What is Opposing Batting Average ?

Opposing batting average is the batting average of players against a pitcher or a team's pitchers. Opposing batting average is calculated by dividing the number of hits allowed by the number of at bats pitched. Generally, for Opposing Batting Average, lower is better. (Source)

What is a good Opposing Batting Average?

What does good Opposing Batting Average mean? "Good" baseball stats can be very subjective and mean different things to different people. I have attempted to quantify good and bad by taking season and career stats for MLB pitchers with a minimum number of pitched outs. In this case 100 for career and 50 for a season. To find good and bad within this cohort of players I calculated the first and third quartiles, anything between these quartiles I consider average. This makes up the middle 50% of players. In an example where higher is better for a stat, below the first quartile (bottom 25% of players) would be bad and above the 3rd quartile (top 25% of players) would be good. For stats where lower is better, flip around good and bad.
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Career, Season, and Season Average Opposing Batting Average Records

For my hot take on Opposing Batting Average records most of the same rules apply from the first section. To be considered for my prestigious lists the player must meet a certain threshold of pitched outs. Since this is a Pitching stat to be considered for the career list the player must have over 100 pitched outs, for a season consideration the player must have had 75 pitched outs. Additionally, the player's final game must have been after 1899.
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Distribution of Career Opposing Batting Average by Player Generation

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Distribution of Season Opposing Batting Average by Player Generation

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Distribution of Career Opposing Batting Average by Player Position

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Distribution of Season Opposing Batting Average by Player Position

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