P | Bats/Throws: L/L | 6' 3" 205 lbs | Age: 27
W L ERA G GS SV IP SO WHIP
2023 1 3 4.97 50 0 0 50.2 62 1.36
2024 1 1 3.38 7 0 1 5.1 4 1.69
2 Seasons 2 4 4.82 57 0 1 56 66 1.39
G W-L ERA IP SO WHIP
2023 50 1-3 4.97 50.2 62 1.36
2024 7 1-1 3.38 5.1 4 1.69
2 Seasons 57 2-4 4.82 56 66 1.39
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
2023 25 861 138 12 8.7 5.4 89.2 112.2 16.4 34.8 .236 .418 .329 .314 .401 34.8 27.8 9.9 4.97 4.16
2024 26 89 17 4 23.5 16.0 91.3 105.1 24.3 47.1 .300 .673 .350 .444 .505 47.1 16.0 16.0 3.38 9.53
Player 950 155 16 10.3 6.5 89.4 112.2 17.3 36.1 .242 .443 .331 .327 .412 36.1 26.6 10.5
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

Hernandez relies on 2 pitches.
Slider
(66.3%) ,
Four Seamer
(33.7%) ,


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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 %
2023 39.9 60.1 29.7 21.7 8.7 41.3 30.4 28.3 23.2 12.3 4.3 18.1 18.1 23.9
2024 17.6 82.4 58.8 23.5 0.0 58.8 17.6 23.5 11.8 5.9 0.0 47.1 11.8 23.5
Player 37.4 62.6 32.9 21.9 7.7 43.2 29.0 27.7 21.9 11.6 3.9 21.3 17.4 23.9
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
2023 4.3 26.8 28.3 26.1 5.1 8.7 5.4
2024 0.0 11.8 35.3 23.5 5.9 23.5 16.0
Player 3.9 25.2 29.0 25.8 5.2 10.3 6.5
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
2024 4-Seam Fastball PIT L 30 93.1 14.9 -0.1 8.5ARM 1.7 16.9 1.2 8.5ARM 0.4
2024 Slider PIT L 59 81.6 43.0 2.3 0.1GLV -5.1 -1.9 3.4 0.1GLV -4.7
2023 Changeup PIT L 94 88.7 23.8 -5.1 12.7ARM -1.8 10.9 -4.7 12.7ARM -1.4
2023 4-Seam Fastball PIT L 286 94.6 14.4 -0.2 9.1ARM 2.2 16.2 0.7 9.1ARM 1.4
2023 Slider PIT L 481 82.9 40.8 1.5 0.1GLV -5.6 -1.0 2.8 0.1GLV -5.0
! 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 %
2024 Slider -0.6 0 59 66.3 15 .167 .417 .333 41.4 20.0 15.8 .265 .611 .434 44.4
2024 4-Seam Fastball -1.4 0 30 33.7 9 .333 .556 .378 20.0 11.1 16.7 .346 .756 .466 50.0
2023 Slider 1.7 8 481 55.9 117 .170 .259 .216 39.5 42.7 29.8 .176 .258 .210 23.8
2023 4-Seam Fastball -2.9 -8 286 33.2 77 .322 .729 .505 13.7 11.7 15.5 .304 .647 .456 40.4
2023 Changeup -3.7 -4 94 10.9 26 .346 .731 .450 21.7 11.5 12.5 .340 .597 .394 52.2
! 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
2024 4-Seam Fastball 30 93.1 99 18.6 11:15 11:00 15
2024 Slider 59 81.6 22 4.2 4:45 6:00 -75
2023 Changeup 93 88.7 99 16.7 10:30 10:15 15
2023 4-Seam Fastball 282 94.6 99 18.4 11:00 11:00 0
2023 Slider 473 82.9 19 3.4 4:45 6:00 -75
! Note: Years are in reverse order.
! 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
2023 220 861 -8 11 -5 -3 -4
2024 24 89 -1 1 -1 0 -1
Player 244 950 -8 13 -6 -8 -5
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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 %
2023 861 49.4 64.6 80.0 27.0 49.2 42.5 59.1 45.6 29.3 6.6 66.7
2024 89 56.2 64.0 78.1 30.8 33.3 43.8 62.5 49.4 34.1 11.2 80.0
Player 950 50.0 64.5 79.8 27.3 47.7 42.6 59.4 46.0 29.7 7.0 68.7
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
2023 50 61 37 29 52 68 34 43 78 80 28 72 25 60 12 18
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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 %
2023 23.76 9 8.7 0 2 5 4 44.4
2024 22.04 1 1.9 -1 1 1 1 100.0
Player 23.59 10 10.7 -1 3 6 5 50.0
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
2023 9 7 5 9 9 9 9 8 9 9 9 10 7 8 9 9 9 9 10 9 9 9 9 10 9 8 9 9 10 9 8
2024 1 1 2 3 2 2 2 2 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 2 2 2
Player 10 8 7 12 11 11 11 10 11 11 11 12 8 10 11 11 11 11 12 11 11 11 11 12 10 10 11 11 12 11 10
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

