Episode 82

full
Published on:

21st May 2026

The Strike Zone Is Exposing Baseball's Vision Problem

MLB's challenge system isn't just correcting calls — it's measuring human visual performance for the first time.

55%.

That's the overturn rate on challenged ball-strike calls under MLB's new Automated Ball-Strike system. More than half the time a player or catcher challenges a call, the umpire got it wrong.

Before piling on the umpires, consider what that number actually means. Every challenged pitch is, by definition, a borderline pitch — nobody wastes a challenge on a fastball down the middle. These are late-breaking sweepers, disappearing changeups, pitches clipping the lower edge of the zone. The hardest perceptual tasks in the game.

And the overturn rate tells us exactly what vision science has always predicted: even experienced professionals fail on the pitches that most stress the visual system.

This episode walks through why those specific pitches break human visual processing, why ABS just turned the strike zone into a vision lab, and the awkward contradiction at the heart of how baseball currently evaluates its officials. Plus the four-step framework I'd apply to umpire vision evaluation tomorrow if a club asked.

IN THIS EPISODE, YOU'LL LEARN:

  • What the 55% overturn rate actually measures — and why it's not an indictment of umpires
  • Why late-breaking sweepers and low-zone pitches predictably break trajectory prediction and depth perception
  • The contradiction between how MLB evaluates player vision versus umpire vision
  • A four-step framework for sport-specific visual performance evaluation of officials

EPISODE TIMESTAMPS:

  • 00:00 - The 55% Overturn Rate
  • 00:40 - Why Borderline Pitches Break Vision
  • 01:20 - Trajectory Prediction Failure
  • 02:00 - The Low-Zone Depth Problem
  • 02:40 - From Argument To Data Point
  • 03:25 - The Player–Umpire Contradiction
  • 04:05 - The Four-Step Framework
  • 05:15 - The Real Lesson

HELPFUL RESOURCES:

👉 Don't forget to subscribe to Sports Vision Radio so you never miss an episode on the science of peak performance.

All Episodes Previous Episode

Listen for free

Show artwork for Sports Vision Radio

About the Podcast

Sports Vision Radio
Welcome to the podcast where vision meets performance.

Hosted by Dr. Daniel Laby, one of the world’s leading Sports Vision Specialists with over 30 years of experience working with professional, Olympic, and elite athletes across the globe.

This show is designed for athletes, coaches, parents, and performance-minded professionals who want to understand how the visual system, what you see and how your brain processes it, directly impacts your ability to compete at the highest level.

Each episode dives into the science and strategy behind visual performance: from reaction time and focus control, to decision-making speed, visual processing, and beyond. Whether you’re on the field, in the gym, or in the dugout, you’ll learn practical insights and cutting-edge methods to train your eyes and brain to work together, so you can play sharper, smarter, and faster.

Because seeing clearly is just the beginning. This is about vision that wins!

About your host

Profile picture for Daniel Laby

Daniel Laby

Dr. Daniel M. Laby is a pioneer in sports vision science and the author of "Eye of the Champion: Unlocking the Power of Sports Vision for Peak Performance." He has 30+ years experience with elite and Professional athletes and has worked with multiple MLB World Series teams, NBA organizations, Olympic athletes, and numerous professional sports organizations worldwide. He has 8 World Series Championships as well as several other championships. He has been featured in the Wall Sreet Journal (2x), The New York Times, Sports Illustrated as well as NBC news, Fox, and several other radio and television programs. Red Bull made a full length documentary about his work with International Football/Soccer star Trent Alexander-Arnold.