Pitching ERA Calculation for Softball (7innings)

[RickM]

The ERA reported for a pitcher in a game where 1 earned run was scored in a 7 inning game should be 1.0. The stats in iscore reported the ERA as 1.29. It appears that the calculation is done for a 9 inning game.....1 ER/ 7 innings x 9 innings /game = 1.286. I set the options to 7 innings in the game before the game started and checked the game settings afterwards and is shows 7 innings. Is there something I need to do differently to get the ERA calculations to reflect the 7 inning game?

[FTMSupport]

There is a separate stat calculated called ERG that is earned runs per game. ERA is by definition based on 9 innings, but ERG will be based on the number of innings the games are set to.

[davidlimbaugh]

Not a good answer. Runs per game is not a good stat. In high school baseball, we need ERA to be based on 7 innings and not 9. Little league coaches need ERA to be based on 6 innings and not 9.

[FTMSupport]

We have been through this several times in the forum.

ERA is not a loosely defined stat... it is defined as Earned Runs per 9 innings pitched. The league / game length does not matter.

The ERG stat is not "runs per game". It is exactly like the ERA statistic, but is based on YOUR scheduled number of innings. If you want it to be based on 7 innings, set your game lengths to 7 innings and you will get an ERG based on 7 innings. If you want it to be based on 6 innings, set your game lengths to 6 innings and you will get an ERG based on 6 innings.

Game length does not change the definition of ERA. ERG gives the flexibility you are looking for.

A standardized ERA stats allows you to compare effectiveness of pitchers across leagues regardless of the number of innings played. As an example, if someone pitching in a 6 inning league said they had an ERA of 6, and someone in a 9 inning league said they had an ERA of 6, it should mean the exact same thing.


Here are some references stating the definition of ERA:


http://en.wikipedia.org/wiki/Earned_run_average" onclick="window.open(this.href);return false; : "In baseball statistics, earned run average (ERA) is the mean of earned runs given up by a pitcher per nine innings pitched."

http://baseball.suite101.com/article.cf ... _explained" onclick="window.open(this.href);return false; : "ERA means "Earned Run Average," which measures the number of earned runs surrendered by a pitcher per every nine innings pitched"

http://sports.espn.go.com/mlb/news/stor ... s/glossary" onclick="window.open(this.href);return false; : "Earned-run average (ER times 9) divided by IP"

[davidlimbaugh]

All of these definitions are based on the MLB. In high school baseball, ERA is based on 7 innings - honest!

for an additional $20.00 'donation' could I get an option of 'ERA Based on (_) innings?' ? I'll throw in another $5.00 if I could get more screen landscape to put in homeruns. Not much room now for HRs to straight away center. Perhaps move the fences in just a tad? LOL!!!

Thanks for all ya do - this is a great APP! I had more fun doing my first game (a 14 inning affair by the way - a scrimmage - with some loose following of the batting order that your app made easy to handle) than I did with the the $200 app I have been using on my palm centro!

[FTMSupport]

Just to state it one more time... our ERG calculation IS ERA based on whatever number of innings you want. For high school games, set your number of innings for the game to 7, and ERG is exactly the "ERA" for 7 innings.

[davidlimbaugh]

Just to state it one more time... our ERG calculation IS ERA based on whatever number of innings you want. For high school games, set your number of innings for the game to 7, and ERG is exactly the "ERA" for 7 innings.

I understand - just 'begging' I just realized that since ya do a great thing and give me a .csv of the data I can import into excel I can 'fake it' by just changing the label of the column to ERA

Thanks again!

[David_T]

What about Softball where scheduled games are 7?

- From the NFCA (National Fastpitch Coaches Assocition Scoring Guide)

7. Earned run average (ERA) = (earned runs / innings pitched) x 7 or (earned runs
x 21) / out recorded)

[jcbeckman]

Oy. FTM is using the MLB definition. For any other, like 7 inning softball, just use ERG, forget the ERA stat, and rename ERG to ERA wherever you see it. I personally can't see why this is a problem for folks.

[David_T]

Oy. FTM is using the MLB definition. For any other, like 7 inning softball, just use ERG, forget the ERA stat, and rename ERG to ERA wherever you see it. I personally can't see why this is a problem for folks.

marketed as a softball app --> correct data entry --> correct softball rules applied --> equals correct stats

marketed as a MLB only app --> correct data entry --> MLB rules applied --> I would expect incorrect stats and start the data manipulation dance with a smile on my face.

If expecting stat integrity based on correct data entry for an app advertised to support softball is seen as having a "problem" then I guess I expected too much.