Milwaukee Brewers pitcher Jacob Misiorowski threw fastballs exceeding 103 mph during a spring-training game on Wednesday [1].
This display of velocity highlights the Brewers' developing pitching depth and the rare combination of power and movement Misiorowski brings to the mound. Such speeds are uncommon in professional baseball and place the right-hander among the fastest pitchers in the league.
During the matchup against the San Diego Padres in Milwaukee, Wisconsin, Misiorowski recorded a series of high-velocity pitches [1]. His fastball was clocked at 102.6 mph, 102.9 mph, and peaked at 103.3 mph [1]. These pitches were thrown as he faced Padres outfielder Jackson Merrill [1].
Beyond the fastball, Misiorowski demonstrated versatility with his breaking ball. He recorded a slider at 97 mph [1]. The combination of a triple-digit fastball and a high-velocity slider creates a challenging environment for opposing hitters, a dynamic that was evident during the spring-training appearance.
Despite the high-velocity performance, Misiorowski did not finish the game. He exited the contest before the eighth inning [1]. The timing of his exit is typical for spring-training rotations, where teams prioritize pitch counts and player health over game results.
Misiorowski continues to draw attention for his ability to consistently light up the radar gun. The Brewers are utilizing these exhibition games to calibrate his control while maintaining the maximum velocity that defines his game [1].
“Fastball speed recorded at 103.3 mph”
Misiorowski's ability to maintain velocity above 100 mph while throwing a slider near 97 mph places him in an elite tier of physical talent. While spring-training exits are standard for workload management, his consistent performance against Major League hitters like Jackson Merrill suggests he is nearing readiness for a high-leverage role in the Brewers' rotation.
