Mitch Keller
P | Bats/Throws: R/R | 6' 3" 220LBS | Age: 28
Draft: 2014 | Rd: 2, #64, Pittsburgh Pirates | Xavier (IA) HS
W L ERA G GS SV IP SO WHIP
2022 5 12 3.91 31 29 0 159 138 1.40
2023 13 9 4.21 32 32 0 194.1 210 1.25
2024 11 12 4.25 31 31 0 178 166 1.30
6 Seasons 36 50 4.59 133 131 0 701.2 687 1.41
G W-L ERA IP SO WHIP
2022 31 5-12 3.91 159 138 1.40
2023 32 13-9 4.21 194.1 210 1.25
2024 31 11-12 4.25 178 166 1.30
6 Seasons 133 36-50 4.59 701.2 687 1.41
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
2019 23 932 145 8 5.5 3.5 87.2 115.7 10.9 33.8 .236 .346 .392 .284 .383 35.3 28.6 7.0 7.13 3.51
2020 24 385 52 6 11.5 6.9 88.5 114.6 14.3 19.2 .202 .467 .303 .370 .364 42.3 18.4 20.7 2.91 6.08
2021 25 1858 322 22 6.8 4.7 91.5 110.2 11.5 40.1 .288 .452 .379 .359 .404 47.5 19.6 10.4 6.17 5.65
2022 26 2661 477 34 7.1 4.9 87.9 112.7 7.8 33.3 .253 .383 .323 .318 .354 37.3 20.1 8.7 3.91 4.23
2023 27 3119 548 47 8.6 5.7 87.7 115.1 10.3 36.5 .251 .404 .310 .315 .389 35.6 25.5 6.7 4.21 4.18
2024 28 2851 540 39 7.2 5.0 88.8 115.3 12.4 38.0 .249 .409 .331 .320 .373 39.3 21.5 6.5 4.25 4.31
Player 11806 2084 156 7.5 5.1 88.6 115.7 10.6 36.1 .254 .405 .334 .323 .378 39.0 22.4 8.1
MLB 7.0 4.8 88.5 122.4 12.3 33.2 .245 .405 .316 .315 .368 36.5 22.2 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Keller relies on 7 pitches.
Four Seamer
(30.4%) ,
Sinker
(22.0%) ,
Sweeper
(15.5%) ,
Cutter
(12.2%) ,
Curveball
(9.6%) ,
Slider
(9.5%) ,
Changeup
(0.7%) ,


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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
2019 40.7 20.0 35.2 4.1 37.9 32.4 29.7 4.8 29.0 17.9 22.1 2.1 5.5 3.5
2020 42.3 36.5 13.5 7.7 38.5 36.5 25.0 5.8 36.5 30.8 7.7 7.7 11.5 6.9
2021 41.0 24.8 29.8 4.3 29.5 38.8 31.7 4.3 27.0 21.7 32.6 7.5 6.8 4.7
2022 49.9 19.3 25.8 5.0 33.1 40.0 26.8 7.1 36.9 19.5 24.3 4.4 7.1 4.9
2023 44.2 25.5 25.0 5.3 34.7 36.5 28.8 5.1 32.1 22.4 27.7 4.0 8.6 5.7
2024 39.8 26.3 28.3 5.6 35.9 33.7 30.4 4.3 30.9 25.4 26.1 6.1 7.2 5.0
Player 43.6 24.1 27.2 5.1 34.2 36.7 29.2 5.2 32.0 22.3 26.4 5.1 7.5 5.1
MLB 44.4 23.8 24.7 7.1 37.2 37.5 25.2 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

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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 Sinker PIT R 627 93.4 23.0 -0.3 15.0ARM -0.1 8.4 -1.1 15.0ARM 0.2
