Players · R · Pitcher · 2013 regular season

Sandy Rosario

San Francisco Giants National League West

Age: 28
B/T: R/R
Height: 6' 1"
Weight: 205 lb
Number: #43

Born: August 22, 1985 in Salcedo, Dominican Republic
MLB debut: September 23, 2010

dbWAR: .1
IP: 41.2
ERA: 3.02
FIP: 3.65
K/9: 5.2
FIP−: 94

Sandy Rosario was a relief pitcher for the San Francisco Giants. In 2013 he struck out 24 batters over 41.2 innings across 43 appearances, going 3-2. His ERA of 3.02 was 21.8% lower than the league average of 3.87 — 7th of 18 on his team, and 123rd of 496 among MLB pitchers with 20+ innings. Stripping out defence, his 3.65 FIP suggests that his ERA had some help behind him. He missed bats on 18.3% of swings (8.3% of every pitch he threw), walked 11.1% of the batters he faced and struck out 13.3%. His 0.3 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, 2013 regular season.

FIP3.65

K/95.2

WHIP1.39

WAR.3

WAR by season

Pitching Regular season

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


2013	SF	43	41.2	3	2	38	14	24	20	3.02	3.65	1.39	5.2	4.3	78	94	0.3
2012	MIA	4	3.0	0	0	8	6	2	0	18.00	1.76	2.67	6.0	0.0	448	44	0.1
2011	FLA	4	3.2	0	0	5	1	2	2	2.45	3.57	1.91	4.9	4.9	62	91	0.0
2010	FLA	2	1.0	0	0	9	6	0	1	54.00	32.08	10.00	0.0	9.0	1,324	786	-0.3

Batting Regular season

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

																					Trend
2013	SF	1	1	0	0	0	0	0	1	.000	.000	.000	.000	—	0.0%	100.0%	.000	-0.2	-127	-0.0	—

Platoon splits

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

Season

Opponent batting by the side the hitter bats from, 2013. 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	64	51	10	1	10	8	.196	.323	.275	.255	12.5%
vs RHB	116	104	28	0	10	16	.269	.330	.337	.300	13.8%

Hot and cold zones

Batting average by pitch location, 2013.

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 .253.

Pitch sequencing

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

ShowBatter

Four-seamSliderChangeupIN

Select a count to see exactly what Sandy Rosario throws in it.

Pitch arsenal

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

Season


Four-Seam Fastball	52.4%	353	92.8	2,097	46.5%	19.3%	83	.253	.636
Slider	36.8%	248	82.1	727	37.9%	17.9%	59	.203	.501
Changeup	7.7%	52	85.9	1,839	34.6%	12.5%	13	—	—
Intentional Ball	3.0%	20	63.7	1,315	0.0%	—	0	—	—

Sandy Rosario'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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Sandy Rosario

Similar players

Nearest 2013 seasons by command, run prevention and role, on rate statistics rather than totals.

Matt AlbersCLE

ERA: 3.14
FIP: 3.49
SO: 35
WAR: 0.6

Very close

Joe SaveryPHI

ERA: 3.15
FIP: 3.95
SO: 14
WAR: 0.1

Ronald BelisarioLAD

ERA: 3.97
FIP: 3.64
SO: 49
WAR: 0.5

Jeremy AffeldtSF

ERA: 3.74
FIP: 4.44
SO: 21
WAR: -0.1

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.