Steamer Projections

An Extra 5 Miles per Hour

These are the run expectancy changes due to 90 and 95 mph pitches (thrown by a right-handed pitcher to a right-handed batter) by location (as seen from the catcher’s point of view).  If you’re a pitcher, blue areas are good and red areas bad.  I was expecting to see that hard-throwers have disproportionately more success (more blue) up in the zone but, just based on these graphs, it seems like the advantage of an extra 5 miles per hour is spread fairly evenly across locations.

 

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