Milwaukee Brewers pitcher Jacob Misiorowski threw a fastball clocked at up to 105.5 mph on Friday night, June 25, 2026 [1, 4].

The feat establishes a new velocity benchmark for the Brewers organization and highlights the increasing prevalence of elite speed in professional pitching.

Misiorowski, a 24-year-old right-handed pitcher standing 6 feet 7 inches tall [1, 5, 6], reached the milestone during a game that saw varying reports regarding the venue and opponent. Some reports place the event at Truist Park in Atlanta against the Braves, while others state it occurred during a series in Milwaukee against the Chicago Cubs [1, 4].

There is a discrepancy among sources regarding the exact speed of the pitch. The New York Times reported the fastball at 105.5 mph [1], while Yahoo Sports recorded it at 104.5 mph [2]. A third report from the Associated Press via MSN listed the velocity at 104.2 mph [3].

Despite the differing numbers, the performance solidified Misiorowski's reputation as one of the hardest throwers in the league. The pitcher's ability to consistently push the boundaries of human speed on the mound has drawn significant attention from scouts, analysts, and his own coaching staff.

Pat Murphy said, "He was great" [3].

The Brewers have focused on integrating Misiorowski's power into their rotation as they seek to maximize the impact of his high-velocity approach. The 24-year-old's physical profile and arm strength make him a primary asset for the team's pitching strategy [5].

Jacob Misiorowski threw a fastball clocked at up to 105.5 mph

The emergence of 105-mph velocity represents a rare ceiling in Major League Baseball, placing Misiorowski in an elite tier of pitchers. While the discrepancy in reporting the exact speed and location suggests some initial confusion in the live-game data, the consensus confirms a record-breaking effort for the Brewers. This trend toward extreme velocity often forces opposing hitters to adjust their timing, though it can also increase the physical strain on the pitcher's arm.