Thursday, October 11, 2007
Quality of play in other leagues
Some interesting graphs showing some “independent” metrics to various levels of leagues. I was (am) skeptical that this would show us anything, as the blogger himself notes:
Note that you can’t use batting-related data to distinguish level of play. A harder league has both better batters and better pitchers, so there’s no relationship between, say, batting average and level of play.
So, why would Errors, SB, et al tell us anything? It’s not like the batter and pitcher are immaterial to whether the fielder makes an error, or the pitcher and runner are immaterial to the runner stealing a base. Furthermore, the SB is a small-ball strategy, and if a league is not conducive to the HR, you’ll get more SB. Having said all that, the straight line sure makes the point.
Note: don’t use “per 9IP”. You should be using per batter for error rates, and per runner on base for steals.
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