The Fastest Pitches in MLB History: Relievers Dominate the Record Books
Aroldis Chapman holds the official MLB record for the fastest pitch at 105.1 mph, thrown in 2010, according to MLB’s official tracking data. This velocity, recorded by the league’s StatCast system, remains unchallenged, though several relievers have come close. Jordan Hicks, for instance, threw a 105 mph pitch in 2022, as reported by ESPN, while Kyle Farnsworth and David Robertson have also registered sub-105 mph fastballs in their careers.
The Reliever Advantage: Why Fastest Pitches Are Rarely Thrown by Starters
Relievers often dominate the fastest-pitch list due to their specialized roles. Unlike starting pitchers, who build up velocity over multiple innings, relievers frequently throw maximum effort in short bursts. This approach allows them to achieve higher speeds, as noted by Baseball Reference. For example, Chapman’s 105.1 mph pitch occurred during a relief appearance, not a starting role.
Verified Records and the Limits of Human Speed
The fastest recorded pitch in MLB history remains Chapman’s 2010 fastball, which was clocked at 105.1 mph by the league’s radar guns. This mark has not been surpassed, despite advancements in training and equipment. Other notable pitches include Hicks’ 105 mph fastball in 2022 and Farnsworth’s 104.8 mph pitch in 2006, according to ESPN. These speeds highlight the physical limits of human performance, as pitchers approach the upper bounds of what is biomechanically possible.
How Velocity Impacts the Game
High-velocity pitches give relievers a significant edge, particularly in high-leverage situations. Teams often deploy these pitchers to shut down opposing lineups, as seen with Chapman’s dominance in the 2010s. However, the focus on velocity has sparked debates about long-term arm health, with experts like Dr. James Andrews emphasizing the risks of overuse.
Comparing Relievers and Starters: A Statistical Breakdown
While relievers hold the fastest-pitch records, starters occasionally reach similar speeds. For example, Gerrit Cole has thrown 100+ mph fastballs in starts, but his career average remains lower than that of top relievers. According to Baseball Savant, the average fastball velocity for relievers in 2023 was 93.2 mph, compared to 91.8 mph for starters. This gap underscores the role of specialization in maximizing speed.
What’s Next for MLB Pitching Velocity?
As training methods evolve, the pursuit of higher velocities will likely continue. However, the 105 mph barrier remains a significant hurdle. Pitchers like Shohei Ohtani and Aaron Nola have shown that control and movement can compensate for slightly lower velocities, suggesting a potential shift in how teams value pitching profiles. For now, Chapman’s record stands as a testament to the peak of human athleticism in baseball.