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In baseball statistics, earned run average (ERA) is the average of earned runs allowed by a pitcher per nine innings pitched (i.e. the traditional length of a game). It is determined by dividing the number of earned runs allowed by the number of innings pitched and multiplying by nine.
Earned run average represents the number of earned runs a pitcher allows per nine innings -- with earned runs being any runs that scored without the aid of an error or a passed ball. ERA is the most commonly accepted statistical tool for evaluating pitchers. The formula for finding ERA is: 9 x earned runs / innings pitched.
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Penyebabnya adalah pelempar melemparkan 4 ball (lemparan yang tidak masuk zona pukulan) atau bola lemparannya mengenai pemukul. 2. Pahami aturan-aturannya. Untuk menghitung ERA yang akurat, Anda harus memiliki angka-angka yang akurat. Anda harus mengetahui setiap earned run yang terjadi.
Bisbol (bahasa Inggris: baseball) atau bola pangkalan adalah olahraga yang dimainkan dua tim. Olahraga ini mirip dengan permainan bola kasti . Pelempar ( pitcher ) dari tim yang melempar berusaha melempar bola yang disebut bola bisbol , sedangkan pemain ( batter ) dari tim yang memukul berusaha memukul bola dengan menggunakan tongkat pemukul ...
t. e. The history of baseball can be broken down into various aspects: by era, by locale, by organizational-type, game evolution, as well as by political and cultural influence. The game evolved from older bat-and-ball games already being played in England by the mid-18th century.
v. t. e. The history of baseball in the United States dates to the 19th century, when boys and amateur enthusiasts played a baseball -like game by their own informal rules using homemade equipment. The popularity of the sport grew and amateur men's ball clubs were formed in the 1830–50s.
ERA, or Earned Run Average, is a widely used pitching statistic that measures a pitcher's effectiveness in preventing runs from scoring. It represents the average number of earned runs a pitcher allows per nine innings pitched.
