Statistical Question

Question
In calculating ERA for a high school pitcher playing in seven-inning games I am assuming that earned runs divided by innings should be multiplied by seven instead of nine.  Correct?

Thank you.

Ken

Answer
Ken,

I think pretty much everyone still uses nine innings.  ERA using nine is so ingrained that I don't think people would understand if someone used seven as the divisor.

Whenever they show a high school kids stats when they are drafted, they use nine inning ERA.

Hope this helps!

Brian