He won 21 and lost nine in that sensational 1968 season, while leading the league with an **earned run average** of 1.60 and in shutouts with nine. |

Although he generally does quite well, many technical terms are unexplained, including marginal revenue and marginal cost, slugging average, and **earned run average**. |

Whether by batting average, **earned run average** or wins and losses, baseball's numbers tell us who's hot and who's not. |

So far in '07, Beckett's walks are down some, his home runs allowed are down a lot and so is his **earned run average**. |

Foster compiled an **earned run average** of just over 1, walked only 12 batters all season and struck out 52 to earn the selection of Hometeam Magazine Player of the Year. |

In Pac-12 statistics, Keudell ranks first in runners picked off, third in wins and fourth in both **earned run average** and innings pitched. |