Mark Leiter Jr.
P | Bats/Throws: R/R | 6' 0" 210LBS | Age: 33
Draft: 2013 | Rd: 22, #661, Philadelphia Phillies | New Jersey Inst of Tech
W L ERA G GS SV IP SO WHIP
2022 2 7 3.99 35 4 3 67.2 73 1.14
2023 1 3 3.50 69 0 4 64.1 77 1.12
2024 1 1 1.00 18 0 0 18 20 1.17
5 Seasons 7 18 4.33 169 15 7 264 276 1.28
G W-L ERA IP SO WHIP
2022 35 2-7 3.99 67.2 73 1.14
2023 69 1-3 3.50 64.1 77 1.12
2024 18 1-1 1.00 18 20 1.17
5 Seasons 169 7-18 4.33 264 276 1.28
MLB Percentile Rankings
Pitch Distribution
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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 .367 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 33 281 49 5 10.2 6.6 87.5 109.0 12.7 24.5 .232 .352 .259 .291 .352 38.8 26.3 9.2 1.00 3.27
Player 4401 746 56 7.5 4.9 87.3 116.8 9.4 31.9 .248 .416 .317 .324 .387 36.1 24.1 8.6
MLB 6.9 4.7 88.5 122.4 12.2 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

Leiter relies on 5 pitches.
Sinker
(33.5%) ,
Split Finger
(32.4%) ,
Sweeper
(13.2%) ,
Cutter
(13.2%) ,
Curveball
(7.8%) ,


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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
2017 49.5 20.5 26.0 4.0 38.8 38.1 23.1 7.0 34.8 19.8 26.0 4.0 7.3 5.1
2018 47.1 24.1 23.0 5.7 48.3 26.4 24.1 3.4 28.7 21.8 28.7 6.9 6.9 4.9
2022 49.2 22.0 21.5 7.3 42.4 35.6 22.0 6.2 35.6 19.8 25.4 6.8 6.2 3.9
2023 46.3 22.5 26.9 4.4 43.8 41.9 14.4 6.9 37.5 18.8 23.1 5.0 8.8 5.2
2024 44.9 22.4 22.4 10.2 42.9 32.7 24.5 4.1 32.7 18.4 28.6 6.1 10.2 6.6
Player 48.1 21.8 24.5 5.5 42.1 36.6 21.2 6.2 34.7 19.7 25.7 5.4 7.5 4.9
MLB 44.6 23.5 24.8 7.0 37.0 37.5 25.3 3.9 32.8 24.7 24.4 5.8 6.9 4.7
! Note: All figures in this table cover the period 2015-present.

