What Actually Separates a 95 mph Pitcher?

When families walk into KPI, one of the most common questions we hear is, “What do the hardest throwers do differently?” It’s a great question, but the answer is rarely as simple as “they’re stronger.” Strength, power, and athleticism all matter, but after evaluating pitchers on our Newtforce Mound, we’ve found that the biggest differences between velocity groups may not come from producing dramatically more force. Instead, the differences appear to be related to how long force is produced, how efficiently it’s transferred, and how well the body moves through key positions during the delivery.

Before diving into the data, it’s important to understand what this article is and what it isn’t. These findings come from our internal athlete database and represent observational trends, not proof of cause and effect. The highest velocity group also includes only five pitchers, so these observations should be viewed as coaching insights that generate better questions rather than absolute answers.

Our Athlete Database

The data includes pitchers in the following velocity groups:

– 95+ mph (n=5)
– 92 to 94 mph (n=11)
– 90 to 92 mph (n=13)
– 88 to 90 mph (n=9)
– 85 to 88 mph (n=30)
– 80 to 85 mph (n=32)
– Under 80 mph (n=12)

Each athlete completed a KPI Pitching Assessment using our Newtforce Mound, which measures how forces are produced and transferred throughout the pitching delivery. Rather than focusing on one perfect number, we’re interested in identifying patterns that appear across different levels of velocity.

Finding #1: Elite Pitchers Produce Force for Longer

One of the clearest differences we found involved Acceleration Impulse. The 95+ mph group averaged 0.30 seconds, while most other groups fell between 0.26 and 0.27 seconds. At first glance, a difference of a few hundredths of a second may not seem significant, but pitching is a game of small margins. From a performance coaching perspective, this suggests higher velocity pitchers may not simply “push harder.” Instead, they appear to stay connected to the ground and continue producing force for a longer period before the baseball is released.

Think about pushing a heavy sled. A quick shove moves it a little, while a strong, continuous push keeps the sled accelerating. Pitching may work in a similar way. Sustaining force production could be just as important as increasing the amount of force itself.

Finding #2: The Balance Between Acceleration and Deceleration Matters

Another metric that stood out was Impulse Ratio, which compares acceleration and deceleration characteristics. The averages were 1.32 for the 95+ mph group, 1.14 for the 92 to 94 mph group, 1.27 for the 90 to 92 mph group, and 1.19 to 1.24 for the remaining groups. While this metric deserves additional study, it suggests that higher velocity pitchers may spend relatively more of their movement producing force than slowing it down. Again, this doesn’t necessarily mean they’re stronger. It may simply mean they’re using their movement more efficiently.

Finding #3: Faster Transitions May Be Important

One of the most noticeable differences involved Clawback Time. The 95+ mph group averaged 0.15 seconds, while most other groups averaged between 0.23 and 0.26 seconds. Although more research is needed to fully understand this measurement, it may reflect how efficiently an athlete transitions through an important phase of the delivery. As performance coaches, we spend a great deal of time improving movement quality rather than simply chasing strength numbers, and this finding supports that philosophy. Sometimes improving efficiency creates bigger performance gains than simply getting stronger.

Finding #4: Bigger Back Leg Force Isn’t the Whole Story

Many athletes believe throwing harder starts with creating as much force as possible into the back leg, but our data suggests the story is more nuanced. The YZ Back Score remained relatively similar across velocity groups: 2.25 for the 95+ mph group, 2.34 for the 92 to 94 mph group, 2.33 for the 90 to 92 mph group, and approximately 2.20 for the 85 to 90 mph groups. If elite pitchers aren’t producing dramatically larger back leg forces, then the difference may come down to when and how that force is applied rather than the absolute amount. For players, that’s encouraging because it means improving movement quality and sequencing may be more impactful than simply trying to create bigger force numbers.

Finding #5: Stride Length Isn’t the Magic Answer

Stride Ratio also remained remarkably consistent across nearly every velocity group, with most pitchers landing between 88% and 93%. This reinforces something we discuss during evaluations at KPI: there isn’t one perfect stride length. Trying to artificially lengthen your stride because a professional pitcher does it can actually disrupt timing and efficiency. Instead, athletes should develop a stride that complements their own movement strategy.

Finding #6: Efficient Force Transfer May Play a Bigger Role

Another interesting trend involved YZ Transfer Back. The 95+ mph group averaged 0.11 seconds, while most other pitchers averaged between 0.07 and 0.09 seconds. This may suggest that elite pitchers spend more time effectively transferring force from the ground through the body before releasing the baseball. That doesn’t necessarily mean they’re moving slower. It may simply mean they’re using the time available more effectively. Efficient energy transfer has long been considered a hallmark of elite throwers, and this observation aligns with that idea.

What Does This Mean for Players?

If you’re trying to throw harder, the takeaway isn’t to chase one force plate number. Instead, focus on becoming a more efficient mover by developing strength that transfers to athletic movement, improving sequencing and coordination, learning to stay connected to the ground while producing force, and refining movement patterns that allow force to move efficiently through the body. Velocity is the result of many systems working together, and the force plate simply gives us another way to understand how those systems interact.

Why We Use the Newtforce Mound at KPI

At KPI, our goal isn’t to chase flashy numbers. We use the Newtforce Mound because it gives us objective information about how an athlete interacts with the ground throughout the pitching delivery. Combined with video analysis, strength testing, mobility assessments, and a complete performance evaluation, this information helps us build individualized development plans rather than relying on one size fits all coaching. Every athlete moves differently. The goal isn’t to copy a professional pitcher. It’s to understand how your body creates and transfers force so training can target the areas that matter most.

The Bigger Picture

Perhaps the biggest takeaway from this analysis is that throwing harder doesn’t appear to be explained by one magic metric. Instead, the highest velocity pitchers in our database tended to produce force for longer, move through key transitions more efficiently, transfer force effectively, and demonstrate better overall sequencing rather than dramatically larger force outputs.

For players and parents, that’s an encouraging message. Improving velocity isn’t always about getting bigger or stronger. It may be just as much about learning to move more efficiently and applying force at the right time throughout the delivery.

As our athlete database continues to grow, we’ll continue studying these trends to better understand what separates different levels of performance. While these observations shouldn’t be interpreted as cause and effect, they provide valuable insight into the movement qualities that may contribute to higher velocity and help us ask better coaching questions for every athlete who steps onto the Newtforce Mound at KPI.