Tuesday, April 29, 2025

K/9: Why Strikeouts Matter—And Why You Still Need Weak Contact

K/9: Why Strikeouts Matter—And Why You Still Need Weak Contact

Strikeouts are a cornerstone stat for evaluating pitchers, and that’s why K/9 (strikeouts per 9 innings) is so closely watched by scouts and coaches at every level.

Why Are Strikeouts So Highly Valued?

A strikeout is the cleanest, lowest-risk way to record an out.

  • No defense is needed.

  • Minimal chance of errors(dropped 3rd strikes).

  • No runners can advance on a routine strikeout.

For that reason, K/9 is a major indicator of a pitcher’s ability to control the game. The more outs you can create without putting the ball in play, the less you rely on variables like fielding or umpire judgment.

But Here’s the Reality—Even in MLB:

The average big league pitcher posts about 8.3 strikeouts per 9 innings. That means even at the highest level, roughly 19 outs per game are still made by the defense. Only about a third of outs come from strikeouts.

What This Means for Your Development

Yes, strikeouts are premium currency.
But to become a long-lasting, successful starting pitcher, you must also be able to:

  • Create weak contact: Induce ground balls, pop-ups, and soft fly balls to get quick outs and keep your pitch count low.

  • Mix in strikeouts when you need them most: Two strikes, bases loaded, tight situations—this is where the ability to get a K can save innings.

Pitchers who can blend swing-and-miss stuff with the ability to generate weak contact are the ones who stick around in starting rotations and eat up big innings year after year.

How to Use K/9 in Your Game

  • Track your K/9, but make sure you’re not sacrificing efficiency for strikeouts.

  • Work on sequencing and movement to both finish hitters and get early-count weak contact.

  • Know when to go for the strikeout—and when to pitch to contact for an easy out.


Bottom line:
Strikeouts matter because they guarantee an out—no defense, no risk.
But the secret to longevity as a starter is mastering both: miss bats when you need to, and get weak contact the rest of the way.
This does not mean backing off or throwing with minimal effort to just pitch to contact. It means putting your best stuff in the strike zone as often as possible, trusting your pitches, and attacking hitters—whether you’re looking for a strikeout or a weakly hit ball.

In upcoming posts we will talk about how to develop swing and miss and soft contact stuff through pitch development and biomechanics adjustments.

Want to learn how to balance both and pitch like a pro?
Contact me for a private evaluation or pitching session!

jordan@utahrotationalathletetraining.com


No comments:

Post a Comment

The ArmCare Edge: Why Testing Beats Guessing

The ArmCare Edge: Why Testing Beats Guessing In today’s game, every pitcher wants to throw harder, stay healthier, and perform consistently ...