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en.wikipedia.org/wiki/Earned_run_average

In baseball statistics, earned run average (ERA) is the mean of earned runs given up by a pitcher per nine innings pitched It is determined by dividing the number of earned runs allowed by the number of innings pitched and multiplying by nine. Runs resulting from defensive errors (including pitchers' defensive errors) are ...

www.miniwebtool.com/era-calculator

About ERA Calculator. The online ERA Calculator is used to calculate the ERA ( earned run average) used in baseball statistics. ERA Definition. In baseball statistics, Earned Run Average, or ERA, is one of the most well known pitching statistics and represents the average number of earned runs a pitcher will give up per ...

www.wikihow.com/Calculate-ERA-(Earned-Run-Average)

How to Calculate ERA (Earned Run Average). ERA (Earned Run Average) is the average number of earned runs a pitcher has allowed per every 9 innings he pitches. This is one of the most useful calculations in baseball, as it shows the...

captaincalculator.com/sports/baseball/era-calculator

How to calculate ERA. In Baseball, earned run average is calculated as follows: \ text{Earned Run Average} = \frac{\text{Earned Runs Each out pitched counts as 1 /3 of an inning. Most professional level games are 9 innings, however softball games are typically 7 innings and little league games are often 6 or 7 innings.

www.freemathhelp.com/earned-run-average.html

Earned Run Average represents the number of earned runs a pitcher will give up per nine-inning game. This quick lesson will show you how to calculate ERA and provide a few example of real pitchers and their ERAs.

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www.homerunweb.com/era.html

How to Calculate Earned Run Average (ERA) As the basic statistical measure of a pitcher, ERA determines the average number of earned runs scored against a pitcher every nine innings; an earned run is...

m.mlb.com/glossary/standard-stats/earned-run-average

Statistician and writer Henry Chadwick gets credit for inventing ERA in the mid-to- late 19th century. His thinking was that win-loss record simply didn't go far enough in determining the mark of a good pitcher. The statistic caught on in the 20th century, when relief pitchers became more prevalent. This made win-loss records ...

www.csgnetwork.com/baseballeracalc.html

This calculator is designed to give the ERA (earned run average) of data entered. The formula is listed below but you may also visit our Baseball Pitching Stats Formulae page. Enter the data that you have in the required data section. Then click on Calculate. You may change a field and re-calculate with other values ...