Players · S · Pitcher · 2022

Justus Sheffield

Age: 26
B/T: L/L
Height: 5' 10"
Weight: 224 lb

Born: May 13, 1996 in Tullahoma, TN, United States
MLB debut: September 19, 2018

dbWAR: 1.1
IP: 11.2
ERA: 3.86
FIP: 4.83
K/9: 5.4
FIP−: 122

Justus Sheffield was a relief pitcher for the Seattle Mariners. In 2022 he struck out 7 batters over 11.2 innings across 6 appearances, going 1-0. His ERA of 3.86 was 2.8% lower than the league average of 3.97. Stripping out defence, his 4.83 FIP suggests that his ERA had some help behind him. He missed bats on 14.9% of swings (6.1% of every pitch he threw), walked 11.8% of the batters he faced and struck out 13.7%. 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, 2022.

FIP4.83

K/95.4

WHIP1.29

WAR-.0

WAR by season

Pitching

Standard and advanced, by season.


2022	SEA	6	1	11.2	1	0	9	5	7	6	3.86	4.83	1.29	5.4	4.6	97	122	-0.0
2021	SEA	21	15	80.1	7	8	105	61	63	43	6.83	5.66	1.84	7.1	4.8	160	133	-0.5
2020	SEA	10	10	55.1	4	3	52	22	48	20	3.58	3.17	1.30	7.8	3.3	80	71	1.5
2019	SEA	8	7	36.0	0	1	44	22	37	18	5.50	4.71	1.72	9.3	4.5	122	105	0.3
2018	NYY	3	0	2.2	0	0	4	3	0	3	10.13	11.41	2.63	0.0	10.1	244	275	-0.2

Batting

Standard and advanced, by season.

																					Trend
2021	SEA	1	2	1	0	0	0	0	1	.500	.500	.500	.000	1.000	0.0%	50.0%	.438	+0.2	192	0.1
2019	SEA	1	2	0	0	0	0	0	2	.000	.000	.000	.000	—	0.0%	100.0%	.000	-0.6	-121	-0.0

Platoon splits

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

Season

Opponent batting by the side the hitter bats from, 2022. 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	16	14	2	1	2	4	.143	.250	.357	.273	25.0%
vs RHB	35	29	7	0	4	3	.241	.343	.241	.278	8.6%

Pitch sequencing

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

ShowBatter

SinkerSliderChangeupFour-seam

Select a count to see exactly what Justus Sheffield throws in it.

Pitch arsenal

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

Season


Sinker	35.2%	63	91.7	1,977	36.5%	4.3%	17	.235	.616
Slider	35.2%	63	81.6	2,480	36.5%	34.8%	14	—	—
Changeup	17.9%	32	87.0	1,755	34.4%	5.9%	10	—	—
Four-Seam Fastball	11.7%	21	91.6	1,971	42.9%	9.1%	2	—	—

Justus Sheffield'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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Justus Sheffield

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.