P | Atlanta Braves
Bats/Throws: R/R | 5' 10" 220 lbs | Age: 29
W L ERA G GS SV IP SO WHIP
2023 1 0 7.36 4 0 0 3.2 6 2.45
2024 3 0 2.50 16 0 0 18 26 1.11
2025 4 3 3.41 39 0 0 37 33 1.54
3 Seasons 8 3 3.38 59 0 0 58.2 65 1.47
G W-L ERA IP SO WHIP
2023 4 1-0 7.36 3.2 6 2.45
2024 16 3-0 2.50 18 26 1.11
2025 39 4-3 3.41 37 33 1.54
3 Seasons 59 8-3 3.38 58.2 65 1.47
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 26 83 11 0 0.0 0.0 92.6 101.9 22.6 54.5 .284 .421 .425 .361 .467 63.6 30.0 15.0 7.36 5.70
2024 27 330 37 1 2.7 1.4 85.2 111.9 19.5 27.0 .168 .230 .221 .245 .296 27.0 35.1 13.5 2.50 2.47
2025 28 717 99 9 9.1 5.5 89.4 113.5 10.2 30.3 .207 .335 .310 .318 .309 37.4 20.2 17.8 3.40 4.25
Player 1130 147 10 6.8 3.9 88.6 113.5 13.5 31.3 .202 .311 .294 .300 .318 36.7 25.3 16.3
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 2 pitches.
Slider
(56.1%) ,
Four Seamer
(43.9%) ,


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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 27.3 72.7 36.4 36.4 0.0 27.3 45.5 27.3 9.1 9.1 9.1 18.2 36.4 18.2
2024 37.8 62.2 32.4 18.9 10.8 32.4 43.2 24.3 13.5 21.6 2.7 18.9 21.6 21.6
2025 45.5 54.5 28.3 20.2 6.1 36.4 34.3 29.3 22.2 19.2 4.0 14.1 15.2 25.3
Player 42.2 57.8 29.9 21.1 6.8 34.7 37.4 27.9 19.0 19.0 4.1 15.6 18.4 23.8
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 0.0 18.2 18.2 36.4 27.3 0.0 0.0
2024 2.7 29.7 40.5 24.3 0.0 2.7 1.4
2025 4.0 35.4 31.3 17.2 3.0 9.1 5.5
Player 3.4 32.7 32.7 20.4 4.1 6.8 3.9
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
2025 4-Seam Fastball ATL R 315 97.7 12.7 0.7 8.8ARM 0.9 16.1 0.3 8.8ARM 1.2
2025 Slider ATL R 402 88.3 34.0 1.1 2.7GLV -0.6 0.9 0.8 2.7GLV -1.9
2024 Slider ATL R 179 89.0 33.8 1.6 3.5GLV -0.2 0.5 1.2 3.5GLV -1.3
2024 4-Seam Fastball ATL R 145 97.4 12.5 0.9 9.5ARM 1.6 16.4 0.7 9.5ARM 1.9
2024 Sinker ATL R 6 97.9 13.2 -7.5 14.0ARM -1.3 15.4 -8.2 14.0ARM -0.9
! 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 %
2025 Slider -0.9 -3 402 56.1 96 .237 .350 .338 33.0 16.7 11.9 .225 .350 .322 34.4
2025 4-Seam Fastball 0.7 2 315 43.9 66 .157 .255 .289 23.8 25.8 17.9 .179 .312 .314 42.9
2024 Slider 1.4 2 179 54.2 42 .135 .135 .190 42.4 40.5 22.4 .178 .215 .237 20.0
2024 4-Seam Fastball 1.2 2 145 43.9 29 .208 .250 .319 26.1 31.0 24.3 .139 .172 .233 33.3
2024 Sinker 10.8 1 6 1.8 2 .000 .000 .000 25.0 0.0 0.0 .332 1.216 .632 50.0
! 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
2025 4-Seam Fastball 314 97.7 99 18.1 1:15 1:00 15
2025 Slider 401 88.3 18 3.9 10:30 8:45 105
2024 4-Seam Fastball 145 97.4 99 18.7 1:15 1:00 15
2024 Slider 179 89.0 20 4.5 10:15 8:45 90
! 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
2023 20 83 -1 -1 0 -1 -2
2024 73 330 5 4 -1 -2 5
2025 162 717 6 5 -6 -5 -1
Player 255 1,130 9 8 -8 9 1
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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 83 41.0 73.5 76.0 38.8 52.6 36.1 55.0 53.0 34.1 1.2 100.0
2024 330 45.2 66.4 79.8 32.6 40.7 38.8 54.8 47.9 34.8 6.7 86.4
2025 717 45.6 64.8 80.7 24.6 49.0 40.9 54.3 43.0 29.2 6.0 69.8
Player 1,130 45.1 65.9 80.1 28.1 46.6 39.9 54.5 45.1 31.4 5.8 75.8
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
2024 94 80 36
2025 94 60 21
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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 22.31 1 0.3 1 0 1 0 0.0
2025 27.09 3 3.3 0 1 2 2 66.7
Player 25.89 4 3.6 0 1 3 2 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 1 0 1 1 1 0 0 1 0 0 0 1 0 0 1 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0
2025 3 2 3 4 5 4 4 4 4 2 3 4 4 4 4 4 3 2 3 4 3 2 4 3 3 2 3 3 3 3 3
Player 4 2 4 5 6 4 4 5 4 2 3 5 4 4 5 5 3 2 3 4 3 2 5 3 3 2 3 3 3 4 3
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