Pitch Movement

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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 CHC R 22 74.0 66.9 4.0 6 9.2 -2.0 -18
2024 Split-Finger CHC R 91 84.3 34.9 -0.1 0 5.0 -4.8 -49
2024 Sweeper CHC R 37 79.9 43.8 2.0 5 12.5 -2.1 -15
2024 Sinker CHC R 94 91.2 20.8 -3.2 -13 14.3 -0.8 -5
2024 Cutter CHC R 36 88.5 28.1 -0.7 -3 2.0 -1.0 -33
2023 Split-Finger CHC R 355 84.7 33.1 -0.6 -2 6.2 -5.3 -46
2023 Cutter CHC R 214 88.7 27.5 -0.2 -1 2.2 -0.5 -19
2023 Sinker CHC R 296 91.3 21.0 -3.3 -14 14.0 -1.0 -7
2023 4-Seam Fastball CHC R 86 91.2 16.4 0.6 4 6.6 0.1 1
2023 Curveball CHC R 95 73.4 68.4 5.1 8 8.6 -3.4 -29
2022 Curveball CHC R 181 73.2 68.6 3.4 5 7.6 -4.3 -36
2022 4-Seam Fastball CHC R 245 91.1 16.5 0.0 0 5.4 -1.5 -22
2022 Cutter CHC R 105 87.4 29.7 -1.8 -6 3.2 0.6 21
2022 Split-Finger CHC R 246 84.2 34.1 0.9 3 6.4 -5.3 -45
2022 Slider CHC R 56 79.4 43.1 0.3 1 13.5 3.2 31
2022 Sinker CHC R 253 90.9 20.6 -3.3 -14 12.7 -2.0 -14
2018 Split-Finger TOR R 128 84.6 32.3 -1.1 -3 6.1 -4.8 -44
2018 Cutter TOR R 51 87.5 29.1 -1.4 -5 4.1 1.8 77
2018 Curveball TOR R 46 73.1 70.2 6.5 10 7.8 -3.4 -30
2018 Sinker TOR R 129 91.2 19.4 -3.7 -16 13.0 -1.4 -10
2018 4-Seam Fastball TOR R 113 91.4 15.3 1.5 9 5.3 -1.7 -25
2017 Split-Finger PHI R 425 83.9 31.7 -1.1 -3 5.5 -5.2 -48
2017 Changeup PHI R 3 84.9 31.4 2.2 8 1.5 -12.1 -89
2017 Slider PHI R 64 82.8 39.4 1.9 5 4.3 -0.9 -17
2017 Curveball PHI R 130 72.3 67.1 4.4 7 8.4 -3.2 -28
2017 Cutter PHI R 15 88.4 25.1 0.4 2 3.7 2.0 122
2017 4-Seam Fastball PHI R 549 91.0 15.0 0.7 4 4.7 -2.7 -37
2017 Sinker PHI R 321 90.7 18.6 -3.5 -16 12.9 -1.7 -12
! 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 Sinker 4.4 4 94 33.5 30 .231 .231 .273 10.6 6.7 13.3 .307 .449 .375 33.3
2024 Split-Finger 4.2 4 91 32.4 31 .034 .034 .103 61.7 54.8 34.7 .083 .096 .118 25.0
2024 Sweeper -4.8 -2 37 13.2 6 .667 1.167 .783 25.0 16.7 10.0 .451 .757 .518 20.0
2024 Cutter -1.6 -1 37 13.2 8 .286 .429 .469 0.0 0.0 0.0 .328 .601 .430 85.7
2024 Curveball -1.2 0 22 7.8 1 1.000 3.000 1.600 60.0 0.0 0.0 .629 1.056 .686 100.0
2023 Split-Finger 0.3 1 359 34.0 128 .134 .223 .217 48.2 50.8 30.1 .127 .231 .215 31.3
2023 Sinker -0.3 -1 297 28.1 73 .283 .517 .396 16.0 5.5 17.4 .301 .502 .394 37.9
2023 Cutter 2.7 6 218 20.6 40 .200 .286 .254 20.3 10.0 17.4 .325 .421 .353 56.3
2023 Curveball 0.5 1 96 9.1 8 .250 .250 .225 35.5 0.0 0.0 .360 .437 .345 25.0
2023 4-Seam Fastball -3.6 -3 86 8.1 20 .389 .944 .568 21.2 20.0 14.3 .358 .795 .503 42.9
2022 Sinker 1.8 4 253 23.3 61 .196 .333 .281 14.8 11.5 20.6 .279 .416 .346 23.9
2022 Split-Finger 3.4 8 246 22.7 100 .079 .124 .154 53.6 53.0 34.9 .095 .119 .160 13.9
2022 4-Seam Fastball -2.2 -5 245 22.6 55 .348 .652 .485 18.4 9.1 9.8 .368 .692 .491 61.0
2022 Curveball -1.2 -2 181 16.7 28 .296 .407 .386 23.2 0.0 0.0 .260 .337 .272 25.9
2022 Cutter -2.6 -3 105 9.7 24 .348 .913 .525 26.2 29.2 25.0 .305 .682 .430 62.5
2022 Slider -2.6 -1 56 5.2 12 .250 .250 .300 18.2 8.3 4.3 .287 .440 .316 27.3
2018 Sinker 2.1 3 129 27.6 34 .250 .393 .310 18.6 5.9 20.0 .284 .467 .360 32.1
2018 Split-Finger -2.5 -3 128 27.4 44 .231 .359 .333 27.8 34.1 19.2 .169 .222 .233 37.5
2018 4-Seam Fastball -2.9 -3 113 24.1 26 .333 .708 .531 21.4 15.4 17.4 .360 .708 .470 50.0
2018 Cutter -7.6 -4 51 10.9 8 .750 1.125 .813 5.3 0.0 0.0 .465 .879 .573 50.0
2018 Curveball -11.5 -5 46 9.8 8 .625 1.500 .881 40.0 12.5 14.3 .551 1.187 .728 28.6
2017 4-Seam Fastball 0.2 1 549 36.4 121 .242 .485 .363 10.3 7.4 9.4 .304 .592 .426 41.9
2017 Split-Finger -0.9 -4 425 28.1 152 .214 .407 .300 32.2 38.2 25.2 .204 .341 .252 28.7
2017 Sinker -0.5 -1 321 21.3 77 .333 .565 .440 11.0 3.9 8.3 .357 .572 .425 31.8
2017 Curveball -1.3 -2 130 8.6 24 .348 .565 .404 37.3 29.2 35.0 .260 .358 .283 25.0
2017 Slider 1.4 1 64 4.2 13 .154 .154 .150 30.4 38.5 71.4 .136 .170 .130 25.0
2017 Cutter -10.3 -2 15 1.0 3 .500 .500 .533 25.0 0.0 0.0 .319 .426 .437 50.0
2017 Changeup 22.6 1 3 0.2 2 .000 .000 .000 100.0 100.0 66.7 -- -- .000 --
! 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 Curveball 22 74.0 93 22.0 6:45 7:00 -15
2024 Cutter 36 88.5 52 6.1 12:15 11:15 60
2024 Split-Finger 72 84.3 85 7.4 1:45 2:15 -30
2024 Sinker 94 91.2 90 18.7 1:00 1:45 -45
2024 Sweeper 37 79.9 51 13.7 7:45 8:30 -45
2023 Curveball 95 73.4 97 22.4 6:45 6:45 0
2023 Cutter 209 88.8 52 6.6 12:15 11:15 60
2023 4-Seam Fastball 84 91.2 95 17.2 1:00 12:45 15
2023 Split-Finger 318 84.7 89 8.3 1:45 2:00 -15
2023 Sinker 289 91.3 89 18.2 1:00 1:45 -45
2022 Curveball 181 73.2 94 21.8 6:45 6:45 0
2022 Cutter 98 87.6 51 6.5 12:00 10:45 75
2022 4-Seam Fastball 244 91.1 96 16.7 12:45 12:45 0
2022 Split-Finger 210 84.2 90 8.8 1:45 2:15 -30
2022 Sinker 250 90.9 91 17.6 12:45 1:45 -60
2022 Slider 56 79.4 49 14.7 8:00 8:45 -45
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! 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
2017 392 1,508 4 6 -9 -7 -6
2018 120 467 -12 3 -2 -2 -13
2022 280 1,086 5 10 -7 -7 1
2023 269 1,056 0 15 -3 -8 4
2024 76 281 4 2 0 -1 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 %
2017 1,510 50.4 63.7 84.3 23.8 59.0 41.4 60.8 43.9 21.3 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 29.0 6.8 68.9
2023 1,056 44.0 65.4 78.3 27.7 44.5 39.5 61.0 44.3 32.1 7.0 63.5
2024 281 40.9 65.2 82.7 33.1 45.5 40.2 61.8 46.3 33.1 4.3 83.3
Player 4,401 46.3 64.0 82.4 27.5 51.8 40.1 60.4 44.4 26.7 6.8 72.5
MLB 48.6 67.0 82.0 28.4 57.9 42.6 60.9 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
2017 23 27 24 22 28 34 24 76 45 46 59 28 13 21 4 14 87
2018 26 3 80
2022 47 59 51 44 36 72 70 78 76 70 34 72 64 12 2 22 78
2023 55 70 65 59 46 62 34 67 47 84 42 88 35 13 3 23 71
2024 71 65 74 76 69 46 18 75 49 72 37 92 86 12 2 65
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Expected Home Runs

