Pitch velocity increase in baseball driven by training, biomechanics and spring training development

PHOENIX – On back fields across Arizona’s spring training camps, the pop of a catcher’s mitt sounds a little different than it did even a decade ago. And the radar guns positioned behind home plate explain why.

Clocking a fastball at 95 mph is no longer rare. For many pitchers, it is expected. But as pitchers continue to throw harder, the game is also grappling with how to balance that pursuit of velocity with keeping arms healthy, especially for younger players.

Baseball is in what many around the game call the “velocity era,” when throwing harder has become one of the most important tools a pitcher can have. From major league spring training to high school fields, the push for velocity is changing how pitchers train, develop and manage their arms.

At sophisticated training facilities like Driveline Baseball, throwing trainer Daulton Barry said the rise in velocity is not an accident. It is the result of better data, better technology and a better understanding of how the body produces force.

“We’ve gotten significantly better at tracking the things that matter,” Barry said. “I think with biomechanics, places like Driveline and other private facilities are becoming more aware of the strategies and training modalities that are going to make it easier and better and identify the things that matter, especially when it comes to biomechanics.” 

That data has also changed how organizations evaluate performance. Velocity, Barry said, gives pitchers more margin for error than ever before. Front offices now prioritize raw arm speed and pitch power as foundational traits, often building command and refinement around them later in development.

“The second thing is that teams have started to realize, like when guys throw harder, it is significantly better in terms of their performance,” Barry said. “If you throw a hundred mile per hour fastball, even if the shape is really poor, if you don’t have the greatest command of it, you can typically get away with throwing that pitch middle-middle.” 

Much of that velocity development happens in the offseason, but the results often show up during spring training, when pitchers arrive in camp throwing harder than they did the previous season. Barry said that jump is common for players who spend the offseason in structured training programs.

“Most of the time it’s pretty huge,” Barry said. “One of our guys that’s in the big leagues right now averaged last year at 90 miles an hour on his heater. This year in spring training he is averaging over 92 and it’s topping out at 93.”

Advances in motion capture, high-speed cameras and pitch-tracking systems have accelerated that development. Instead of waiting weeks to see if a mechanical change works, pitchers can now get instant feedback on velocity, arm speed and movement patterns.

“The measurables are awesome because they give you that really, really quick feedback,” Barry said. “You’re able to throw a pitch, instantly get that feedback and make those adjustments in real time.”

But as pitchers throw harder, the stress placed on the body increases. Tyler Goldstein, a biomechanist with the Miami Marlins, said the pursuit of velocity always comes with a balance between performance and health.

“As we chase velocity, we are putting these pitchers at a higher risk, but we are also seeing an improvement in velocity at a younger age,” Goldstein said. “I think ultimately it’s a risk and reward.”

Goldstein said advances in biomechanics have helped organizations move toward individualized training programs, rather than using the same mechanical model for every pitcher.

While that technology is common at the professional level, the effects of the velocity boom are becoming visible much earlier in a player’s career. At Basha High School in Chandler, coach Eric Albright said many players now train year-round and often work with outside training programs focused on velocity development.

During the summer, Albright said, managing workload becomes one of the biggest challenges for high school coaches.

“They’re playing with their club teams, and the hard part is making sure they’re not getting overused,” Albright said.

Albright said communication and individualized training plans are key, especially as players try to throw harder to attract college recruiters and professional scouts.

“Everybody’s different, every kid is different, some respond better, some need more time for rest,” Albright said. “So it’s more of a feel and also trusting your players.” 

To build durability, Albright’s program focuses on conditioning, strength training and gradually increasing throwing workloads throughout the year.

“We start really light early, and then we just work them up,” Albright said. 

For pitchers, the push for velocity is not just a trend – it is part of the daily routine. Former Basha High School pitcher Justin Chambers, now a minor league prospect who has pitched in the Arizona Fall League, said modern pitchers are constantly working to improve every part of their arsenal.

“You’re always trying to get better, whether that’s velocity, command or learning a new pitch,” Chambers said. “You’re always trying to improve something.”

That mindset reflects the modern development system described by trainers and biomechanists, where pitchers spend the offseason refining mechanics and building strength before arriving at spring training ready to compete for roster spots.

“Being here, you’re facing the best hitters every day, so you have to trust your stuff and trust the work you put in,” Chambers said.

For many pitchers, that work happens long before spring training games begin, as offseason training programs and throwing programs are designed to build velocity gradually while maintaining arm health.

From biomechanics labs to high school weight rooms, the modern pitcher is developed differently than pitchers were even 10 years ago. Technology has made it easier to measure performance, training programs have become more specialized and the demand for velocity continues to grow.

The radar gun has always been part of baseball, but now it is shaping how the sport develops its pitchers – from spring training back fields to high school bullpens.

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