Monday, September 7, 2009

More on Murphy

I was looking at Daniel Murphy's stats, and noticed how he has a BABIP 100 points lower than last year's (.386-.286). So, using this (password is tuftsbat if you use it), I attempted to find out where Murphy's babip should be. It is expected to be .298 for this year, so he really should have about 117 hits for a .274 batting average. This would also increase his OBP to .324. To determine his slugging is a little more difficult. To do his, I have to figure out the percentage of hits that are doubles and triples. 26% of his hits are doubles, and 2.7% of his hits are triples. (Because a home run is not ball in play on a playing field, there is no increase in homers). So, if I round, 2 of his extra 6 hits are doubles, and there are no extra triples. So 4 hits are singles, and 2 are doubles. This gives him approximately 181 total bases, which gives him a slugging percentage of .423.
Murphy also had a lucky year last year, where he had a BABIP of .386. His xBABIP was .340, so he should've had 34 hits. That would've meant his average was .260, with a OBP of .351. 22% of his hits were doubles, and 7.3% of his hits were triples. That means he would've had 8 doubles, 3 triples, 2 home runs and 21 singles. That is a slugging percentage of .412.
Daniel Murphy's actual stats:

Year

PA

AB

1b

2b

3b

HR

bb

k

hbp

tb







2008

151

131

27

9

3

2

18

28

1

62







2009

473

428

70

29

3

9

35

62

0

173







avg

obp

slg

ops

Ops+

wOBA

.313

.393

.473

.871

129

.373

.259

.311

.404

.716

87

.309


OPS + is a stat that is adjusted for park and league. 100 is average, above 100 is above average, below 100 is below average (129 is 29% better than average)

Daniel Murphy's xBABIP stats

Year

PA

AB

1b

2b

3b

HR

bb

k

hbp

tb








2008

151

131

21

8

3

2

18

28

1

54








2009

473

428

74

31

3

9

35

62

0

181









avg

obp

slg


ops

Ops+

wOBA

.260

.351

.412


.763

112

.345

.274

.324

.423


.747

108

.323

Note: OPS+ used ESPN Park factors for Shea Stdium (.946) and Citi Field (.941)

All in all Daniel Murphy would be a perfectly adequate bench player/utility guy, if he can play second base. A Mark DeRosa type.

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