Jacob Misiorowski throws 105.5 mph fastball vs Cubs

Milwaukee Brewers ace Jacob Misiorowski uncorked a 105.5 mph fastball against the Chicago Cubs on June 26, 2026, breaking his own starter velocity record and tying for the third-fastest pitch in MLB's Statcast era. The heater helped Milwaukee beat Chicago and stay firmly in the MLB standings conversation during a fifth straight win.

Jacob Misiorowski needed only three pitches to make history again. The 24-year-old right-hander fired the record-setting heater on an 0-2 count to Cubs leadoff hitter Pete Crow-Armstrong in the first inning. Crow-Armstrong fouled the pitch down the third-base line before striking out later in the at-bat.

Key Takeaways

• Misiorowski's 105.5 mph fastball is the fastest ever recorded by a starting pitcher and ties Ben Joyce for third all-time since tracking began in 2008.
• He broke his own starter mark of 104.5 mph, set earlier in June against the Philadelphia Phillies.
• Milwaukee beat Chicago 6-2 for its fifth straight victory, with Misiorowski winning for the eighth time in nine decisions.
• Only Aroldis Chapman's 105.8 mph and 105.7 mph pitches have been tracked faster in MLB history.
• The win keeps the Brewers rolling as one of the league's hottest teams and a major storyline in the celebrity breaking news cycle around baseball's velocity arms race.

What happened when Misiorowski faced the Cubs?

Friday night's series opener belonged to Milwaukee from the first batter. Misiorowski, pitching while fresh, reached peak velocity almost immediately. Fox News noted the stadium scoreboard briefly flashed 105 mph before Statcast confirmed the official reading of 105.5 mph.

It was déjà vu from earlier in June, when Misiorowski set the starter record at 104.5 mph against Phillies slugger Kyle Schwarber. This time, Cubs center fielder Pete Crow-Armstrong was the target in the leadoff spot, taking the 0-2 offering and fouling it off down the third baseline.

Where does Misiorowski rank among the fastest pitches ever?

According to USA Today, Misiorowski now shares the No. 3 spot on the all-time velocity list in the 18-year pitch-tracking era. He joins Angels reliever Ben Joyce, who hit 105.5 mph on Sept. 3, 2024.

Above them sit only two pitches from Aroldis Chapman: 105.8 mph with the Cincinnati Reds on Sept. 24, 2010, and 105.7 mph with the New York Yankees on July 18, 2016. Misiorowski is now firmly established as the hardest-throwing starting pitcher in major league history, sitting just 0.3 mph shy of Chapman's all-time record.

Why does this matter for the MLB standings?

Velocity headlines grab attention, but the box score still shapes the pennant race. Misiorowski's outing pushed the Brewers to a 6-2 win and extended their winning streak to five games. He improved to eight victories in his last nine decisions, giving Milwaukee reliable front-line pitching down the stretch.

For fans tracking the MLB standings, Milwaukee's winning streak and dominant starting pitching make the Brewers one of the teams to watch in the National League. Misiorowski downplayed the radar-gun drama after the game, telling reporters the milestone was simply "cool," but his arm is rewriting record books while his team keeps climbing.

Can Misiorowski break Chapman's all-time record?

OutKick suggested the record books may need to be written in pencil, because this probably will not be the last time Misiorowski pushes the limit. He raised his own starter record from 104.5 mph to 105.5 mph in just weeks this June.

At 24, with a starter's workload and a history of throwing multiple pitches north of 103 and even 104 mph in the same at-bat, he appears positioned to challenge Chapman's 105.8 mph mark. Friday's heater against the Cubs secured his place among baseball's most unhittable arms — and the rest of the league will be watching.