P | Bats/Throws: L/L | 6' 2" 255 lbs | Age: 28
W L ERA G GS SV IP SO WHIP
2020 1 0 2.16 7 0 0 8.1 13 1.56
2021 2 2 3.38 48 0 0 40 54 1.50
2022 0 1 21.60 7 0 0 6.2 9 3.30
4 Seasons 3 4 5.06 91 1 0 85.1 133 1.73
G W-L ERA IP SO WHIP
2020 7 1-0 2.16 8.1 13 1.56
2021 48 2-2 3.38 40 54 1.50
2022 7 0-1 21.60 6.2 9 3.30
4 Seasons 91 3-4 5.06 85.1 133 1.73
MLB Percentile Rankings
Movement Profile (Induced Break)
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Statcast Statistics

Season Age Pitches Batted
Balls
Barrels Barrel % Barrel/PA Exit
Velocity
Max EV Launch
Angle
LA Sweet-
Spot %
XBA XSLG WOBA XWOBA XWOBACON HardHit% K% BB% ERA xERA
2019 22 681 61 0 0.0 0.0 86.4 112.5 9.7 37.7 .162 .226 .327 .267 .323 31.1 38.8 17.7 4.45 3.09
2020 23 176 18 0 0.0 0.0 84.4 102.6 13.6 22.2 .158 .200 .268 .280 .271 33.3 32.5 20.0 2.16 3.28
2021 24 754 92 5 5.4 2.7 88.2 114.1 10.9 34.8 .207 .334 .320 .323 .367 38.0 29.7 17.0 3.38 4.48
2022 25 182 24 5 20.8 11.6 91.2 110.4 16.1 41.7 .315 .572 .569 .454 .524 50.0 20.9 18.6 21.60 10.06
Player 1793 195 10 5.1 2.4 87.7 114.1 11.5 35.4 .197 .306 .344 .313 .364 36.9 32.3 17.7
MLB 7.2 4.9 88.6 122.9 12.4 33.3 .245 .404 .315 .315 .368 37.0 22.2 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Hernández relies on 3 pitches.
Four Seamer
(61.0%) ,
Slider
(25.8%) ,
Curveball
(13.2%) ,


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+ If Available Pitches Click to Video.


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Pitch Tracking



Batted Ball Profile

AIR: Fly Balls + Line Drives + Popups All Batted Balls Batted Ball Breakdown
Season GB % AIR % FB % LD % PU % Pull % Straight % Oppo % Pull GB % Straight GB % Oppo GB % Pull AIR % Straight AIR % Oppo AIR %
2019 44.3 55.7 14.8 34.4 6.6 36.1 36.1 27.9 19.7 16.4 8.2 16.4 19.7 19.7
2020 50.0 50.0 11.1 22.2 16.7 33.3 44.4 22.2 27.8 22.2 0.0 5.6 22.2 22.2
2021 45.7 54.3 19.6 26.1 8.7 39.1 33.7 27.2 20.7 18.5 6.5 18.5 15.2 20.7
2022 33.3 66.7 33.3 25.0 8.3 50.0 29.2 20.8 20.8 12.5 0.0 29.2 16.7 20.8
Player 44.1 55.9 19.0 28.2 8.7 39.0 34.9 26.2 21.0 17.4 5.6 17.9 17.4 20.5
MLB 44.2 55.8 24.0 24.7 7.1 37.4 37.4 25.1 20.6 17.6 5.9 16.7 19.7 19.3
! Note: All figures in this table cover the period 2015-present.

Quality of Contact

Season Weak % Topped % Under % Flare/Burner % Solid % Barrel % Barrel/PA
2019 3.3 32.8 21.3 31.1 9.8 0.0 0.0
2020 11.1 33.3 27.8 27.8 0.0 0.0 0.0
2021 5.4 37.0 22.8 26.1 3.3 5.4 2.7
2022 0.0 20.8 20.8 37.5 0.0 20.8 11.6
Player 4.6 33.3 22.6 29.2 4.6 5.1 2.4
MLB 4.0 32.4 24.9 24.4 5.9 7.2 4.9
! Note: All figures in this table cover the period 2015-present.

