Mark Leiter Jr.
P | Bats/Throws: R/R | 6' 0" 210LBS | Age: 34
Draft: 2013 | Rd: 22, #661, Philadelphia Phillies | New Jersey Inst of Tech
W L ERA G GS SV IP SO WHIP
2023 1 3 3.50 69 0 4 64.1 77 1.12
2024 4 5 4.50 60 0 0 58 86 1.33
2025 2 3 3.95 16 0 1 13.2 21 1.24
6 Seasons 12 25 4.53 227 15 8 317.2 363 1.29
G W-L ERA IP SO WHIP
2023 69 1-3 3.50 64.1 77 1.12
2024 60 4-5 4.50 58 86 1.33
2025 16 2-3 3.95 13.2 21 1.24
6 Seasons 227 12-25 4.53 317.2 363 1.29
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
2017 26 1510 273 20 7.3 5.1 86.2 112.2 7.3 33.0 .263 .451 .333 .338 .395 33.8 21.3 7.8 4.96 4.99
2018 27 468 87 6 6.9 4.9 89.0 112.9 10.7 33.3 .292 .515 .409 .375 .432 39.1 17.9 9.8 7.71 6.27
2022 31 1086 177 11 6.2 3.9 87.2 116.8 10.4 30.5 .230 .378 .296 .306 .366 34.5 25.9 8.9 3.99 3.89
2023 32 1056 160 14 8.8 5.2 88.2 112.1 10.2 33.1 .227 .380 .293 .310 .381 39.4 28.6 8.9 3.50 4.04
2024 33 1015 145 12 8.3 4.7 88.8 110.4 11.3 33.1 .224 .348 .308 .288 .392 40.0 33.6 8.6 4.50 3.44
2025 34 235 31 2 6.5 3.4 83.0 109.2 13.3 38.7 .204 .342 .298 .281 .390 22.6 36.2 8.6 3.95 2.92
Player 5370 873 65 7.4 4.7 87.4 116.8 9.7 32.8 .242 .404 .318 .318 .389 36.1 26.2 8.6
MLB 7.0 4.8 88.5 122.4 12.3 33.2 .245 .405 .316 .315 .368 36.6 22.2 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Leiter relies on 4 pitches.
Split Finger
(35.3%) ,
Sinker
(34.0%) ,
Curveball
(23.8%) ,
Cutter
(6.8%) ,


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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 %
2017 49.5 50.5 20.5 26.0 4.0 38.8 38.1 23.1 23.8 19.8 5.9 15.0 18.3 17.2
2018 47.1 52.9 24.1 23.0 5.7 48.3 26.4 24.1 26.4 11.5 8.0 21.8 14.9 16.1
2022 49.2 50.8 22.0 21.5 7.3 42.4 35.6 22.0 23.7 19.8 5.6 18.6 15.8 16.4
2023 46.3 53.8 22.5 26.9 4.4 43.8 41.9 14.4 23.1 18.1 5.0 20.6 23.8 9.4
2024 46.2 53.8 20.7 25.5 7.6 49.0 31.7 19.3 22.1 17.9 6.2 26.9 13.8 13.1
2025 48.4 51.6 29.0 19.4 3.2 38.7 35.5 25.8 19.4 19.4 9.7 19.4 16.1 16.1
Player 48.0 52.0 21.9 24.6 5.5 43.1 36.0 20.8 23.5 18.3 6.1 19.6 17.6 14.8
MLB 44.4 55.6 23.8 24.7 7.1 37.2 37.4 25.2 20.6 17.8 5.9 16.6 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
2017 7.0 34.8 19.8 26.0 4.0 7.3 5.1
2018 3.4 28.7 21.8 28.7 6.9 6.9 4.9
2022 6.2 35.6 19.8 25.4 6.8 6.2 3.9
2023 6.9 37.5 18.8 23.1 5.0 8.8 5.2
2024 4.1 31.0 20.0 30.3 6.2 8.3 4.7
2025 9.7 25.8 25.8 29.0 3.2 6.5 3.4
Player 6.1 33.9 20.0 26.5 5.4 7.4 4.7
MLB 3.9 32.6 24.8 24.4 5.9 7.0 4.8
