Nobody's Ready For Jacob Misiorowski's 103.7 MPH Fastball And Neither Are Hitters

Alright, Seattle, buckle up because what Jacob Misiorowski just did is absolutely insane. You think you've seen heat on the mound? This dude is operating on a whole other level. Saturday night in Denver, the Brewers right-hander threw a pitch that officially etched his name into the record books, and honestly, the rest of the league needs to take note. This wasn't just a win for Milwaukee, it was a statement from a pitcher who feels like he's barely scratching the surface of his potential.

The Unbelievable Arm That's Rewriting History

Seriously, folks, get this: Misiorowski fired off a fastball that clocked in at 103.7 mph. And get this, it wasn't even in the strike zone, it was low and outside to Kyle Karros in the third inning! That's the fastest pitch ever recorded by a starting pitcher since they started tracking pitch velocity way back in 2008. We're talking about a guy who's putting up reliever Aroldis Chapman's insane numbers, whose 105.8 mph pitch from 2010 still holds the overall record. Misiorowski dominating the Colorado Rockies in that 7-1 victory was just wild to watch. He slung 52 pitches at 100 mph or faster that night. Fifty-two! That's his second best showing, only topped by the 57 hundred-plus mph pitches he threw back on May 25 against the St. Louis Cardinals, where he even hit a personal high of 103.5 mph. Oh, and he also set another record with 45 pitches at 101 mph or greater in a single game in the pitch-tracking era. The man is just lights out.

More Than Just a Flamethrower, He's a Problem

It's not just the velocity, though that alone is enough to make your jaw drop. This 24-year-old phenom, who was already an All-Star as a rookie in 2025, put up a line on Saturday that shows he's got the full package: one unearned run on just four hits and three walks, while striking out eight over seven dominant innings. He moved to a ridiculous 7-2 record for the season and his ERA now sits at a sparkling 1.50, barely trailing the Phillies' Cristopher Sanchez at 1.46. He's leading the league in strikeouts with 116, WHIP at 0.789, fewest hits per nine innings at 4.7, and most strikeouts per nine innings at 13.7. Brewers catcher William Contreras summed it up perfectly, saying, "Thanks to God he's on our side. I think we know what kind of pitcher Miz is. I don't think there's anybody in the league that wants to face him." Even after taking a scare when he got hit in the calf by Troy Johnston's comebacker, and later hitting Tyler Freeman in the helmet with a 98.2 mph cutter, Misiorowski showed insane maturity. Manager Pat Murphy said, "That's been No. 1 this year: The maturity has been tremendous. We got to take note of what this guy has done. Pitching isn't this easy in the big leagues. To be as consistent as this guy has been over the last how many outings is remarkable. I don't know how many guys are doing that." Misiorowski is a force of nature right now. We're watching a young hurler who's not just throwing gas, but is consistently getting it done every time he steps on the mound. Every single outing from this guy is turning into must-watch TV. You gotta tune in, because who knows what record he's gonna shatter next? This is the kind of talent that makes you sit up and pay attention.

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