Pitch Movement


How this works: This section shows two different ways to evaluate pitch movement. On the left, “Total Movement” shows the real-world movement of a pitch, including the forces of gravity, which affects every pitch thrown. Since gravity requires time, and slower pitches aren't 'better' just because they have more time to move, a pitch's movement is compared to other pitches of the same pitch type, within +/- 2 MPH and +/- 0.5 feet of extension/release. On the right, Induced Movement (or IVB) is reported without gravity, and attempts to isolate movement created by the pitcher's ability to spin and manipulate the ball.
Total Movement (in inches, w/ gravity)Induced Movement (in inches, w/o gravity)
YearPitchTeamHand#MPHVertical
Drop
vs.
Comparable
Horizontal
Break
vs.
Comparable
Vertical
Break
vs. AvgHorizontal
Break
vs. Avg
2022 Curveball BOS L 24 78.3 54.0 1.9 16.4GLV 3.6 -8.8 -0.3 16.4GLV 8.3
2022 4-Seam Fastball BOS L 111 94.3 17.0 -0.4 3.2ARM -6.2 13.6 -2.5 3.2ARM -4.3
2022 Slider BOS L 47 84.2 37.1 0.1 5.3GLV -1.2 1.2 0.7 5.3GLV 0.4
2021 Sinker BOS L 7 95.2 18.1 -2.5 12.6ARM -2.5 12.2 -2.7 12.6ARM -2.1
2021 4-Seam Fastball BOS L 551 94.8 17.2 -1.8 4.8ARM -3.9 13.1 -3.0 4.8ARM -2.8
2021 Curveball BOS L 41 79.5 51.7 -0.5 15.3GLV 3.9 -8.0 -1.0 15.3GLV 7.6
2021 Slider BOS L 155 83.5 39.0 0.9 6.9GLV 0.0 0.1 1.5 6.9GLV 2.1
! Note: Years are in reverse order.

Run Values by Pitch Type

Year Pitch Type Team RV/100 Run Value Pitches % PA BA SLG wOBA Whiff% K% PutAway % xBA xSLG xwOBA Hard Hit %
2022 4-Seam Fastball -4.1 -5 111 61.0 22 .357 .857 .575 40.0 27.3 18.2 .331 .684 .531 50.0
2022 Slider -11.2 -5 47 25.8 15 .643 1.071 .793 20.0 13.3 11.8 .354 .585 .425 58.3
2022 Curveball 2.2 1 24 13.2 6 .000 .000 .117 33.3 16.7 11.1 .163 .224 .254 25.0
2021 4-Seam Fastball 0.2 1 551 73.1 147 .182 .282 .326 30.8 27.2 25.0 .211 .334 .341 37.0
2021 Slider -2.3 -4 155 20.6 28 .286 .607 .373 31.7 35.7 25.0 .226 .390 .261 44.4
2021 Curveball -0.4 0 41 5.4 5 .250 .250 .320 50.0 60.0 27.3 .021 .021 .155 0.0
2021 Sinker -2.0 0 7 0.9 2 .000 .000 .350 66.7 50.0 50.0 -- -- .350 --
! Note: Years are in reverse order.
! Note: To better align with other values, positive numbers (red) are good, and negative numbers (blue) are poor.