! 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 Cutter NYY R 16 89.4 28.2 -1.7 1.9GLV -0.7 6.0 -2.4 1.9GLV -0.4
2025 Split-Finger NYY R 83 86.0 31.9 -1.0 8.2ARM -2.9 5.3 -2.5 8.2ARM -3.1
2025 Curveball NYY R 56 74.1 68.2 6.6 8.1GLV -3.5 -17.5 7.7 8.1GLV -1.6
2025 Sinker NYY R 80 93.8 17.1 -5.4 14.5ARM -0.7 14.1 -6.8 14.5ARM -0.9
2024 Curveball NYY R 172 73.5 68.3 5.3 9.2GLV -2.1 -17.0 7.0 9.2GLV -0.2
2024 Sweeper NYY R 93 79.6 46.0 3.8 12.3GLV -2.2 -2.6 4.2 12.3GLV -1.9
2024 Cutter NYY R 76 88.6 28.0 -0.7 2.1GLV -0.8 6.6 -1.6 2.1GLV -0.6
2024 Changeup NYY R 2 83.8 34.0 2.1 7.4ARM -6.5 5.6 -0.7 7.4ARM -6.8
2024 4-Seam Fastball NYY R 15 91.9 15.8 0.4 6.6ARM -0.4 16.6 0.9 6.6ARM -1.0
2024 Sinker NYY R 290 91.5 20.7 -3.3 14.0ARM -0.7 11.9 -4.7 14.0ARM -0.9
2024 Split-Finger NYY R 366 84.2 34.4 0.0 6.4ARM -3.2 4.3 -1.7 6.4ARM -4.3
! 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 Split-Finger -1.6 -1 83 35.3 20 .211 .368 .270 50.0 55.0 20.8 .157 .306 .222 25.0
2025 Sinker 2.9 2 80 34.0 22 .200 .300 .300 18.9 22.7 45.5 .199 .237 .236 6.7
2025 Curveball -0.3 0 56 23.8 12 .300 .300 .417 35.3 33.3 44.4 .221 .294 .301 50.0
2025 Cutter 0.0 0 16 6.8 4 .333 .667 .488 28.6 25.0 20.0 .472 1.427 .762 50.0
2024 Split-Finger 2.1 8 366 36.1 110 .099 .149 .164 56.5 60.0 30.7 .119 .160 .168 31.4
2024 Sinker -2.1 -6 290 28.6 81 .386 .600 .485 9.9 9.9 19.5 .361 .564 .440 46.8
2024 Curveball 1.7 3 172 16.9 21 .158 .263 .229 50.7 28.6 27.3 .128 .162 .182 15.4
2024 Sweeper -2.4 -2 93 9.2 16 .313 .563 .372 39.4 12.5 10.5 .306 .457 .330 28.6
2024 Cutter -4.7 -4 77 7.6 25 .348 .696 .496 16.2 16.0 28.6 .267 .559 .375 57.9
2024 4-Seam Fastball -6.3 -1 15 1.5 1 1.000 2.000 1.250 33.3 0.0 0.0 .743 1.097 .782 100.0
2024 Changeup -26.9 -1 2 0.2 1 1.000 1.000 .900 50.0 0.0 0.0 .323 .367 .297 0.0
! 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 Curveball 56 74.1 97 22.9 6:45 6:45 0
2025 Cutter 16 89.4 54 7.6 11:45 11:00 45
2025 Split-Finger 75 86.0 88 10.6 1:45 2:15 -30
2025 Sinker 79 93.8 93 20.1 1:00 1:45 -45
2024 Curveball 170 73.5 96 22.8 6:45 6:45 0
2024 Cutter 75 88.6 51 6.2 12:15 11:15 60
2024 4-Seam Fastball 15 91.9 96 17.4 1:00 12:45 15
2024 Split-Finger 317 84.2 89 8.5 1:45 2:15 -30
2024 Sinker 288 91.5 91 18.3 1:00 1:45 -45
2024 Sweeper 93 79.6 53 14.3 7:30 8:15 -45
! 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
2017 392 1,508 5 6 -9 -7 -5
2018 120 467 -6 1 -3 -2 -10
