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keisanHigh-precision calculations for everyday life and work

Real Pitcher Ability (RPA)

Author: KBTITExecutions: 3238

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This is a pitching metric I came up with in 5 seconds. Give it a try just for fun.
RPA is an acronym derived from a loose English translation of the "Real Pitcher's Ability Index."
The default value is roughly based on Ohtani's stats.
Since this (presumably) represents pure pitching ability, you can use stats from recreational baseball games to compare them with those of professional players.
Average pitch speed for fastballs
km/h
Number of pitch types
Varieties*Pitch types accounting for 3% or more of total pitches
Strike Rate
%
Pitches per inning
Sphere
RPA 
The formula is ((average fastball velocity)^2) x ((number of pitch types)^0.5) x (strike rate/100) / (pitches per inning * 100).
It represents the ratio of three pitcher factors—which are not influenced by batters—to pitching efficiency.It places slightly more emphasis on the average fastball velocity. Due to the nature of the formula, this metric is disadvantageous for pitchers with a strikeout-oriented pitching style.
Presumably, a score of 14 or higher is the minimum standard (among professional players), 16 or higher is passing, 19 or higher is excellent, and 22 or higher is outstanding.

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