Players · L · Pitcher · 2017

Jeff Locke

Age: 30
B/T: L/L
Height: 6' 0"
Weight: 200 lb
Number: #49

Born: November 20, 1987 in North Conway, NH, United States
MLB debut: September 10, 2011

dbWAR: 2.0
IP: 32.0
ERA: 8.16
FIP: 4.56
K/9: 7.3
FIP−: 105

Jeff Locke was a starting pitcher for the Miami Marlins. In 2017 he struck out 26 batters over 32.0 innings across 7 appearances, 7 of them starts, going 0-5. His ERA of 8.16 was 87.1% higher than the league average of 4.36 — the worst on his team, and 524th of 527 among MLB pitchers with 20+ innings. Stripping out defence, his 4.56 FIP suggests he pitched better than his ERA shows. He missed bats on 18.4% of swings (8.4% of every pitch he threw), walked 9.9% of the batters he faced and struck out 17.1%. 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, 2017.

FIP4.56

K/97.3

WHIP1.78

WAR.3

WAR by season

Pitching

Standard and advanced, by season.


2017	MIA	7	7	32.0	0	5	42	29	26	15	8.16	4.56	1.78	7.3	4.2	187	105	0.3
2016	PIT	30	19	127.1	9	8	151	77	73	44	5.44	4.84	1.53	5.2	3.1	130	116	0.3
2015	PIT	30	30	168.1	8	11	179	84	129	60	4.49	3.95	1.42	6.9	3.2	113	100	1.9

Batting

Standard and advanced, by season.


2017	MIA	7	11	0	0	1	9	.000	.091	.000	.000	.000	9.1%	81.8%	.065	-2.4	-81	-0.1
2016	PIT	19	39	4	0	1	17	.125	.152	.125	.000	.267	2.6%	43.6%	.127	-6.0	-31	-0.1
2015	PIT	29	54	3	2	2	18	.067	.106	.089	.022	.111	3.7%	33.3%	.095	-9.5	-57	-0.3

Platoon splits

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

Season

Opponent batting by the side the hitter bats from, 2017. 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	37	32	10	2	4	4	.313	.378	.563	.395	10.8%
vs RHB	115	103	32	2	11	22	.311	.374	.466	.355	19.1%

Spray chart

Where every ball he put in play landed, 2017.

Loading 1 batted balls…

Hot and cold zones

Batting average by pitch location, 2017.

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 .254.

Pitch sequencing

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

ShowBatter

SinkerFour-seamChangeupKnuckle curve

Select a count to see exactly what Jeff Locke throws in it.

Pitch arsenal

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

Season


Sinker	34.1%	196	90.7	1,988	40.8%	5.8%	47	.340	.895
Four-Seam Fastball	24.7%	142	90.9	2,097	52.8%	5.5%	28	.286	.971
Changeup	23.9%	137	80.5	1,361	48.9%	39.3%	46	.283	.753
Knuckle Curve	17.1%	98	77.9	1,617	34.7%	16.1%	14	—	—

Jeff Locke'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.

Head to head

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Jeff Locke

Similar players

Nearest 2017 seasons by command, run prevention and role, on rate statistics rather than totals.

Homer BaileyCIN

ERA: 6.43
FIP: 4.90
SO: 67
WAR: 0.5

Vance WorleyMIA

ERA: 6.91
FIP: 4.90
SO: 50
WAR: 0.1

Brett AndersonTOR

ERA: 6.34
FIP: 4.10
SO: 38
WAR: 0.8

Comparable

Wily PeraltaMIL

ERA: 7.85
FIP: 5.34
SO: 52
WAR: -0.1

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.