Isolating Ichiro (and why I hate the single)
You all know that batting average isn’t very useful for the purposes of anaylzing baseball players. If you don’t know that, and that last statement made you angry, then I’m sorry, but you probably aren’t going to buy what the rest of what I’m writing today anyway, so go have a beer on me.
Ready.
Good.
Batting Average is basically boosted by singles. My reasoning behind thinking that is if you hear player A is batting .323 and player B is batting .285, then you don’t really know what kind of year they are having. You can probably guess though that player A has hit more singles.
I know that singles aren’t glamorous, and they are necissary pieces of offense. However, generally, teams with a lot of singles generally don’t score many runs. Teams with a lot of doubles, home runs, and walks do.
My friend Neil, a statistics grad, actually studied the issue, and he determined that singles have a weaker correlation with run scoring than walks do (.500 for singles, .591 for walks). I’m not sure exactly what that means, but it sounds like singles generally aren’t very significant compared to other ways to get on base. Yes I know you can’t score from second on a walk, but it doesn’t seem to matter.
Of course, Ichiro is the posterboy for singles. Because he hits singles at such a high rate (147 in 491 ab) his batting average is usually very high (.360 this season). And because of the high batting average, he posts a very good on base percentage (.401) and a good slugging percentage (.442).
Of course, if you look at an OPS line of 360/401/442, you think that Ichiro is having a good year. He is, but you don’t know more important things, like how much he’s walking and how much power he has in relation to other players.
That’s why I like to isolate the rates, as I call it.
Isolated discipline (sorry, but I can’t think of a better name) and it’s much more famous cousin, Isolated slugging, are those two rates, with batting average subtracted out. This tells you a players on base independant of hits (mostly singles) and a player’s power independent of the single-based bastards.
For the American League in 2004, you have a stat line of 270/336/432. That makes the two isolations are 066/162.
Here are the Red Sox:
BA OB Slu Iso d Iso s Bellhorn 0.256 16 0.373 7 0.432 11 0.117 1 0.176 9Burks 0.133 23 0.235 20 0.233 21 0.102 2 0.100 18Cabrera 0.211 20 0.231 21 0.368 18 0.020 20 0.157 12Crespo 0.165 22 0.165 23 0.215 22 0.000 21 0.050 21Damon 0.300 5 0.375 5 0.462 6 0.075 11 0.162 11Daubach 0.227 19 0.326 14 0.413 15 0.099 4 0.186 5Dominique 0.182 21 0.182 22 0.182 23 0.000 21 0.000 24Grcprr 0.321 1 0.367 8 0.500 4 0.046 16 0.179 8Guiterrez 0.308 3 0.308 17 0.385 17 0.000 21 0.077 20Kapler 0.290 7 0.325 15 0.435 10 0.035 18 0.145 15McCarty 0.246 17 0.320 16 0.388 16 0.074 12 0.142 17Mntkwcz 0.259 15 0.286 18 0.296 20 0.027 19 0.037 23Millar 0.298 6 0.377 4 0.448 9 0.079 8 0.150 14Mirabelli 0.281 10 0.361 9 0.573 3 0.080 7 0.292 3Mueller 0.265 14 0.342 12 0.432 11 0.077 9 0.167 10Nixon 0.273 13 0.345 11 0.424 14 0.072 7 0.151 13Ortiz 0.308 3 0.374 6 0.610 2 0.066 14 0.302 1Ramirez 0.317 2 0.406 1 0.611 1 0.089 6 0.294 2Reese 0.230 18 0.274 19 0.315 19 0.044 17 0.085 19Roberts 0.286 8 0.333 13 0.429 13 0.047 15 0.143 16Varitek 0.283 9 0.379 3 0.462 6 0.096 5 0.179 7Youkilis 0.280 11 0.382 2 0.460 8 0.102 2 0.180 6Pitchers 0.095 24 0.095 24 0.143 24 0.000 21 0.048 22
The number right next to the rate stat is the team rank. Happy parusing.
Derek Lowe vs Dewan Brazelton tonight. I’ve been more confident…
