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Ariel Hernández headshot

Players · H · Pitcher · 2017

Ariel Hernández

Age
25
B/T
R/R
Height
6' 4"
Weight
230 lb
Born
March 2, 1992 in Santo Domingo, Dominican Republic
MLB debut
April 24, 2017
dbWAR
-.5
2 season(s)
IP
24.1
ERA
5.18
FIP
6.69
K/9
10.7
FIP−
154
100 = avg

Ariel Hernández was a relief pitcher for the Cincinnati Reds. In 2017 he struck out 29 batters over 24.1 innings across 19 appearances, going 0-0. His ERA of 5.18 was 18.8% higher than the league average of 4.36 — 14th of 22 on his team, and 396th of 527 among MLB pitchers with 20+ innings. Stripping out defence, his 6.69 FIP suggests that his ERA had some help behind him. He missed bats on 32.0% of swings (12.9% of every pitch he threw), walked 20.4% of the batters he faced and struck out 26.9%. His -0.5 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.

FIP6.69
K/910.7
WHIP1.48
WAR-.5

Pitching

Standard and advanced, by season.

Trend
2017CIN19024.1000141429225.186.691.4810.78.1119154-0.5—

Batting

Standard and advanced, by season.

Trend
2017CIN22000001.000.000.000.000.0000.0%50.0%.000-0.5-121-0.0—

Platoon splits

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

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.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB5341104117.244.396.585.40613.2%
vs RHB5544421122.091.273.250.25440.0%

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.

———————————1 AB——
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 Ariel Hernández throws in each count, and what he follows each pitch with. Select any cell for the breakdown.

ShowBatter
Four-seamCurveballChangeupSinker

Select a count to see exactly what Ariel Hernández throws in it.

Pitch arsenal

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

Four-Seam Fastball65.7%28597.92,19341.8%21.5%52.231.999
Curveball26.7%11687.22,86047.4%47.5%28.071.340
Changeup6.5%2890.01,84046.4%91.7%3——
Ariel Hernández'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

Put Ariel Hernández beside up to three others.

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Ariel Hernández

Similar players

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

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.