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Sandy Koufax had a .179 batting average against in 1965, the best in Major League Baseball for that season. [1]In baseball statistics, batting average against (denoted by BAA or AVG), also known as opponents' batting average (denoted by OBA), [a] is a statistic that measures a pitcher's ability to prevent hits during official at bats.
In baseball statistics, slugging percentage (SLG) is a measure of the batting productivity of a hitter. It is calculated as total bases divided by at-bats, through the following formula, where AB is the number of at-bats for a given player, and 1B, 2B, 3B, and HR are the number of singles, doubles, triples, and home runs, respectively:
The final result measures how many extra bases a player averages per at bat. A player who hits only singles would thus have an ISO of 0. The maximum ISO is 3.000, and can only be attained by hitting a home run in every at-bat. The term "isolated power" was coined by Bill James, but the concept dates back to Branch Rickey and his statistician ...
In baseball, batting average (BA) is determined by dividing a player's hits by their total at-bats. It is usually rounded to three decimal places and read without the decimal: A player with a batting average of .300 is "batting three hundred". If necessary to break ties, batting averages could be taken beyond the .001 measurement.
Base runs will sometimes project many more than three runners left on base per inning, despite the fact that three is the upper limit. For example, if walks have a B coefficient of .1, an inning with 10 walks and three outs will yield an estimate of 10*1/(1+3) = 2.5 runs, meaning that 7.5 runners must have been stranded.
Baseball-Reference uses six components to calculate WAR for position players: [13] The components are batting runs, baserunning runs, runs added or lost due to grounding into double plays in double play situations, fielding runs, positional adjustment runs, and replacement level runs (based on playing time). The first five factors are compared ...
The majority of wooden baseball bats today are made from northern white ash harvested from Pennsylvania or New York. White ash is used because of its hardness, durability, strength, weight and feel. Trees that provide the lumber for baseball bats are often 50 years old, and of all the lumber harvested, the top 10 percent is saved for pro bats.
Ted Williams is the all-time Major League Baseball leader in on-base percentage. In baseball statistics, on-base percentage (OBP) measures how frequently a batter reaches base. An official Major League Baseball (MLB) statistic since 1984, it is sometimes referred to as on-base average (OBA), [a] as it is rarely presented as a true percentage.