Year Team Avg HR Trot Actual HR xHR HR-xHR Doubters Mostly Gone No Doubters No Doubter %
2017 22.5 18 14.8 3 5 11 7 38.9
2018 22.6 7 6.9 0 3 3 4 57.1
2022 25.0 10 9.8 0 8 8 3 30.0
2023 24.8 7 7.7 -1 1 7 3 42.9
2024 23.2 1 0.9 0 2 1 0 0.0
Player 23.5 43 40.1 3 19 30 17 39.5

Expected Home Runs by Park

Year HR
2017 18 16 13 16 16 14 16 16 13 12 12 19 15 13 16 17 12 14 15 14 15 14 18 16 14 14 14 19 16 16 9
2018 7 8 6 7 7 7 7 6 6 7 7 9 7 7 7 7 7 6 6 7 7 7 7 7 6 7 7 8 7 7 6
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 9 9 8 6 9 8 8 10 10 8 8 7 9 9 10 6
2024 1 0 2 1 1 1 1 0 1 0 1 2 0 0 1 1 0 1 1 1 0 2 1 2 0 1 1 1 2 1 1
Player 43 39 40 37 46 38 44 35 28 35 35 51 41 36 41 45 36 37 37 41 40 42 48 44 36 38 42 52 43 45 30
! Note: This tells how many of this player's home runs would have been out of other stadiums. This accounts for different wall heights, distances and environmental effects. For these purposes, the 2020 Blue Jays home field was still Rogers Centre, not Sahlen Field.
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Year to Year Changes

