Players · C · Pitcher · 2012 regular season

Aaron Cook

Age: 33
B/T: R/R
Height: 6' 3"
Weight: 215 lb
Number: #28

Born: February 8, 1979 in Fort Campbell, KY, United States
MLB debut: August 10, 2002

dbWAR: 14.0
IP: 94.0
ERA: 5.65
FIP: 5.45
K/9: 1.9
FIP−: 136

Aaron Cook was a starting pitcher for the Boston Red Sox. In 2012 he struck out 20 batters over 94.0 innings across 18 appearances, 18 of them starts, going 4-11. His ERA of 5.65 was 40.7% higher than the league average of 4.01 — 13th of 16 on his team, and 424th of 484 among MLB pitchers with 20+ innings. Stripping out defence, his 5.45 FIP suggests the ERA was no fluke. He missed bats on 8.9% of swings (4.3% of every pitch he threw), walked 5.1% of the batters he faced and struck out 4.9%. His -0.4 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, 2012 regular season.

FIP5.45

K/91.9

WHIP1.47

WAR-.4

WAR by season

Pitching Regular season

Standard and advanced, by season. Regular-season games only — postseason games are listed separately below. Seasons on file run 2005–2012; his career began in 2002, and earlier seasons are not in this data yet.


2012	BOS	18	18	94.0	4	11	117	59	20	21	5.65	5.45	1.47	1.9	2.0	141	136	-0.4
2011	COL	18	17	97.0	3	10	127	65	48	37	6.03	4.54	1.69	4.5	3.4	153	115	0.6
2010	COL	23	23	127.2	6	8	147	72	62	52	5.08	4.54	1.56	4.4	3.7	124	111	1.1
2009	COL	27	27	158.0	11	6	175	73	78	47	4.16	4.60	1.41	4.4	2.7	96	107	1.6
2008	COL	32	32	211.1	16	9	236	93	96	48	3.96	3.76	1.34	4.1	2.0	92	87	4.0
2007	COL	25	25	166.0	8	7	178	76	61	44	4.12	4.58	1.34	3.3	2.4	92	102	1.9
2006	COL	32	32	212.2	9	15	242	100	92	55	4.23	4.20	1.40	3.9	2.3	93	93	3.5
2005	COL	13	13	83.1	7	2	101	34	24	16	3.67	4.34	1.40	2.6	1.7	86	101	1.1

Batting Regular season


2011	COL	17	35	5	2	0	11	.147	.147	.147	.000	.217	0.0%	31.4%	.132	-5.1	-27	-0.1
2010	COL	21	45	6	1	0	17	.150	.150	.200	.050	.261	0.0%	37.8%	.155	-6.1	-16	-0.0
2009	COL	26	58	5	6	7	14	.114	.245	.136	.023	.161	12.1%	24.1%	.201	-6.2	10	0.1
2008	COL	33	78	14	4	2	21	.233	.258	.250	.017	.359	2.6%	26.9%	.232	-6.5	30	0.4
2007	COL	23	60	10	1	4	14	.238	.319	.310	.071	.357	6.7%	23.3%	.294	-2.1	69	0.6
2006	COL	31	75	3	0	4	21	.052	.113	.052	.000	.081	5.3%	28.0%	.090	-15.5	-62	-0.4
2005	COL	13	36	5	0	1	12	.167	.194	.233	.067	.278	2.8%	33.3%	.192	-4.1	5	0.1

Separate from the regular season

Postseason Postseason

Wild Card through World Series. These games are counted on their own: none of them are in the regular-season tables, career totals, league context, leaderboards or dbWAR on this page.

Postseason pitching

Postseason Aaron Cook's postseason pitching, by October and round. Not part of any regular-season figure on this page.
Season	Team	Round	G	GS	IP	W	L	H	ER	HR	BB	SO	ERA	WHIP	K/9
2009 Post	COL	NLDS	1	1	5.0	1	0	7	3	0	2	4	5.40	1.80	7.2
2007 Post	COL	World Series	1	1	6.0	0	1	6	3	1	0	2	4.50	1.00	3.0
2005–2012		Postseason total · 2 Octobers	2	2	11.0	1	1	13	6	1	2	6	4.91	1.36	4.9

Postseason batting

Postseason Aaron Cook's postseason batting, by October and round. Not part of any regular-season figure on this page.
Season	Team	Round	G	PA	AB	R	H	SO	AVG	OBP	SLG	OPS
2009 Post	COL	NLDS	1	2	2	1	1	1	.500	.500	.500	1.000
2007 Post	COL	World Series	1	2	2	0	1	0	.500	.500	.500	1.000
2005–2012		Postseason total · 2 Octobers	2	4	4	1	2	1	.500	.500	.500	1.000

Box-score and rate statistics only. wOBA, wRC+, FIP and dbWAR are measured against a full league season, and a postseason is a few teams playing each other for a month, so they are not computed for October.

Platoon splits

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

Season

Opponent batting by the side the hitter bats from, 2012. 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	226	209	71	7	14	9	.340	.382	.545	.402	4.0%
vs RHB	185	176	46	8	7	11	.261	.288	.443	.319	5.9%

Pitch sequencing

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

ShowBatter

SinkerFour-seamSliderCurveball

Select a count to see exactly what Aaron Cook throws in it.

Pitch arsenal

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

Season


Sinker	72.7%	984	89.7	1,476	39.0%	7.4%	281	.313	.849
Four-Seam Fastball	10.9%	148	89.6	1,057	41.2%	14.1%	39	.231	.558
Slider	8.9%	121	87.2	910	28.1%	19.1%	32	.313	.771
Curveball	6.9%	94	75.7	1,532	31.9%	6.1%	33	.303	1.121

Aaron Cook'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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Aaron Cook

Similar players

Nearest 2012 seasons by command, run prevention and role, on rate statistics rather than totals.

Henderson AlvarezTOR

ERA: 4.85
FIP: 5.18
SO: 79
WAR: -0.4

Josh TomlinCLE

ERA: 6.36
FIP: 5.09
SO: 56
WAR: -0.3

Jeremy GuthrieCOL

ERA: 4.76
FIP: 5.10
SO: 101
WAR: 0.3

Comparable

Jeff SuppanSD

ERA: 5.28
FIP: 5.61
SO: 7
WAR: -0.3

Comparable

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.