2024 Cutter PIT R 349 90.4 25.6 -0.4 3.0GLV 0.6 7.6 -0.7 3.0GLV 0.3
2024 Sweeper PIT R 441 83.0 40.1 1.6 17.4GLV 3.8 -0.2 1.8 17.4GLV 3.2
2024 Slider PIT R 272 87.5 34.6 0.9 4.7GLV 0.6 0.9 0.7 4.7GLV -0.4
2024 Curveball PIT R 273 78.3 58.0 3.3 13.4GLV 4.1 -13.0 3.1 13.4GLV 4.0
2024 Changeup PIT R 21 89.8 30.4 1.3 16.0ARM 1.2 3.6 1.3 16.0ARM 1.8
2024 4-Seam Fastball PIT R 865 94.4 16.2 -1.3 9.1ARM 1.5 14.4 -1.4 9.1ARM 1.6
2023 Sinker PIT R 710 93.9 21.9 -0.1 15.6ARM 0.6 9.2 -1.6 15.6ARM 0.6
2023 Curveball PIT R 249 78.0 59.9 4.1 12.5GLV 3.5 -14.3 4.4 12.5GLV 3.6
2023 Changeup PIT R 88 90.7 29.8 2.0 15.4ARM 0.4 3.5 1.9 15.4ARM 1.0
2023 Sweeper PIT R 501 82.8 40.5 1.5 18.5GLV 4.6 -0.4 1.9 18.5GLV 4.4
2023 Cutter PIT R 757 89.7 28.3 -2.1 3.6GLV 0.9 5.5 -2.4 3.6GLV 1.0
2023 4-Seam Fastball PIT R 814 95.2 15.2 -0.8 9.0ARM 1.5 15.0 -0.8 9.0ARM 1.6
! 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 4-Seam Fastball 1.0 9 865 30.3 196 .257 .400 .333 24.0 26.0 19.2 .246 .407 .328 40.0
2024 Sinker 0.0 0 627 22.0 196 .266 .405 .338 12.5 18.9 22.3 .217 .351 .291 44.6
2024 Sweeper 0.5 2 442 15.5 156 .204 .331 .263 25.0 30.8 21.6 .196 .303 .263 25.0
2024 Cutter -1.5 -5 349 12.2 92 .272 .593 .396 19.5 9.8 23.7 .309 .539 .395 37.8
2024 Curveball 0.7 2 273 9.6 46 .233 .442 .311 29.3 17.4 17.0 .292 .430 .337 34.3
2024 Slider -2.4 -7 272 9.5 81 .338 .636 .428 24.8 16.0 18.1 .314 .544 .375 49.2
2024 Changeup -15.7 -3 21 0.7 6 .667 1.333 .833 0.0 0.0 0.0 .477 .942 .601 66.7
2023 4-Seam Fastball 0.6 5 814 26.1 215 .176 .351 .279 30.2 43.3 25.8 .177 .343 .280 41.2
2023 Cutter -0.6 -4 757 24.3 192 .316 .503 .376 23.6 14.6 23.7 .306 .457 .352 30.7
2023 Sinker 1.5 11 710 22.8 199 .258 .346 .309 10.5 18.1 26.1 .236 .341 .285 35.1
2023 Sweeper -0.4 -2 501 16.1 146 .221 .324 .286 27.2 27.4 15.9 .259 .395 .309 30.2
2023 Curveball -1.3 -3 249 8.0 48 .273 .614 .382 23.5 22.9 17.2 .315 .653 .424 52.9
2023 Changeup -2.4 -2 88 2.8 25 .360 .600 .410 21.1 8.0 11.8 .368 .552 .396 43.5
! 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 Changeup 21 89.8 78 17.1 2:00 2:45 -45
2024 Curveball 272 78.3 93 21.3 7:15 7:30 -15
2024 Cutter 349 90.4 44 7.7 12:15 11:00 75
2024 4-Seam Fastball 865 94.4 84 16.7 1:15 1:15 0
