Quote:
Originally Posted by KBLover
Thing is, though, why are we saying "luck" when it's mostly physics at work, meaning we should be able to measure this stuff. For example, if a pitcher allows harder hit grounders more often than softer hit grounders - that could be an explanation. Instead its "well pitcher A is just "luckier" than pitcher B".
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The reason we use "luck" is because the data shows us that over time it is extremely likely that pitcher A and pitcher B will pretty much end up in the same place when it comes to batted balls. Sure, there are physics at work, but the data suggests (and batter f/x will likely show) that the variance in that physics will be correlated to a much larger extent with the batter than the pitcher. What will be curious to see is whether there is any significant correlation with the pitcher at all.