Players · D · Pitcher · 2008 regular season

Jason Davis

Pittsburgh Pirates National League Central

Age: 28
B/T: R/R
Height: 6' 6"
Weight: 230 lb
Number: #50

Born: May 8, 1980 in Chattanooga, TN, United States
MLB debut: September 9, 2002

dbWAR: 1.0
IP: 34.0
ERA: 5.29
FIP: 4.90
K/9: 3.4
FIP−: 113

Jason Davis was a relief pitcher for the Pittsburgh Pirates. In 2008 he struck out 13 batters over 34.0 innings across 14 appearances, going 2-4. His ERA of 5.29 was 22.4% higher than the league average of 4.32 — 12th of 17 on his team, and 368th of 482 among MLB pitchers with 20+ innings. Stripping out defence, his 4.90 FIP suggests he pitched better than his ERA shows. He missed bats on 16.1% of swings (7.4% of every pitch he threw), walked 11.1% of the batters he faced and struck out 8.5%. 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, 2008 regular season.

FIP4.90

K/93.4

WHIP1.62

WAR.0

WAR by season

Pitching Regular season

Standard and advanced, by season. Regular-season games only. Seasons on file run 2005–2008; his career began in 2002, and earlier seasons are not in this data yet.


2008	PIT	14	4	34.0	2	4	0	38	20	13	17	5.29	4.90	1.62	3.4	4.5	122	113	0.0
2007	SEA/CLE	24	0	37.0	2	0	0	42	24	19	25	5.84	5.81	1.81	4.6	6.1	131	130	-0.3
2006	CLE	39	0	55.1	3	2	1	67	23	37	14	3.74	2.97	1.46	6.0	2.3	83	66	1.2
2005	CLE	11	4	40.1	4	2	0	44	21	32	20	4.69	4.43	1.59	7.1	4.5	109	103	0.2

Batting Regular season

Standard and advanced, by season. Regular-season games only. Seasons on file run 2005–2008; his career began in 2002, and earlier seasons are not in this data yet.

																					Trend
2008	PIT	5	8	0	0	0	0	0	4	.000	.000	.000	.000	.000	0.0%	50.0%	.000	-2.2	-131	-0.1
2005	CLE	1	3	0	0	0	0	0	2	.000	.000	.000	.000	—	0.0%	66.7%	.000	-0.8	-130	-0.0

Platoon splits

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

Season

Opponent batting by the side the hitter bats from, 2008. 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	80	73	25	2	5	5	.342	.380	.466	.374	6.3%
vs RHB	73	54	13	0	12	8	.241	.394	.333	.347	11.0%

Spray chart

Where every ball he put in play landed, 2008.

Loading 4 batted balls…

Hot and cold zones

Batting average by pitch location, 2008.

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 .263.

Pitch sequencing

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

ShowBatter

Four-seamSplitterSliderUnknown

Select a count to see exactly what Jason Davis throws in it.

Pitch arsenal

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

Season


Four-Seam Fastball	61.2%	329	91.9	1,993	42.6%	15.2%	62	.339	.891
Splitter	27.9%	150	85.5	1,457	26.7%	12.7%	54	.278	.711
Slider	9.5%	51	80.0	791	35.3%	27.8%	9	—	—

Jason Davis'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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Jason Davis

Similar players

Nearest 2008 seasons by command, run prevention and role, on rate statistics rather than totals.

Josh RupeTEX

ERA: 5.14
FIP: 4.99
SO: 53
WAR: -0.1

Leo RosalesAZ

ERA: 4.20
FIP: 4.40
SO: 18
WAR: 0.2

Phil DumatraitPIT

ERA: 5.26
FIP: 4.64
SO: 52
WAR: 0.4

Alberto AriasCOL

ERA: 4.15
FIP: 4.19
SO: 13
WAR: 0.2

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.