The Fastball Arms Race Might Be Slowing Down

There was a time when a mid-90s fastball turned heads. Now it barely gets a second look. In today’s version of Major League Baseball, velocity is no longer a separator. It is a baseline expectation.

Over the last twenty years, the sport has undergone a dramatic transformation in how pitchers are developed, evaluated, and deployed. Advances in motion capture, pitch-tracking technology, and strength training have made velocity a developmental target rather than a rare trait. Organizations are no longer hoping a pitcher throws hard. They are actively building arms that do.

But as the average fastball continues to hover in the low to mid-90s, there are signs that the steady climb we saw throughout the 2010s may be leveling off. For the first time in the pitch-tracking era, it is worth asking whether the league is approaching a velocity ceiling.

The gains themselves were very real. Since the late 2000s, the average four-seam velocity has jumped several miles per hour league-wide. Pitchers who once topped out at 91 or 92 mph are now sitting comfortably in the mid-90s deep into starts. Even more telling is how frequently pitchers are operating near their top-end velocity. It is not just about throwing hard anymore. It is about sustaining that effort for 90 to 100 pitches every fifth day.

That shift becomes more concerning when you consider the gap between a pitcher’s maximum fastball velocity and their average game speed. Historically, starters paced themselves, saving their highest effort throws for key moments. Now, many are living in that upper range throughout an entire outing. The difference between peak and average velocity has steadily shrunk in recent seasons, suggesting that max effort is becoming the default rather than the exception.

There are obvious benefits to that approach. Velocity remains one of the most projectable tools in player development. A pitcher who throws 97 is going to draw more organizational interest than one who throws 91, even if the latter has better present command. Throwing hard opens doors throughout the minor leagues and often keeps pitchers on the mound in the majors once they arrive.

The downside is that the human arm still has limits. Teams have spent the better part of the last decade investing in technologies designed to squeeze out every possible mile per hour. Weighted-ball programs, high-speed cameras, and biomechanical analysis have become standard across player development systems. Yet every incremental gain in velocity increases the stress placed on the elbow and shoulder. It is no coincidence that the rise in fastball velocity across professional baseball has been accompanied by a similar increase in ligament-related injuries.

Last season, eight teams experienced a decline in average fastball velocity compared to 2024, a subtle but noteworthy shift in a league that has grown accustomed to annual increases. The most significant drop was among the Minnesota Twins, whose staff average dropped from 94.2 mph in 2024 to 93.4 mph in 2025. Other teams whose numbers ticked downward included the Toronto Blue Jays, Arizona Diamondbacks, Houston Astros, Kansas City Royals, Los Angeles Angels, Baltimore Orioles, and Chicago White Sox.

On the other end of the spectrum, four organizations increased their average fastball velocity by more than one mile per hour, led by the Colorado Rockies, Chicago Cubs, Boston Red Sox, and Tampa Bay Rays. These year-over-year changes rarely exist in a vacuum. Staff-wide velocity can fluctuate based on injuries to high-octane arms, midseason trades that reshape a bullpen, offseason free agent additions, or even philosophical shifts in how aggressively pitchers are asked to attack hitters.

In response, organizations appear to be adjusting their priorities. Rather than simply chasing the highest possible radar-gun reading, there is growing interest in optimizing pitch characteristics, such as vertical approach angle, seam-shifted wake, and release-point consistency. Pitchers have shown that deception and movement can be just as effective as pure velocity at missing bats and limiting hard contact.

That strategic shift may help explain why league-wide velocity growth has slowed in recent seasons. Pitchers are still throwing hard, but the developmental emphasis is expanding beyond simply throwing harder. The modern arsenal is becoming more diverse, with sweepers, splitters, and cutters taking on a larger role in place of traditional high-spin four-seam fastballs.

Fatigue factors may also be at play. The pitch clock has shortened recovery time between throws, and the trend toward year-round throwing begins well before pitchers reach the professional ranks. By the time many arms arrive in the majors, they have already accumulated a decade or more of high-effort workloads. Maintaining peak velocity across a six-month season becomes as much a durability challenge as it is a strength one.

All of these point toward a potential inflection point in how pitching evolves moving forward. The next competitive advantage may not belong to the team that develops the hardest throwers, but to the one that identifies the most efficient version of a pitcher’s delivery and arsenal. Finding the optimal blend of velocity, command, and movement could prove more valuable than chasing triple digits.

Velocity has shaped the modern game in undeniable ways. It helped drive strikeout rates to historic highs and reshaped how teams construct pitching staffs. But as the data stabilize, it is increasingly plausible that the sport has reached close to its upper limit.

The radar gun may never go backwards in any meaningful way, but it might not keep climbing either. If that is the case, the future of pitching could belong to those who know when not to reach back for a little extra.

Has fastball velocity reached its peak? Leave a comment and start the discussion.