Watch Brewers' Jacob Misiorowski Make MLB History with Fastest Pitch Ever Thrown By Starter in Video

Milwaukee Brewers starting pitcher Jacob Misiorowski made history against the Philadelphia Phillies on Friday night.

Misiorowski threw a pitch that reached 104.5 miles per hour in the first inning of the game, setting a new record for the fastest pitch by a starter in MLB history.

He broke his own record of 103.7 mph, which was set during Milwaukee's 7-1 win over the Colorado Rockies on Saturday.

Misiorowski entered Friday's action with the top 10 fastest pitches thrown by a starter this season (h/t MLB.com's Anthony Castrovince).

The average velocity of his four-seam fastball is also the highest among all starting pitchers in 2026 at 100.0 mph, via Statcast.

After Misiorowski earned an All-Star nod as a rookie during his 2025 campaign, he's looked even sharper on the mound this year.

In his first 13 starts of the season, he posted a 7-2 record to go along with a 1.50 ERA and 0.808 WHIP. He also racked up a league-leading 116 strikeouts compared to 22 walks.

The Brewers held a 41-25 record leading up to Friday's matchup with Philadelphia, sitting atop the National League Central standings.