Players · W · Pitcher · 2010 regular season

Sean West

Age: 24
B/T: R/L
Height: 6' 8"
Weight: 275 lb
Number: #45

Born: June 15, 1986 in Houston, TX, United States
MLB debut: May 23, 2009

dbWAR: .8
IP: 9.1
ERA: 7.71
FIP: 5.44
K/9: 7.7
FIP−: 133

Sean West was a starting pitcher for the Florida Marlins. In 2010 he struck out 8 batters over 9.1 innings across 2 appearances, 2 of them starts, going 0-2. His ERA of 7.71 was 89.1% higher than the league average of 4.08. Stripping out defence, his 5.44 FIP suggests he pitched better than his ERA shows. He missed bats on 19.7% of swings (9.5% of every pitch he threw), walked 8.5% of the batters he faced and struck out 17.0%. His -0.0 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.

League context

Percentile among qualified pitchers, 2010 regular season.

FIP5.44

K/97.7

WHIP2.04

WAR-.0

WAR by season

Pitching Regular season

Standard and advanced, by season. Regular-season games only.

																				Trend
2010	FLA	2	2	9.1	0	2	0	15	8	8	4	7.71	5.44	2.04	7.7	3.9	189	133	-0.0
2009	FLA	20	20	103.1	8	6	0	115	55	70	44	4.79	4.49	1.54	6.1	3.8	111	104	1.1

Batting Regular season

Standard and advanced, by season. Regular-season games only.

																					Trend
2010	FLA	2	3	0	0	0	0	0	2	.000	.000	.000	.000	.000	0.0%	66.7%	.000	-0.8	-123	-0.0
2009	FLA	19	35	2	0	0	0	0	19	.065	.065	.097	.032	.167	0.0%	54.3%	.070	-7.5	-75	-0.3

Platoon splits

How left- and right-handed hitters fare against him.

Season

Opponent batting by the side the hitter bats from, 2010. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
Split	PA	AB	H	HR	BB	SO	AVG	OBP	SLG	wOBA	K%
vs LHB	6	6	3	0	0	3	.500	.500	.500	.449	50.0%
vs RHB	41	35	12	2	4	5	.343	.410	.600	.436	12.2%

Spray chart

Where every ball he put in play landed, 2010.

Loading 1 batted balls…

Hot and cold zones

Batting average by pitch location, 2010.

Below averageLeague averageAbove average

Batting average by location of the pitch that ended each plate appearance, catcher's view. The bordered square is the strike zone; the outer band is chase territory. Cells with fewer than 8 at-bats are left grey rather than shown as signal. League average on the same attribution is .257.

Pitch sequencing

What Sean West throws in each count, and what he follows each pitch with. Select any cell for the breakdown.

ShowBatter

Four-seamSliderChangeupSinker

Select a count to see exactly what Sean West throws in it.

Pitch arsenal

What he throws, how hard, how often it misses, and what hitters do with it.

Season


Four-Seam Fastball	48.1%	76	90.0	2,141	44.7%	13.3%	13	—	—
Slider	26.6%	42	80.8	358	40.5%	32.1%	18	.444	1.056
Changeup	17.7%	28	82.0	2,133	39.3%	14.3%	7	—	—

Sean West's arsenal by usage. Velocity is average release speed in mph, spin in rpm, and whiff rate is misses per swing — the cleanest single measure of whether a pitch beats hitters. BAA and OPS are what hitters did against each pitch, credited to the one that ended the plate appearance, and are left blank under 15 at-bats.

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Sean West

How these are computed

wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.