2024 +/-   2023
Results
BA .238 -.001 .239
xBA .300 +.064 .236
OBP .360 +.043 .317
xOBP .412 +.097 .315
SLG .476 +.014 .462
xSLG .673 +.255 .418
ISO .238 +.015 .223
xISO .373 +.191 .182
BABIP .250 -.049 .299
wOBA .350 +.021 .329
xwOBA .444 +.130 .314
wOBACON .372 -.052 .424
xwOBACON .505 +.104 .401
BACON .294 -.052 .346
xBACON .370 +.027 .343
Statcast Hit Metrics
Hard Hit % 47.1 +12.3 34.8
Avg Exit Velocity 91.3 +2.1 89.2
Launch Angle Sweet-Spot % 47.1 +12.3 34.8
Barrel % 23.5 +14.8 8.7
Avg Launch Angle 24.3 +7.9 16.4
Statcast Bat Tracking
Bat Speed 71.1 +0.7 70.4
Attack Angle 15° +1° 14°
Ideal Attack Angle % 39.3 -18.7 58.0
Attack Direction -15° -4° -11°
Swing Path - Tilt 31° -1° 32°
Swing Length 7.7 +0.1 7.6
Statcast Pitch Metrics
Fastball Velocity 93.1 -1.5 94.6
Breaking Velocity 81.6 -1.3 82.9
Offspeed Velocity 0.0 -- 88.7
Batted Ball Results
Barrels 4 -8 12
Popup % 0.0 -8.7 8.7
Flyball % 58.8 +29.1 29.7
Line Drive % 23.5 +1.8 21.7
Groundball % 17.6 -22.3 39.9
Pull % 58.8 +17.5 41.3
Straight Away % 17.6 -12.8 30.4
Opposite Field % 23.5 -4.8 28.3
Weak Contact % 0.0 -4.3 4.3
Pull Airball % 47.1 +29.0 18.1
Topped Contact % 11.8 -15.0 26.8
Under Contact % 35.3 +7.0 28.3
Flare/Burner Contact % 23.5 -2.6 26.1
Solid Contact % 5.9 +0.8 5.1
HR/FB % 10.0 -12.0 22.0
Popups 0 -12 12
Flyballs 10 -31 41
Line Drives 4 -26 30
Groundballs 3 -52 55
Plate Discipline
In Zone % 56.2 +6.8 49.4
Out of Zone % 43.8 -6.8 50.6
Edge % 43.8 +1.3 42.5
Zone Swing % 64.0 -0.6 64.6
Out of Zone Swing % 30.8 +3.8 27.0
In Zone Contact % 78.1 -1.9 80.0
Out of Zone Contact % 33.3 -15.9 49.2
Whiff % 34.1 +4.8 29.3
First Strike % 62.5 +3.4 59.1
First Pitch Swing % 41.7 +15.3 26.4
Swing % 49.4 +3.8 45.6
Meatball Swing % 80.0 +13.3 66.7
Meatball % 11.2 +4.6 6.6
Zone Swing & Miss % 21.9 +1.9 20.0
Out of Zone Swing & Miss % 66.7 +15.9 50.8
In Zone 50 -376 426
Out of Zone 39 -398 437
Edge 39 -328 367
In Zone Swings 32 -243 275
Out of Zone Swings 12 -106 118
In Zone Swing & Misses 7 -48 55
Out of Zone Swing & Misses 8 -52 60
Basic
Pitches 89 -772 861
PA 25 -198 223
AB 21 -176 197
Hits 5 -42 47
Singles 2 -20 22
Doubles 2 -13 15
Triples 0 -1 1
Home Runs 1 -8 9
Walks 4 -18 22
Strikeouts 4 -58 62
K% 16.0 -11.8 27.8
BB% 16.0 +6.1 9.9
HBP 0 -1 1
Batted Balls 17 -121 138
Number of Fastballs 30 -256 286
Number of Offspeed 0 -94 94
Number of Breaking 59 -422 481
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2023 Shades 220 .329 134 16 11.9 86 43 50.0
2024 Shades 23 .365 13 1 7.7 10 3 30.0
! 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 %
2023 258 15.6 39.1% 0.8% 142 18.1 2.8% 0.7%
2024 21 16.2 14.3% 0.0% 14 20.3 0.0% 7.1%

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Pitch Distribution