2024 Sinker 624 93.4 77 17.5 1:15 2:15 -60
2024 Slider 272 87.5 30 5.6 10:15 8:45 90
2024 Sweeper 441 82.9 66 18.5 8:15 8:45 -30
2023 Changeup 86 90.7 95 16.5 2:00 2:45 -45
2023 Curveball 247 78.0 93 21.8 7:15 7:15 0
2023 Cutter 751 89.7 38 6.5 11:45 10:30 75
2023 4-Seam Fastball 813 95.2 87 17.2 1:15 1:00 15
2023 Sinker 696 93.8 82 18.3 1:15 2:00 -45
2023 Sweeper 487 82.7 64 19.6 8:00 8:45 -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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Swing/Take

Runs
Year Team PA Pitches Heart Shadow Chase Waste All
2019 185 753 -1 -3 -3 -2 -9
2020 87 385 4 6 -4 -4 2
2021 469 1,858 -6 11 -15 -12 -22
2022 686 2,661 13 8 -14 -10 -3
2023 825 3,119 4 26 -15 -11 4
2024 773 2,849 0 21 -12 -12 -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 %
2019 932 51.5 73.5 82.5 29.9 47.7 41.4 63.4 51.7 24.9 9.4 85.9
2020 385 45.2 66.7 82.8 19.0 67.5 41.6 46.0 40.5 21.2 7.8 73.3
2021 1,858 50.2 66.6 86.3 25.5 58.5 41.4 56.0 46.1 20.7 7.3 80.0
2022 2,661 50.1 65.2 85.3 26.0 61.0 43.1 56.8 45.6 21.6 7.0 70.1
2023 3,119 53.8 65.5 81.6 27.1 62.1 42.4 63.8 47.8 23.2 8.8 71.6
2024 2,851 52.9 64.8 85.4 28.3 60.0 45.5 61.4 47.6 21.5 8.1 76.3
Player 11,806 51.7 66.0 84.2 26.7 59.9 43.1 59.9 47.1 22.1 8.0 74.8
MLB 48.7 67.0 82.0 28.5 57.8 42.6 61.0 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
2019 78 57 86 96 64 87 79 83 61 80 67 47 59 81 93 83 41
2020 11 83 19 3 7 46 10 47 20 18 1 15 2 60 66 60 28
2021 8 4 22 45 3 36 63 3 2 22 22 13 22 55 80 70 32
2022 33 29 46 64 20 13 52 63 56 29 38 18 13 71 88 63 48
2023 49 39 48 59 56 3 36 77 74 65 76 29 26 60 83 67 62
2024 34 34 33 35 45 11 61 50 44 37 73 16 47 50 87 68 52
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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 %
2019 22.3 6 2.5 4 5 3 1 16.7
2020 24.1 4 3.9 0 0 5 1 25.0
2021 24.0 10 11.8 -2 6 11 3 30.0
2022 24.6 14 15.6 -2 8 16 3 21.4
2023 23.0 25 26.1 -1 6 19 11 44.0
2024 23.4 23 23.1 0 7 19 8 34.8
Player 23.5 82 83.0 -1 32 73 27 32.9
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
2019 6 3 1 6 4 1 4 2 3 1 1 3 3 2 2 1 2 1 3 3 2 2 5 4 2 2 2 3 3 2 2
2020 4 6 4 3 3 5 5 3 2 2 3 3 4 4 5 2 5 4 5 3 5 4 5 3 4 2 3 5 6 5 3
2021 10 13 10 14 14 13 14 12 9 8 9 17 9 8 13 14 9 10 11 14 11 11 16 14 9 10 16 14 11 10 10