Metric 2017 2018 +/-   2019 +/-   2020 +/-   2021 +/-   2022 +/-   2023 +/-   2024 +/-  
Fastball Velocity 90.8 -- -0.2 ↓ -- -- -- -- -- -- 90.4 -- 90.4 0.0 90.4 0.0
Offspeed Velocity 83.9 -- 0.7 ↑ -- -- -- -- -- -- 84.2 -- 84.7 0.5 ↑ 84.3 -0.4 ↓
Breaking Velocity 75.7 -- -2.6 ↓ -- -- -- -- -- -- 74.6 -- 73.4 -1.2 ↓ 77.7 4.3 ↑
Exit Velocity 86.2 -- 2.8 ↑ -- -- -- -- -- -- 87.2 -- 88.2 1.0 ↑ 87.5 -0.7 ↓
Launch Angle 7.3 -- 3.4 ↑ -- -- -- -- -- -- 10.4 -- 10.2 -0.2 ↓ 12.7 2.5 ↑
Barrel % 7.3 -- -0.4 ↓ -- -- -- -- -- -- 6.2 -- 8.8 2.6 ↑ 10.2 1.4 ↑
Hard Hit % 33.8 -- 5.3 ↑ -- -- -- -- -- -- 34.5 -- 39.4 4.9 ↑ 38.8 -0.6 ↓
LA Sweet-Spot % 33.0 -- 0.3 ↑ -- -- -- -- -- -- 30.5 -- 33.1 2.6 ↑ 24.5 -8.6 ↓
xBA .263 -- 0.029 ↑ -- -- -- -- -- -- .230 -- .227 -0.003 ↓ .232 0.005 ↑
BA .254 -- 0.073 ↑ -- -- -- -- -- -- .210 -- .206 -0.004 ↓ .203 -0.003 ↓
xwOBA .338 -- 0.037 ↑ -- -- -- -- -- -- .306 -- .310 0.004 ↑ .291 -0.019 ↓
wOBA .333 -- 0.076 ↑ -- -- -- -- -- -- .296 -- .293 -0.003 ↓ .259 -0.034 ↓
xSLG .451 -- 0.064 ↑ -- -- -- -- -- -- .378 -- .380 0.002 ↑ .352 -0.028 ↓
SLG .460 -- 0.129 ↑ -- -- -- -- -- -- .375 -- .365 -0.010 ↓ .290 -0.075 ↓
K% 21.3 -- -3.4 ↓ -- -- -- -- -- -- 25.9 -- 28.6 2.7 ↑ 26.3 -2.3 ↓
BB% 7.8 -- 2.0 ↑ -- -- -- -- -- -- 8.9 -- 8.9 0.0 9.2 0.3 ↑
Swing % 43.9 -- 1.8 ↑ -- -- -- -- -- -- 44.2 -- 44.3 0.1 ↑ 46.3 2.0 ↑
Whiff% 21.3 -- 1.6 ↑ -- -- -- -- -- -- 29.0 -- 32.1 3.1 ↑ 33.1 1.0 ↑
In Zone % 50.4 -- -4.5 ↓ -- -- -- -- -- -- 44.2 -- 44.0 -0.2 ↓ 40.9 -3.1 ↓
Out of Zone % 49.6 -- 4.5 ↑ -- -- -- -- -- -- 55.8 -- 56.0 0.2 ↑ 59.1 3.1 ↑
Out of Zone Swing % 23.8 -- 3.1 ↑ -- -- -- -- -- -- 30.7 -- 27.7 -3.0 ↓ 33.1 5.4 ↑
First Pitch Swing % 24.2 -- 2.0 ↑ -- -- -- -- -- -- 23.2 -- 30.5 7.3 ↑ 28.9 -1.6 ↓
First Pitch Strike % 60.8 -- -2.6 ↓ -- -- -- -- -- -- 59.6 -- 61.0 1.4 ↑ 61.8 0.8 ↑
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2017 Shifts 393 .333 212 18 8.5 181 36 19.9
2018 Shifts 120 .409 62 5 8.1 58 22 37.9
2022 Shifts 278 .298 135 40 29.6 143 93 65.0
2023 Shades 265 .297 85 1 1.2 180 58 32.2
2024 Shades 76 .259 27 1 3.7 49 10 20.4
! 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 55 18.1 1.8% 1.8% 51 19.5 0.0% 0.0%
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Pitch Distribution

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