2025 +/-   2024 +/-   2023
Results
BA .206 +.047 .159 -.194 .353
xBA .207 +.039 .168 -.116 .284
OBP .358 +.074 .284 -.166 .450
xOBP .359 +.067 .292 -.100 .392
SLG .313 +.138 .175 -.354 .529
xSLG .335 +.105 .230 -.191 .421
ISO .107 +.091 .016 -.160 .176
xISO .128 +.066 .062 -.074 .136
BABIP .253 -.017 .270 -.230 .500
wOBA .310 +.089 .221 -.204 .425
xwOBA .318 +.073 .245 -.116 .361
wOBACON .297 +.049 .248 -.335 .583
xwOBACON .309 +.013 .296 -.171 .467
BACON .276 +.006 .270 -.275 .545
xBACON .277 -.010 .287 -.153 .440
Statcast Hit Metrics
Hard Hit % 37.4 +10.4 27.0 -36.6 63.6
Avg Exit Velocity 89.4 +4.2 85.2 -7.4 92.6
Launch Angle Sweet-Spot % 30.3 +3.3 27.0 -27.5 54.5
Barrel % 9.1 +6.4 2.7 +2.7 0.0
Avg Launch Angle 10.2 -9.3 19.5 -3.1 22.6
Statcast Bat Tracking
Bat Speed 71.8 +1.4 70.4 -1.2 71.6
Attack Angle -1° 10° 10°
Ideal Attack Angle % 44.3 -1.0 45.3 -2.1 47.4
Attack Direction +2° -2°
Swing Path - Tilt 33° 33° 33°
Swing Length 7.4 +0.1 7.3 -0.2 7.5
Statcast Pitch Metrics
Fastball Velocity 97.7 +0.3 97.4 +1.4 96.0
Breaking Velocity 88.3 -0.7 89.0 +0.5 88.5
Offspeed Velocity 0.0 -- -- -- --
Batted Ball Results
Barrels 9 +8 1 +1 0
Popup % 6.1 -4.7 10.8 +10.8 0.0
Flyball % 28.3 -4.1 32.4 -4.0 36.4
Line Drive % 20.2 +1.3 18.9 -17.5 36.4
Groundball % 45.5 +7.7 37.8 +10.5 27.3
Pull % 36.4 +4.0 32.4 +5.1 27.3
Straight Away % 34.3 -8.9 43.2 -2.3 45.5
Opposite Field % 29.3 +5.0 24.3 -3.0 27.3
Weak Contact % 4.0 +1.3 2.7 +2.7 0.0
Pull Airball % 14.1 -4.8 18.9 +0.7 18.2
Topped Contact % 35.4 +5.7 29.7 +11.5 18.2
Under Contact % 31.3 -9.2 40.5 +22.3 18.2
Flare/Burner Contact % 17.2 -7.1 24.3 -12.1 36.4
Solid Contact % 3.0 +3.0 0.0 -27.3 27.3
HR/FB % 10.7 +10.7 0.0 -25.0 25.0
Popups 6 +2 4 +4 0
Flyballs 28 +16 12 +8 4
Line Drives 20 +13 7 +3 4
Groundballs 45 +31 14 +11 3
Plate Discipline
In Zone % 45.6 +0.4 45.2 +4.2 41.0
Out of Zone % 54.4 -0.4 54.8 -4.2 59.0
Edge % 40.9 +2.1 38.8 +2.7 36.1
Zone Swing % 64.8 -1.6 66.4 -7.1 73.5
Out of Zone Swing % 24.6 -8.0 32.6 -6.2 38.8
In Zone Contact % 80.7 +0.9 79.8 +3.8 76.0
Out of Zone Contact % 49.0 +8.3 40.7 -11.9 52.6
Whiff % 29.2 -5.6 34.8 +0.7 34.1
First Strike % 54.3 -0.5 54.8 -0.2 55.0
First Pitch Swing % 27.8 -7.8 35.6 -4.4 40.0
Swing % 43.0 -4.9 47.9 -5.1 53.0
Meatball Swing % 69.8 -16.6 86.4 -13.6 100.0
Meatball % 6.0 -0.7 6.7 +5.5 1.2
Zone Swing & Miss % 19.3 -0.9 20.2 -3.8 24.0
Out of Zone Swing & Miss % 51.0 -8.3 59.3 +11.9 47.4
In Zone 327 +178 149 +115 34
Out of Zone 390 +209 181 +132 49
Edge 293 +165 128 +98 30
In Zone Swings 212 +113 99 +74 25
Out of Zone Swings 96 +37 59 +40 19
In Zone Swing & Misses 41 +21 20 +14 6
Out of Zone Swing & Misses 49 +14 35 +26 9
Basic
Pitches 717 +387 330 +247 83
PA 163 +89 74 +54 20
AB 131 +68 63 +46 17
Hits 27 +17 10 +4 6
Singles 19 +10 9 +4 5
Doubles 5 +4 1 +1 0
Triples 0 0 0 0 0
Home Runs 3 +3 0 -1 1
Walks 29 +19 10 +7 3
Strikeouts 33 +7 26 +20 6
K% 20.2 -14.9 35.1 +5.1 30.0
BB% 17.8 +4.3 13.5 -1.5 15.0
HBP 2 +1 1 +1 0
Batted Balls 99 +62 37 +26 11
Number of Fastballs 315 +164 151 +111 40
Number of Offspeed 0 0 0 0 0
Number of Breaking 402 +223 179 +136 43
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2023 Shades 20 .425 8 6 75.0 12 5 41.7
2024 Shades 73 .221 44 0 0.0 29 16 55.2
2025 Shades 162 .310 90 0 0.0 72 46 63.9
! 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 14 13.1 78.6% 0.0% 15 13.7 80.0% 0.0%
2024 87 13.3 75.9% 0.0% 51 15.0 49.0% 0.0%
2025 170 13.7 74.1% 0.6% 145 15.7 35.2% 0.7%

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Pitch Distribution