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 recorded as unearned runs and are not used to determine ERA.

Read more about Earned Run Average:  Origins, ERA in Different Decades and Baseball Eras, Sabermetric Treatment of ERA, All-time Career Leaders

Famous quotes containing the words earned, run and/or average:

    “Male God: You’ve earned enough credits to get you into heaven.
    Steve: Oh, thank God.
    Male and Female Gods: You’re welcome.”
    —Blake Edwards (b. 1922)

    “When this yokel comes maundering,
    Whetting his hacker,
    I shall run before him,
    Diffusing the civilest odors
    Out of geraniums and unsmelled flowers.
    It will check him.”
    —Wallace Stevens (1879–1955)

    “If the average citizen is guaranteed equal opportunity in the polling place, he must have equal opportunity in the market place.... The flag and the Constitution stand for democracy and not tyranny, for freedom, not subjection.”
    —Franklin D. Roosevelt (1882–1945)