Players · A · Pitcher · 2013 regular season

Jairo Asencio

Age: 30
B/T: R/R
Height: 6' 2"
Weight: 180 lb

Born: May 30, 1983 in Sabana Grande de Palenque, Dominican Republic
MLB debut: July 12, 2009

dbWAR: -.2
IP: 2.1
ERA: 7.71
FIP: 7.76
K/9: 15.4
FIP−: 201

Jairo Asencio was a relief pitcher for the Baltimore Orioles. In 2013 he struck out 4 batters over 2.1 innings across 4 appearances, going 0-0. His ERA of 7.71 was 99.5% higher than the league average of 3.87. Stripping out defence, his 7.76 FIP suggests the ERA was no fluke. He missed bats on 30.0% of swings (11.1% of every pitch he threw), walked 16.7% of the batters he faced and struck out 33.3%. His -0.1 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.

FIP7.76

K/915.4

WHIP2.14

WAR-.1

WAR by season

Pitching Regular season

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


2013	BAL	4	2.1	0	0	3	2	4	2	7.71	7.76	2.14	15.4	7.7	200	201	-0.1
2012	CLE/CHC	30	40.1	1	1	39	22	29	19	4.91	4.76	1.44	6.5	4.2	122	118	-0.1
2011	ATL	6	10.1	0	0	16	8	8	5	6.97	4.19	2.03	7.0	4.4	177	106	0.0
2009	ATL	3	2.2	0	1	3	1	0	2	3.38	5.35	1.88	0.0	6.8	78	124	-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	4	4	2	1	0	1	.500	.500	1.250	.754	25.0%
vs RHB	8	6	1	0	2	3	.167	.375	.333	.286	37.5%

Pitch sequencing

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

ShowBatter

ChangeupSliderFour-seam

Select a count to see exactly what Jairo Asencio throws in it.

Pitch arsenal

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

Season


Changeup	50.0%	27	86.3	1,343	55.6%	33.3%	7	—	—
Four-Seam Fastball	24.1%	13	91.9	1,754	38.5%	0.0%	2	—	—
Slider	18.5%	10	80.8	907	70.0%	33.3%	1	—	—

Jairo Asencio'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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Jairo Asencio

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.