How can you calculate ERA?

Question

Im in a fnatasy baseball league and i wanan knwo how you can calculate ERA? Do you know?

Answer 1

It's actually a lot more difficult to do than simply plugging in the (ER*9)/ IP= ERA formula because as the question above you so clearly illustrates you must first have to determine whether or not the run was in fact earned.
Section 10.16 of MLB Rules expains the nuances of it all fairly well

Answer 2

A pitcher's earned run average is the number of runs allowed that are earned runs, not unearned runs (ones that are scored on errors) per 9 innings. So you figure the total runs for a 9 inning game. If he only pitched 3 innings then you would triple the runs scored in those 3 innings to get his era.

Answer 3

The formula for ERA is

(number of earned runs the pitcher has given up) * 9 / (number of innings that he pitched in which he gave up those runs)

You'll commonly see this as ERA = (9 * ER) / IP

where ER = earned runs and IP = innings pitched.

In other words, it's the average number of earned runs the pitcher would give up over nine innings. (ERA = earned run average)

Answer 4

Earn runs given up divided by innings pitched multiplied by 9

Answer 5

(Earned Runs) / (Innings Pitched / 9)