2022 280 1,086 2 10 -6 -8 -3
2023 269 1,056 4 14 -3 -9 6
2024 255 1,015 -3 7 -1 -5 -3
2025 58 235 1 1 1 -2 1
Player 1,374 5,367 2 38 -21 2 -14
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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 %
2017 1,510 50.4 63.7 84.3 23.8 59.0 41.4 60.8 43.9 21.4 6.8 79.6
2018 468 45.9 67.9 85.6 26.9 58.8 39.7 58.2 45.7 22.9 7.5 74.3
2022 1,086 44.2 61.3 82.0 30.7 50.5 39.0 59.6 44.2 29.2 6.8 68.9
2023 1,056 44.0 65.4 78.3 27.7 44.5 39.5 61.0 44.3 32.3 7.0 63.5
2024 1,015 42.2 63.6 75.7 34.6 40.9 41.8 62.7 46.8 38.3 5.5 75.0
2025 235 43.4 61.8 74.6 27.1 44.4 40.0 55.2 42.1 34.3 5.1 66.7
Player 5,370 45.6 63.8 80.9 28.6 49.2 40.4 60.5 44.7 29.1 6.6 72.3
MLB 48.7 67.0 82.0 28.4 57.7 42.6 61.1 47.2 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
2017 23 27 24 22 28 34 24 76 45 46 59 27 13 21 4 14 86
2018 26 3 80
2022 47 59 51 45 36 72 70 78 76 70 34 73 64 12 2 21 77
2023 55 70 66 59 46 62 34 67 47 84 42 88 35 13 3 24 71
2024 73 71 76 78 65 72 37 50 38 96 40 99 96 15 4 21 71
2025 81 86 80 67 79 81 66 100 99 97 52 93 46 42 5 12 70
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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 %
2017 22.5 18 14.7 3 5 11 7 38.9
2018 22.6 7 6.1 1 4 2 4 57.1
2022 25.0 10 9.8 0 8 8 3 30.0
2023 24.8 7 7.4 0 1 7 3 42.9
2024 23.3 8 6.9 1 5 6 1 12.5
2025 25.5 1 1.4 0 0 2 0 0.0
Player 23.5 51 46.3 5 23 36 18 35.3
Note: xHR tells how many of this pitcher's home runs 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
2017 18 16 13 16 16 14 16 16 13 11 12 19 15 13 15 17 12 14 15 14 15 14 18 15 14 14 14 19 16 15 9
2018 7 7 6 6 6 6 6 6 5 6 6 8 6 6 6 6 6 6 6 7 6 7 6 6 5 6 6 7 6 6 5
2022 10 8 11 8 13 9 11 7 4 9 8 16 10 9 10 11 8 8 9 10 10 11 12 9 8 8 13 15 9 11 8
2023 7 7 8 5 9 7 9 6 4 7 7 5 9 7 7 6 9 7 6 9 8 8 10 9 8 6 7 9 9 8 6
2024 8 3 7 10 7 7 7 6 6 6 7 10 8 6 7 6 6 6 7 9 6 7 10 8 6 7 6 7 7 7 6
2025 1 2 1 1 1 2 1 2 1 0 1 1 1 2 2 0 1 2 1 2 2 1 2 2 1 2 1 1 2 2 2
Player 51 43 46 46 52 45 50 43 33 39 41 59 49 43 47 46 42 43 44 51 47 48 58 49 42 43 47 58 49 49 36
Note: xHR tells how many of this pitcher's home runs 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

Metric 2017 +/-   2018 +/-   2019 +/-   2020 +/-   2021 +/-   2022 +/-   2023 +/-   2024 +/-   2025
Fastball Velocity 90.8 -0.2 -- -- -- -- -- -- -- -- 90.4 0.0 90.4 0.5 90.9 2.2 93.1
Offspeed Velocity 83.9 0.7 -- -- -- -- -- -- -- -- 84.2 0.5 84.7 -0.5 84.2 1.8 86.0
