Jacob Misiorowski Shatters MLB Pitching Records with Unprecedented 103 MPH Fastball

On May 25, 2026, Milwaukee Brewers pitcher Jacob Misiorowski etched his name into MLB history with a jaw-dropping performance that redefined the limits of power pitching. The right-hander threw 57 pitches of 100 mph or more, including an unprecedented eight deliveries at 103 mph or higher in a single inning, according to official MLB statistics.

Breaking the Fastest-Pitch Barrier

Misiorowski’s 103 mph fastball – the fastest recorded in the pitch-tracking era (since 2008) – came during his start against the St. Louis Cardinals. This marked the third time this season he reached 103 mph, showcasing a sustained dominance that has left opponents and analysts alike in awe.

“I’m not real keen on the numbers,” Misiorowski said post-game, though his actions spoke louder than words. His 12 strikeouts in the contest tied his career high and made him the first MLB pitcher this season to reach 100 strikeouts, according to MLB’s official statistics.

Game-Changing Performance

The Brewers’ 5-1 victory at American Family Field was a testament to Misiorowski’s brilliance. He struck out multiple batters in each of the first four innings, reaching double-digit strikeouts for the third time in his last four starts. His 1.83 ERA through 11 starts this season places him among the league’s elite.

“Christian Yelich’s two-run home run set the tone,” said Brewers manager Craig Counsell. “But Jacob took it from there. His ability to consistently hit 101+ mph with his four-seamer is unheard of.”

Historical Context and Records

Misiorowski’s 57 100+ mph pitches in a game shattered the previous record of 47 set by Hunter Greene in 2022. This achievement places him among an elite group, as only three other pitchers have thrown 40 or more 100+ mph pitches in their careers under pitch tracking, according to MLB’s official records.

His 29 1/3 consecutive scoreless innings – the third-longest single-season scoreless streak for a Brewers starter – further cements his status as one of the most dominant pitchers in franchise history.

The Evolution of a Power Pitcher

Misiorowski’s performance comes after overcoming physical challenges that had previously hampered his consistency. After dealing with cramping issues in May starts against the Nationals and Padres, he has refined his mechanics to maintain peak performance.

“He’s getting stronger with every start,” said Cardinals manager Oliver Marmol. “You can see the difference in his delivery and his ability to maintain velocity deep into games.”

Key Takeaways

• Misiorowski threw 57 pitches at 100+ mph in a single game – a new MLB record
• His 103 mph fastball is the fastest recorded in the pitch-tracking era
• He became the first pitcher in 2026 to reach 100 strikeouts
• Misiorowski’s 1.83 ERA through 11 starts ranks among the league’s best
• His 29 1/3 scoreless innings tie for third in Brewers franchise history

As the 2026 season progresses, all eyes will be on Misiorowski to see if he can maintain this historic pace. With his combination of raw power and evolving control, the Brewers’ ace is not just rewriting records – he’s redefining what’s possible in modern baseball.