Defense-Independent Component ERA

Last modified by

on

Aug 2, 2023, 6:49:30 PM

Created by

on

Jul 13, 2016, 5:30:08 PM

D I C E = 3.00 + \frac{13 \cdot H R + 3 (B B + H B P) - 2 \cdot K}{I P}

$DICE = 3.00+(13* HR +3( BB + HBP )-2* K )/( IP )$

(H R) number of home runs

$(HR)"number of home runs"$

(B B) number of walks

$(BB)"number of walks"$

(H B P) number of hit batters

$(HBP)"number of hit batters"$

(K) number of strikeouts

$(K)"number of strikeouts"$

(I P) number of innings pitched

$(IP)"number of innings pitched"$

The Math / Science

The Defense-Independent Component ERA in baseball is a defense-independent pitching statistic to measure a pitcher's effectiveness based only on statistics that do not involve fielders (except the catcher). These include home runs allowed, strikeouts, hit batters, walks, and, more recently, fly ball percentage, ground ball percentage, and (to much a lesser extent) line drive percentage. By focusing on these statistics, which the pitcher has almost total control over, and ignoring what happens once a ball is put in play, which the pitcher has little control over, DIPS can offer a clearer picture of the pitcher's true ability.
The Defense-Independent Component ERA formula was created by Clay Dreslough:

$D I C E = 3.00 + \frac{13 H R + 3 (B B + H B P) - 2 K}{I P}$ $DICE=3.00+(13HR+3(BB+HBP)-2K)/(IP)$

where:

$H R$ $HR$ = number of home runs (hits on which the batter successfully touched all four bases, without the contribution of a fielding error)
$B B$ $BB$ = number of walks (also called base on balls, times pitching four balls, allowing batter to take first base)
$H B P$ $HBP$ = number of hit batters (times hit a batter with pitch, allowing runner to advance to first base)
$K$ $K$ = number of strikeouts (number of batters who receive strike three)
$I P$ $IP$ = number of innings pitched (number of outs a team gets while a pitcher is pitching divided by three)

Baseball Stats Calculators

Baseball Base Separation:

References

Wikipedia (https://en.wikipedia.org/wiki/Defense_independent_pitching_statistics#Alternate_formulae and https://en.wikipedia.org/wiki/Baseball_statistics)

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Defense-Independent Component ERA

The Math / Science

Baseball Stats Calculators

References

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