MLB Swing Decision Model - Statcast

Who has the
best eye in baseball?

Every pitch is a decision. Good Eye grades each swing and take by the run value of the call - rewarding hitters who attack strikes, lay off balls, and don't chase the ones that never had a chance. It measures the decision, not the contact.

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DecRuns+/100 - the eye score
Runs better (or worse) than an average hitter's swing decisions, per 100 pitches. Positive is good, negative is below average, 0 is exactly average.
Chase %
How often he swings at pitches outside the strike zone. Lower is more disciplined.
Z-Swing %
How often he swings at pitches inside the zone. Higher means he attacks hittable pitches.
xwOBA
Expected production on contact - a results stat. Eye is about decisions; this is about outcomes. The two don't always agree.
The splits (vs Fastballs, Breaking, etc.)
The same eye score, but only counting that kind of pitch - or only pitchers of that hand.
Pitches
How many pitches he's seen. More pitches = more reliable number. Use the slider to set a minimum.
100+
Hitter Eye (+/100) ▾ Chase % Z-Swing % xwOBA Pitches

The gap between decision quality and results (xwOBA). A hitter can earn the right pitches and still not produce - or chase everything and rake anyway. These are the widest gaps in each direction among qualified hitters.

Riding results

Below-average eye, above-average results - bat is carrying them

Due to bounce back

Above-average eye, lagging results - process says buy low