Players · H · Pitcher · 2021 regular season

David Hess

Age: 28
B/T: R/R
Height: 6' 1"
Weight: 215 lb

Born: July 10, 1993 in Pembroke Pines, FL, United States
MLB debut: May 12, 2018

dbWAR: -3.6
IP: 20.0
ERA: 9.90
FIP: 9.67
K/9: 8.1
FIP−: 227

David Hess was a relief pitcher for the Miami Marlins. In 2021 he struck out 18 batters over 20.0 innings across 15 appearances, going 2-2. His ERA of 9.90 was 132.1% higher than the league average of 4.27 — the worst on his team, and the second worst among MLB pitchers with 20+ innings. Stripping out defence, his 9.67 FIP suggests the ERA was no fluke. He missed bats on 23.2% of swings (11.4% of every pitch he threw), walked 10.8% of the batters he faced and struck out 17.6%. His -1.1 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, 2021 regular season.

FIP9.67

K/98.1

WHIP2.15

WAR-1.1

WAR by season

Pitching Regular season

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


2021	MIA/TB	15	1	20.0	2	2	32	22	18	11	9.90	9.67	2.15	8.1	5.0	232	227	-1.1
2020	BAL	3	0	7.0	0	0	10	5	1	2	6.43	5.62	1.71	1.3	2.6	144	126	-0.1
2019	BAL	23	14	80.0	1	10	94	63	68	30	7.09	7.26	1.55	7.7	3.4	157	161	-1.6
2018	BAL	21	19	103.1	3	10	106	56	74	37	4.88	5.80	1.38	6.4	3.2	118	140	-0.8

Batting Regular season

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


2021	MIA	3	4	0	3	.000	.000	.000	.000	.000	0.0%	75.0%	.000	-1.1	-122	-0.0
2019	BAL	2	4	0	1	.000	.000	.000	.000	.000	0.0%	25.0%	.000	-1.1	-116	-0.0
2018	BAL	2	3	1	0	.000	.333	.000	.000	.000	33.3%	0.0%	.235	-0.2	43	0.0

Platoon splits

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

Season

Opponent batting by the side the hitter bats from, 2021. 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	54	46	18	6	7	9	.391	.463	.804	.512	16.7%
vs RHB	48	42	14	4	4	9	.333	.396	.762	.471	18.8%

Spray chart

Where every ball he put in play landed, 2021.

Loading 1 batted balls…

Hot and cold zones

Batting average by pitch location, 2021.

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 .243.

Pitch sequencing

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

ShowBatter

Four-seamSliderChangeup

Select a count to see exactly what David Hess throws in it.

Pitch arsenal

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

Season


Four-Seam Fastball	58.0%	213	94.0	2,084	43.7%	16.5%	48	.333	1.149
Slider	38.1%	140	82.0	2,418	45.0%	32.4%	36	.444	1.420
Changeup	3.5%	13	86.6	1,594	23.1%	28.6%	4	—	—

David Hess'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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David Hess

Similar players

Nearest 2021 seasons by command, run prevention and role, on rate statistics rather than totals.

Wes BenjaminTEX

ERA: 8.74
FIP: 7.18
SO: 19
WAR: -0.6

Loosely similar

Adam PlutkoBAL

ERA: 6.71
FIP: 7.13
SO: 44
WAR: -1.4

Loosely similar

Dean KremerBAL

ERA: 7.55
FIP: 6.99
SO: 47
WAR: -0.9

Loosely similar

Bryan GarciaDET

ERA: 7.55
FIP: 6.91
SO: 32
WAR: -1.0

Loosely similar

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.