When Juan Soto takes a borderline pitch for ball four, it's not just good fortune or a missed call—it's the culmination of an elite skill that's revolutionizing how we value hitters in baseball.
Image credits: MLB
While exit velocity and launch angle have dominated the Statcast era, a quieter revolution has been taking place: the rising value of swing decisions. Today's most valuable hitters aren't just crushing pitches—they're choosing the right ones to swing at.
The Discipline Divide
In 2023, MLB hitters who chased pitches outside the zone less than 25% of the time produced an average wOBA of .360—equivalent to the offensive production of Aaron Judge. Meanwhile, hitters who chased more than 35% of the time averaged just a .300 wOBA—closer to a league-average shortstop.
That's a massive gap, and teams are taking notice.
"The ability to make good decisions in milliseconds separates great hitters from good ones," says one MLB hitting coach who requested anonymity. "Power is still king, but if you can't identify pitches, that power becomes theoretical pretty quickly."
More Than Just Taking Walks
The discipline revolution isn't about being passive—it's about being selective.
Take, for example, the contrast between Juan Soto and Joey Gallo in their 2023 seasons:
Key Insights:
Soto and Gallo swing at strikes at nearly identical rates
Gallo actually has better raw power metrics (exit velocity, hard hit %)
The dramatic difference is in chase rate - Soto swings at 11.7% fewer pitches outside the zone
This discipline creates a massive 38-run swing in Swing/Take value between the two players
The result is Soto's wOBA is over 100 points higher despite lower raw power numbers
This selective approach creates a cascade of benefits:
Better counts: Disciplined hitters force pitchers to throw strikes
Harder contact: Swinging at better pitches increases quality of contact
Mental edge: Hitters who control the zone control the at-bat
The Swing/Take Revolution
Statcast's "Swing/Take Run Value" has emerged as one of baseball's most revealing metrics. It measures how much value a player creates through their decision to swing or take on every pitch they see.
Here are 2023's leaders in Swing/Take Run Value:
Juan Soto: +31 runs
Aaron Judge: +28 runs
Freddie Freeman: +26 runs
Yordan Alvarez: +25 runs
Matt Olson: +24 runs
Notice something? These aren't just good hitters—they're MVP candidates.
"What's remarkable is the consistency," notes baseball analyst Sarah Langs. "The same names appear at the top of these leaderboards year after year, which indicates this is a true skill rather than random variation."
Case Study: Steven Kwan's Elite Eye
When Cleveland's Steven Kwan posted a 9.0% chase rate in his 2022 rookie season, it wasn't just impressive—it was historic. The league average hovers around 28.5%.
What makes Kwan's approach so special? Let's break down his performance against sliders:
League average chase rate on sliders: 36.2%
Kwan's chase rate on sliders: 11.7%
Kwan's wOBA on sliders: .331 (well above league average)
By refusing to chase breaking balls off the plate, Kwan forces pitchers to throw their secondary pitches for strikes—something many simply cannot do consistently.
Even more impressive, Kwan's elite discipline isn't just about taking balls—he rarely misses strikes. His zone-contact rate of 94.8% ranks among the best in baseball.
The Organizational Edge
Some organizations have made plate discipline a cornerstone of their development philosophy. The Los Angeles Dodgers and Tampa Bay Rays—two of baseball's most consistently successful franchises—lead the way.
The Dodgers' team chase rate of 26.2% in 2023 was the best in baseball. Not coincidentally, they also led MLB in on-base percentage and runs scored.
"It's an organizational focus from the moment players enter our system," explains a Dodgers player development staffer. "We track and reward good swing decisions in the minor leagues just as much as we do exit velocity or home runs."
This approach has helped the Dodgers extract value from overlooked players. Max Muncy, Justin Turner, and Chris Taylor all improved their chase rates after joining Los Angeles—and all became significantly more productive hitters.
The Next Frontier: Pitch Recognition Training
How are teams developing this skill? Technology is playing a key role.
Virtual reality systems now allow hitters to face thousands of simulated pitches, making decisions without the physical toll of actual batting practice. Eye-tracking technology helps identify where hitters are focusing during pitch recognition.
"The best organizations are treating pitch recognition like a muscle that can be trained," explains Dr. Peter Fadde, who has developed pitch-recognition training methods used by several MLB teams. "A few years ago, the focus was all on swing mechanics. Now it's shifting to the cognitive side."
What This Means for the Future
As teams refine their ability to develop swing decisions, expect to see:
More emphasis on plate discipline in amateur scouting
Higher salaries for disciplined hitters in free agency
Evolving pitcher strategies to counter selective approaches
Development of new metrics to quantify decision quality
The next generation of star hitters may not all look like Aaron Judge. Some might resemble Luis Arraez or Steven Kwan—masters of controlling the zone who produce value without elite power.
So next time you see a hitter take a borderline 3-2 pitch for ball four, don't just see it as good patience. Recognize it as the elite skill it truly is—one that's reshaping how baseball values its hitters.
What do you think? Are teams overvaluing raw power and undervaluing plate discipline? Let me know in the comments below.
Data sourced from Baseball Savant.