Batter Swinging or Looking Strike Zone

Batter Start Date
Batter End Date

Compare to another batter. *Optional*

Compare to Start Date
Compare to End Date
Plot Type
Compare to league averages
Regression Amount

Select a valid start and stop dates with all fields filled in or no data will be generated.
Pitch Type (Leave blank for all)
CH, Change-up
CU, Curveball
EP, Ephuus
FA, Fastball
FC, Cut Fastball
FF, 4-Seam Fastball
FS, Split-finger Fastball
FT, 2-Seam Fastball
KC, Knuckle Curve
KN, Knuckleball
SC, Screwball
SI, Sinker
SL, Slider
UN, Unknown


Compare to Another Batter - This function looks at the two batters over the same time frame and set of conditions. Then it subtracts the percentage of pitches swung at by the second hitter from the first. For example, if the Batter swung at a pitch in a zone 40% of the time and the Compare to Another Batter swung at pitches in the same zone 50% of the time, the output for that zone would be -10% (40%-50%).

Compare to League Average - This function works the same as Compare to Another Batter, but instead it compares the selected batter to the league average. Creating the league average is extremely time consuming (hours of processing), so as of right now there is a league average for both right and left handed hitters for both the 2.4 inch and 6 inch scales (4 total league average comparisons).

Regression Amount - This number is the amount of league average values that are added to the players total. At least some value (10 to 30) should be added to each player to make sure that each outputted data point has some values associated with that zone and that a few extreme values do not incorrectly dominate the outputted image.

Scale - Scale may need to be adjusted for a cleaner output. The data is put into subsets and there may not be enough data to have a smooth and/or accurate output. The scales are based on the percentage of pitches swung divided by the total pitches in that part of the plate. The 2.4 inch scale is 15x15 (225 total) outputted data zones and the 6 inch scale is 6 by 6 (36 total) outputted data zones.