Spin Direction

Year Pitch Type Pitches MPH Active Spin % Total Movement (In.) Spin-Based Observed Deviation
2022 Curveball 23 78.2 88 20.7 4:30 4:15 15
2022 4-Seam Fastball 110 94.3 69 13.5 11:00 11:30 -30
2022 Slider 47 84.2 33 6.1 2:30 3:00 -30
2021 Curveball 39 79.5 75 19.5 4:15 4:00 15
2021 4-Seam Fastball 530 94.8 71 13.6 11:00 11:15 -15
2021 Slider 153 83.5 35 7.8 3:15 3:15 0
! Note: Years are in reverse order.
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! Note: This table is showing data from the PITCHER perspective.
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Pitcher Arm Angle

! Note: Data is available from 2020 through the present.
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Statcast Pitching Run Value

Runs
Year Team PA Pitches Heart Shadow Chase Waste All
2019 146 681 1 11 -6 -7 0
2020 40 176 2 3 -1 -1 2
2021 182 754 8 6 -11 -5 -3
2022 43 182 -3 -2 -2 -2 -9
Player 411 1,793 8 17 -21 8 -11
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Plate Discipline

Season Pitches Zone % Zone Swing % Zone Contact % Chase % Chase Contact % Edge % 1st Pitch Strike % Swing % Whiff % Meatball % Meatball Swing %
2019 681 47.7 62.2 67.8 21.6 55.8 43.5 41.1 41.0 35.5 5.1 74.3
2020 176 51.1 62.2 78.6 27.9 58.3 40.3 67.5 45.5 27.5 11.9 71.4
2021 754 52.9 62.7 72.8 15.5 47.3 42.8 52.7 40.5 31.8 7.4 80.4
2022 182 53.3 70.1 67.6 18.8 62.5 45.6 48.8 46.2 33.3 5.5 70.0
Player 1,793 50.8 63.2 71.0 19.5 54.1 43.1 49.6 41.7 32.9 6.8 76.2
MLB 48.9 67.0 82.5 28.4 58.0 42.7 61.1 47.3 25.0 7.3 76.3
! Note: All figures in this table cover the period 2015-present.

Percentile Rankings

Year xwOBA /
xERA
xBA xSLG xISO xOBP Brl Brl% EV Hard
Hit%
K% BB% Whiff% Chase
Rate
FB
Velo
FB
Spin
CB
Spin
Extension
2019 82 73 92
2020 67 68 82
2021 72 72 87
2022 57 82 88
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Expected Home Runs

Adjusted

Year Team Avg HR Trot Actual HR xHR HR-xHR Doubters Mostly Gone No Doubters No Doubter %
2019 22.92 1 0.8 0 2 1 0 0.0
2021 23.94 7 4.9 2 3 2 3 42.9
2022 24.05 4 2.5 2 2 1 2 50.0
Player 23.89 12 8.2 4 7 4 5 41.7
Note: xHR tells how many of this pitcher's batted balls allowed would have been out of other stadiums. The "Adjusted" view here accounts for different wall heights, distances and environmental effects using Statcast Park Factor data.
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Expected Home Runs by Park

Adjusted

Year HR
2019 1 2 1 3 1 1 1 0 1 0 1 2 0 0 1 0 0 0 1 1 0 1 2 0 0 1 1 1 1 1 1
2021 7 5 7 5 5 4 5 5 3 4 4 6 5 5 5 5 5 5 5 5 5 4 6 5 5 4 6 6 5 4 5
2022 4 3 2 3 2 2 2 3 2 3 2 2 3 3 3 2 2 3 2 2 3 2 4 2 2 2 3 2 3 2 3
Player 12 10 10 11 8 7 8 8 6 7 7 10 8 8 9 7 7 8 8 8 8 7 12 7 7 7 10 9 9 7 9
Note: xHR tells how many of this pitcher's batted balls allowed would have been out of other stadiums. The "Adjusted" view here accounts for different wall heights, distances and environmental effects using Statcast Park Factor data.
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Year to Year Changes

