Players · K · Pitcher · 2010 regular season

Brad Kilby

Age: 27
B/T: L/L
Height: 6' 0"
Weight: 240 lb
Number: #39

Born: February 19, 1983 in Modesto, CA, United States
MLB debut: September 2, 2009

dbWAR: .5
IP: 8.1
ERA: 2.16
FIP: 4.28
K/9: 8.6
FIP−: 105

Brad Kilby was a relief pitcher for the Oakland Athletics. In 2010 he struck out 8 batters over 8.1 innings across 5 appearances, going 0-0. His ERA of 2.16 was 47.1% lower than the league average of 4.08. Stripping out defence, his 4.28 FIP suggests that his ERA had some help behind him. He missed bats on 32.5% of swings (18.2% of every pitch he threw), walked 0.0% of the batters he faced and struck out 25.0%. 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.

FIP4.28

K/98.6

WHIP0.84

WAR.0

WAR by season

Pitching Regular season

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

																				Trend
2010	OAK	5	0	8.1	0	0	0	7	2	8	0	2.16	4.28	0.84	8.6	0.0	53	105	0.0
2009	OAK	11	1	17.0	1	0	0	10	1	20	4	0.53	2.21	0.82	10.6	2.1	12	51	0.5

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	13	13	2	1	0	1	.154	.154	.385	.232	7.7%
vs RHB	19	19	5	1	0	7	.263	.263	.526	.342	36.8%

Pitch sequencing

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

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Four-seamChangeupSlider

Select a count to see exactly what Brad Kilby throws in it.

Pitch arsenal

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

Season


Four-Seam Fastball	75.9%	104	89.2	2,362	46.2%	29.8%	23	.304	.957
Changeup	10.2%	14	80.2	1,693	42.9%	83.3%	2	—	—
Slider	9.5%	13	81.0	710	53.8%	22.2%	4	—	—

Brad Kilby'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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Brad Kilby

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.