sources.