2022 +/-   2021 +/-   2020 +/-   2019
Results
BA .424 +.221 .203 +.042 .161 -.070 .231
xBA .315 +.108 .207 +.049 .158 -.004 .162
OBP .558 +.199 .359 +.009 .350 -.034 .384
xOBP .474 +.110 .364 +.016 .348 +.019 .329
SLG .818 +.475 .343 +.182 .161 -.181 .342
xSLG .572 +.238 .334 +.134 .200 -.026 .226
ISO .394 +.254 .140 +.140 .000 -.111 .111
xISO .257 +.130 .127 +.086 .041 -.022 .063
BABIP .500 +.221 .279 +.001 .278 -.163 .441
wOBA .569 +.249 .320 +.052 .268 -.059 .327
xwOBA .454 +.131 .323 +.043 .280 +.013 .267
wOBACON .729 +.367 .362 +.117 .245 -.222 .467
xwOBACON .524 +.157 .367 +.096 .271 -.052 .323
BACON .583 +.264 .319 +.041 .278 -.172 .450
xBACON .433 +.104 .329 +.057 .272 -.044 .316
Statcast Hit Metrics
Hard Hit % 50.0 +12.0 38.0 +4.7 33.3 +2.2 31.1
Avg Exit Velocity 91.2 +3.0 88.2 +3.8 84.4 -2.0 86.4
Launch Angle Sweet-Spot % 41.7 +6.9 34.8 +12.6 22.2 -15.5 37.7
Barrel % 20.8 +15.4 5.4 +5.4 0.0 0.0 0.0
Avg Launch Angle 16.1 +5.2 10.9 -2.7 13.6 +3.9 9.7
Statcast Bat Tracking
Bat Speed 0.0 -- -- -- -- -- --
Attack Angle -- -- -- -- -- --
Ideal Attack Angle % 0.0 -- -- -- -- -- --
Attack Direction -- -- -- -- -- --
Swing Path - Tilt -- -- -- -- -- --
Swing Length 0.0 -- -- -- -- -- --
Statcast Pitch Metrics
Fastball Velocity 94.3 -0.5 94.8 +0.5 94.3 -1.2 95.5
Breaking Velocity 82.2 -0.5 82.7 -0.3 83.0 +0.4 82.6
Offspeed Velocity 0.0 -- -- -- -- -- --
Batted Ball Results
Barrels 5 0 5 +5 0 0 0
Popup % 8.3 -0.4 8.7 -8.0 16.7 +10.1 6.6
Flyball % 33.3 +13.7 19.6 +8.5 11.1 -3.7 14.8
Line Drive % 25.0 -1.1 26.1 +3.9 22.2 -12.2 34.4
Groundball % 33.3 -12.4 45.7 -4.3 50.0 +5.7 44.3
Pull % 50.0 +10.9 39.1 +5.8 33.3 -2.8 36.1
Straight Away % 29.2 -4.5 33.7 -10.7 44.4 +8.3 36.1
Opposite Field % 20.8 -6.4 27.2 +5.0 22.2 -5.7 27.9
Weak Contact % 0.0 -5.4 5.4 -5.7 11.1 +7.8 3.3
Pull Airball % 29.2 +10.7 18.5 +12.9 5.6 -10.8 16.4
Topped Contact % 20.8 -16.2 37.0 +3.7 33.3 +0.5 32.8
Under Contact % 20.8 -2.0 22.8 -5.0 27.8 +6.5 21.3
Flare/Burner Contact % 37.5 +11.4 26.1 -1.7 27.8 -3.3 31.1
Solid Contact % 0.0 -3.3 3.3 +3.3 0.0 -9.8 9.8
HR/FB % 50.0 +22.2 27.8 +27.8 0.0 -11.1 11.1
Popups 2 -6 8 +5 3 -1 4
Flyballs 8 -10 18 +16 2 -7 9
Line Drives 6 -18 24 +20 4 -17 21
Groundballs 8 -34 42 +33 9 -18 27
Plate Discipline
In Zone % 53.3 +0.4 52.9 +1.8 51.1 +3.4 47.7
Out of Zone % 46.7 -0.4 47.1 -1.8 48.9 -3.4 52.3
