DJ Herz
P | Bats/Throws: R/L | 6' 2" 197LBS | Age: 23
Draft: 2019 | Rd: 8, #252, Chicago Cubs | Terry Sanford HS
W L ERA G GS SV IP SO WHIP
2024 1 3 5.17 7 7 0 31.1 41 1.40
1 Season 1 3 5.17 7 7 0 31.1 41 1.40
G W-L ERA IP SO WHIP
2024 7 1-3 5.17 31.1 41 1.40
1 Season 7 1-3 5.17 31.1 41 1.40
MLB Percentile Rankings
Pitch Distribution

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
2024 23 582 89 10 11.2 7.1 89.8 112.3 20.5 32.6 .223 .394 .339 .293 .384 39.3 29.1 6.4 5.17 3.43
Player 582 89 10 11.2 7.1 89.8 112.3 20.5 32.6 .223 .394 .339 .293 .384 39.3 29.1 6.4
MLB 7.0 4.8 88.5 122.4 12.3 33.1 .245 .406 .316 .315 .369 36.4 22.2 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Herz relies on 4 pitches.
Four Seamer
(53.4%) ,
Changeup
(26.3%) ,
Slider
(14.8%) ,
Knuckle Curve
(5.5%) ,


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Pitch Tracking



Batted Ball Profile

Season GB % FB % LD % PU % Pull % Straight % Oppo % Weak % Topped % Under % Flare/Burner % Solid % Barrel % Barrel/PA
2024 33.7 36.0 23.6 6.7 41.6 31.5 27.0 4.5 18.0 31.5 28.1 6.7 11.2 7.1
Player 33.7 36.0 23.6 6.7 41.6 31.5 27.0 4.5 18.0 31.5 28.1 6.7 11.2 7.1
MLB 44.5 23.6 24.8 7.0 37.1 37.5 25.3 3.9 32.7 24.8 24.4 5.8 7.0 4.8
! Note: All figures in this table cover the period 2015-present.

Pitch Movement


How this works: Every pitch is affected by the forces of gravity, which means that every pitch drops on its way from the mound to the plate. These numbers are reported with gravity, which makes them larger and different than other pitch movement numbers you may have seen. Since gravity requires time, and slower pitches aren’t ‘better’ just because they have more time to move, the movement of a pitch is compared to ‘average’ movement by comparing it to other MLB pitch types within +/- 2 MPH and from within +/- 0.5 feet of extension and release.
Vertical Movement (inches) Horizontal Movement (inches)
Year Pitch Team Hand # MPH Inches of Drop vs Avg % vs Avg Inches of Break vs Avg % Break vs Avg
2024 Curveball WSH L 32 80.9 44.3 -6.8 -13 0.1 -8.6 -99
2024 Changeup WSH L 153 82.9 32.4 -0.7 -2 15.0 1.4 10
2024 4-Seam Fastball WSH L 311 93.3 15.4 0.1 1 11.1 3.9 53
2024 Slider WSH L 86 86.3 32.8 -2.0 -6 0.3 -4.5 -95
! Note: Years are in reverse order.
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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 4-Seam Fastball 0.3 1 311 53.4 73 .308 .446 .380 32.3 31.5 23.0 .201 .346 .284 42.9
2024 Changeup -1.3 -2 153 26.3 41 .231 .436 .315 28.8 29.3 20.3 .238 .410 .286 28.6
2024 Slider -2.2 -2 86 14.8 23 .238 .571 .367 23.7 21.7 13.2 .205 .460 .315 43.8
2024 Curveball 1.8 1 32 5.5 4 .250 .250 .225 50.0 25.0 20.0 .511 .665 .504 66.7
! Note: Years are in reverse order.
! Note: To better align with other values, positive numbers (red) are good, and negative numbers (blue) are poor.
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Spin Direction

Year Pitch Type Pitches MPH Active Spin % Total Movement (In.) Spin-Based Observed Deviation
2024 Changeup 150 82.9 93 16.9 9:30 9:45 -15
2024 Curveball 32 80.9 24 4.9 4:30 6:00 -90
2024 4-Seam Fastball 305 93.3 99 19.2 10:45 10:45 0
2024 Slider 83 86.3 24 3.6 11:45 12:30 -45
! Note: This table is showing data from the PITCHER perspective.
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Swing/Take

Runs
Year Team PA Pitches Heart Shadow Chase Waste All
2024 141 582 -1 5 -3 -3 -2
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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 %
2024 582 51.5 66.7 74.5 29.1 54.9 42.1 60.3 48.5 30.9 8.2 75.0
Player 582 51.5 66.7 74.5 29.1 54.9 42.1 60.3 48.5 30.9 8.2 75.0
MLB 48.6 67.0 82.0 28.4 57.9 42.6 61.0 47.2 24.8 7.3 76.2
! 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 72 76 53 33 87 47 6 25 44 89 74 88 58 35 66 73
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Expected Home Runs

Year Team Avg HR Trot Actual HR xHR HR-xHR Doubters Mostly Gone No Doubters No Doubter %

Expected Home Runs by Park

Year HR

Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2024 Shades 141 .339 112 1 0.9 29 3 10.3
! 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 %
2024 171 14.1 65.5% 0.0% 79 17.6 7.6% 3.8%
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Pitch Distribution