Breaking Velocity 75.7 -2.6 -- -- -- -- -- -- -- -- 74.6 -1.2 73.4 2.3 75.7 -1.6 74.1
Exit Velocity 86.2 2.8 -- -- -- -- -- -- -- -- 87.2 1.0 88.2 0.6 88.8 -5.8 83.0
Launch Angle 7.3 3.4 -- -- -- -- -- -- -- -- 10.4 -0.2 10.2 1.1 11.3 2.0 13.3
Barrel % 7.3 -0.4 -- -- -- -- -- -- -- -- 6.2 2.6 8.8 -0.5 8.3 -1.8 6.5
Hard Hit % 33.8 5.3 -- -- -- -- -- -- -- -- 34.5 4.9 39.4 0.6 40.0 -17.4 22.6
LA Sweet-Spot % 33.0 0.3 -- -- -- -- -- -- -- -- 30.5 2.6 33.1 0.0 33.1 5.6 38.7
xBA .263 0.029 -- -- -- -- -- -- -- -- .230 -0.003 .227 -0.003 .224 -0.020 .204
BA .254 0.073 -- -- -- -- -- -- -- -- .210 -0.004 .206 0.032 .238 -0.007 .231
xwOBA .338 0.037 -- -- -- -- -- -- -- -- .306 0.004 .310 -0.022 .288 -0.007 .281
wOBA .333 0.076 -- -- -- -- -- -- -- -- .296 -0.003 .293 0.015 .308 -0.010 .298
xSLG .451 0.064 -- -- -- -- -- -- -- -- .378 0.002 .380 -0.032 .348 -0.006 .342
SLG .460 0.129 -- -- -- -- -- -- -- -- .375 -0.010 .365 0.025 .390 -0.044 .346
K% 21.3 -3.4 -- -- -- -- -- -- -- -- 25.9 2.7 28.6 5.0 33.6 2.6 36.2
BB% 7.8 2.0 -- -- -- -- -- -- -- -- 8.9 0.0 8.9 -0.3 8.6 0.0 8.6
Swing % 43.9 1.8 -- -- -- -- -- -- -- -- 44.2 0.1 44.3 2.5 46.8 -4.7 42.1
Whiff% 21.4 1.5 -- -- -- -- -- -- -- -- 29.2 3.1 32.3 6.0 38.3 -4.0 34.3
In Zone % 50.4 -4.5 -- -- -- -- -- -- -- -- 44.2 -0.2 44.0 -1.8 42.2 1.2 43.4
Out of Zone % 49.6 4.5 -- -- -- -- -- -- -- -- 55.8 0.2 56.0 1.8 57.8 -1.2 56.6
Out of Zone Swing % 23.8 3.1 -- -- -- -- -- -- -- -- 30.7 -3.0 27.7 6.9 34.6 -7.5 27.1
First Pitch Swing % 24.2 2.0 -- -- -- -- -- -- -- -- 23.2 7.3 30.5 0.1 30.6 -6.5 24.1
First Pitch Strike % 60.8 -2.6 -- -- -- -- -- -- -- -- 59.6 1.4 61.0 1.7 62.7 -7.5 55.2
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2017 Shifts 393 .333 212 18 8.5 181 30 16.6
2018 Shifts 120 .409 62 5 8.1 58 16 27.6
2022 Shifts 278 .298 135 34 25.2 143 89 62.2
2023 Shades 265 .297 85 1 1.2 180 58 32.2
2024 Shades 253 .303 113 2 1.8 140 64 45.7
2025 Shades 58 .298 25 0 0.0 33 22 66.7
! 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 %
2017 493 15.1 47.7% 1.2% 257 22.8 0.0% 16.3%
2018 143 15.9 37.1% 2.1% 80 22.3 0.0% 10.0%
2022 320 17.8 10.3% 1.9% 183 23.9 0.0% 8.2%
2023 304 17.1 11.8% 0.3% 175 21.0 0.0% 0.6%
2024 254 17.6 8.7% 2.4% 179 18.7 0.6% 0.6%
2025 52 18.4 0.0% 0.0% 40 19.6 0.0% 2.5%

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Pitch Distribution



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