Edge % 45.6 +2.8 42.8 +2.5 40.3 -3.2 43.5
Zone Swing % 70.1 +7.4 62.7 +0.5 62.2 0.0 62.2
Out of Zone Swing % 18.8 +3.3 15.5 -12.4 27.9 +6.3 21.6
In Zone Contact % 67.6 -5.2 72.8 -5.8 78.6 +10.8 67.8
Out of Zone Contact % 62.5 +15.2 47.3 -11.0 58.3 +2.5 55.8
Whiff % 33.3 +1.5 31.8 +4.3 27.5 -8.0 35.5
First Strike % 48.8 -3.9 52.7 -14.8 67.5 +26.4 41.1
First Pitch Swing % 27.9 +4.3 23.6 +6.1 17.5 -1.7 19.2
Swing % 46.2 +5.7 40.5 -5.0 45.5 +4.5 41.0
Meatball Swing % 70.0 -10.4 80.4 +9.0 71.4 -2.9 74.3
Meatball % 5.5 -1.9 7.4 -4.5 11.9 +6.8 5.1
Zone Swing & Miss % 32.4 +5.2 27.2 +5.8 21.4 -10.8 32.2
Out of Zone Swing & Miss % 37.5 -15.2 52.7 +11.0 41.7 -2.5 44.2
In Zone 97 -302 399 +309 90 -235 325
Out of Zone 85 -270 355 +269 86 -270 356
Edge 83 -240 323 +252 71 -225 296
In Zone Swings 68 -182 250 +194 56 -146 202
Out of Zone Swings 16 -39 55 +31 24 -53 77
In Zone Swing & Misses 22 -46 68 +56 12 -53 65
Out of Zone Swing & Misses 6 -23 29 +19 10 -24 34
Basic
Pitches 182 -572 754 +578 176 -505 681
PA 43 -139 182 +142 40 -107 147
AB 33 -110 143 +112 31 -86 117
Hits 14 -15 29 +24 5 -22 27
Singles 9 -10 19 +14 5 -11 16
Doubles 1 -4 5 +5 0 -10 10
Triples 0 0 0 0 0 0 0
Home Runs 4 -1 5 +5 0 -1 1
Walks 8 -23 31 +23 8 -18 26
Strikeouts 9 -45 54 +41 13 -44 57
K% 20.9 -8.8 29.7 -2.8 32.5 -6.3 38.8
BB% 18.6 +1.6 17.0 -3.0 20.0 +2.3 17.7
HBP 2 -3 5 +4 1 -2 3
Batted Balls 24 -68 92 +74 18 -43 61
Number of Fastballs 111 -447 558 +430 128 -378 506
Number of Offspeed 0 0 0 0 0 0 0
Number of Breaking 71 -125 196 +148 48 -127 175
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2019 Shifts 146 .327 91 0 0.0 55 8 14.5
2020 Shifts 40 .268 31 7 22.6 9 0 0.0
2021 Shifts 181 .322 111 16 14.4 70 32 45.7
2022 Shifts 43 .569 27 3 11.1 16 7 43.8
! Note: Shifts are through the 2022 season, Shaded starting from the 2023 season, Shift: three or more infielders are on the same side of second base, Shade: positioned outside of their typical responsible slices of the field.
Learn more about how positioning is defined here

Pitch Tempo

Bases EmptyRunners On Base
SeasonTeamPitchesTempoFast %Slow %PitchesTempoFast %Slow %
2019 191 21.9 3.7% 3.7% 147 23.9 0.0% 10.9%
2020 37 19.8 0.0% 8.1% 40 21.3 0.0% 12.5%
2021 228 19.9 3.5% 2.6% 139 22.5 0.0% 5.0%
2022 46 19.5 4.3% 2.2% 40 20.3 0.0% 0.0%

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Pitch Distribution