[New York Yankees second baseman Robinson] Canó, Long said, has dedicated himself to physical fitness and is in “immaculate condition.”Let the good times roll!

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A blog that pretends to undertake serious studies of baseball, provide critical commentary, and rant about when to pitch Mariano Rivera.

## Tuesday, November 25, 2008

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Best. Shape. Ever.

## Key Stats

## Contributors

And it's not even Thanksgiving yet!

[New York Yankees second baseman Robinson] Canó, Long said, has dedicated himself to physical fitness and is in “immaculate condition.”Let the good times roll!

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ARP measures the amount of runs that a relief pitcher prevented from scoring above what an average relief pitcher would have prevented. ARP is adjusted for the situation in which the pitcher was used.

ISO is the ratio of extra bases that a player has accumulated to the number of at bats he has received. ISO is essentially a player's SLG minus his batting average. This has the effect of giving a player credit only for extra base hits. ISO is not a useful measure of player value on its own, but is a very effective measure of a player's extra base ability.

OBP is the ratio of the number of times a player reached base safely to the number of opportunities he had to reach base. It effectively measures a player's skill at not making outs. Since outs are a teams most precious commodity, OBP measures perhaps the most valuable and fundamental skill a player can have.

OPS is a crude metric that simply sums a player's on base and slugging percentages. It is probably the most popular non-traditional measure of overall batting performance due to its simplicity. However, it has drawn criticism from performance analysts for its inaccuracy relative to other advanced metrics and because it works by adding two numbers with different denominators together to produce a conceptually meaningless quantity. It is best used as a quick and dirty estimator of batting prowess.

SLG is the ratio of total bases that a player has accumulated to the number of at bats he has received. It is essentially a weighted batting average that gives a player more credit for extra base hits.

UZR is a defensive metric that uses play-by-play data to determine how good a player's defense is. On Fangraphs, it is denominated in runs saved above average.

VORP measures the amount of runs that a player contributed above what a "replacement player" at the same position would produce. VORP considers only offensive contributions.

WARP measures the amount of wins that a player contributed above what a "replacement player" at the same position would produce. WARP considers both offensive and defensive contributions.

WXRL measures the amount of wins that a relief pitcher contributed above what a "replacement player" would produce. WXRL differs from WARP because it is adjusted for both the game situation in which the pitcher was used and the hitters that the pitcher faced.

## 1 comment:

Oh man. I missed this post somehow, in the melange of Thanksgiving. I'm so happy for Robbie, who is in the Best Shape of His Life well before many of his peers. Love it.

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