# Calculate earned run average

To calculate earned run average (ERA), a baseball player, simply use the following formula:

Earned run average = (number of tracks earned × 9) / (number of launched sleeves)

The formula above only applies to the polls and it is used to determine how good a pitcher is.

The formula is used to determine how many runs that a launcher allows in a baseball game.

The lower this average, better the Launcher is to not let runs in the game

Pitchers usually practice many retain this number as low as possible.

In calculating this average, we tour usually answers to two decimal places

Example # 1:

A baseball player had the following performance:

Allowed 4 tracks

15 sleeves launched

Earned run average = (number of tracks earned × 9) / (number of launched sleeves)

Earned run average = (4 × 9) / (15)

Earned run average = (36) / (15)

Earned run average = 2.4

After the response to two decimal places, we have earned run average = 2.40

Example # 2:

A baseball player had the following performance:

Allowed 7 tracks

34 sleeves launched

Earned run average = (number of tracks earned × 9) / (number of launched sleeves)

Earned run average = (7 × 9) / (34)

Earned run average = (63) / (34)

Earned run average = 1.852941

After the response to two decimal places, we have earned run average = 1.85

Example # 3:

A baseball player had the following performance:

Allowed 5 tracks

32 sleeves launched

Earned run average = (number of tracks earned × 9) / (number of launched sleeves)

Earned run average = (5 × 9) / (32)

Earned run average = (45) / (32)

Earned run average = 1.40625

After the response to two decimal places, we have earned run average = 1.41

If you’re a baseball coach, you can choose the player in example # 3, because the average is lower.

However, no one was up to this power get to 1.41 earned run average. The era by the player in example # 2 is close to what best players of all time have been able to respond to the