2022 14 13 10 20 15 15 17 14 13 10 13 20 18 16 17 20 17 17 15 17 16 12 23 19 12 12 15 19 16 15 13
2023 25 25 20 26 28 25 26 26 22 24 24 24 29 26 27 30 29 25 29 30 26 22 35 30 25 22 27 28 30 25 19
2024 23 23 15 28 19 23 24 27 19 20 22 26 23 24 26 24 25 23 25 27 24 18 29 25 22 23 20 24 25 23 17
Player 82 83 60 97 83 82 90 84 68 65 72 93 86 80 90 91 87 80 88 94 84 69 113 95 74 71 83 93 91 80 64
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 2019 2020 +/-   2021 +/-   2022 +/-   2023 +/-   2024 +/-  
Fastball Velocity 93.4 91.9 -1.5 ↓ 91.5 -0.4 ↓ 95.1 3.6 ↑ 92.9 -2.2 ↓ 93.3 0.4 ↑
Offspeed Velocity 91.0 88.8 -2.2 ↓ 89.8 1.0 ↑ 91.2 1.4 ↑ 90.7 -0.5 ↓ 89.8 -0.9 ↓
Breaking Velocity 81.1 78.1 -3.0 ↓ 78.5 0.4 ↑ 82.0 3.5 ↑ 81.2 -0.8 ↓ 82.9 1.7 ↑
Exit Velocity 87.2 88.5 1.3 ↑ 91.5 3.0 ↑ 87.9 -3.6 ↓ 87.7 -0.2 ↓ 88.8 1.1 ↑
Launch Angle 10.9 14.3 3.4 ↑ 11.5 -2.8 ↓ 7.8 -3.7 ↓ 10.3 2.5 ↑ 12.4 2.1 ↑
Barrel % 5.5 11.5 6.0 ↑ 6.8 -4.7 ↓ 7.1 0.3 ↑ 8.6 1.5 ↑ 7.2 -1.4 ↓
Hard Hit % 35.3 42.3 7.0 ↑ 47.5 5.2 ↑ 37.3 -10.2 ↓ 35.6 -1.7 ↓ 39.3 3.7 ↑
LA Sweet-Spot % 33.8 19.2 -14.6 ↓ 40.1 20.9 ↑ 33.3 -6.8 ↓ 36.5 3.2 ↑ 38.0 1.5 ↑
xBA .236 .202 -0.034 ↓ .288 0.086 ↑ .253 -0.035 ↓ .251 -0.002 ↓ .249 -0.002 ↓
BA .348 .132 -0.216 ↓ .322 0.190 ↑ .266 -0.056 ↓ .249 -0.017 ↓ .261 0.012 ↑
xwOBA .284 .370 0.086 ↑ .359 -0.011 ↓ .318 -0.041 ↓ .315 -0.003 ↓ .320 0.005 ↑
wOBA .392 .303 -0.089 ↓ .379 0.076 ↑ .323 -0.056 ↓ .310 -0.013 ↓ .331 0.021 ↑
xSLG .346 .467 0.121 ↑ .452 -0.015 ↓ .383 -0.069 ↓ .404 0.021 ↑ .409 0.005 ↑
SLG .546 .338 -0.208 ↓ .477 0.139 ↑ .388 -0.089 ↓ .404 0.016 ↑ .446 0.042 ↑
K% 28.6 18.4 -10.2 ↓ 19.6 1.2 ↑ 20.1 0.5 ↑ 25.5 5.4 ↑ 21.5 -4.0 ↓
BB% 7.0 20.7 13.7 ↑ 10.4 -10.3 ↓ 8.7 -1.7 ↓ 6.7 -2.0 ↓ 6.5 -0.2 ↓
Swing % 51.7 40.5 -11.2 ↓ 46.1 5.6 ↑ 45.6 -0.5 ↓ 47.8 2.2 ↑ 47.6 -0.2 ↓
Whiff% 24.9 21.2 -3.7 ↓ 20.7 -0.5 ↓ 21.6 0.9 ↑ 23.2 1.6 ↑ 21.5 -1.7 ↓
In Zone % 51.5 45.2 -6.3 ↓ 50.2 5.0 ↑ 50.1 -0.1 ↓ 53.8 3.7 ↑ 52.9 -0.9 ↓
Out of Zone % 48.5 54.8 6.3 ↑ 49.8 -5.0 ↓ 49.9 0.1 ↑ 46.2 -3.7 ↓ 47.1 0.9 ↑
Out of Zone Swing % 29.9 19.0 -10.9 ↓ 25.5 6.5 ↑ 26.0 0.5 ↑ 27.1 1.1 ↑ 28.3 1.2 ↑
First Pitch Swing % 31.7 18.4 -13.3 ↓ 29.6 11.2 ↑ 25.6 -4.0 ↓ 31.8 6.2 ↑ 30.0 -1.8 ↓
First Pitch Strike % 63.4 46.0 -17.4 ↓ 56.0 10.0 ↑ 56.8 0.8 ↑ 63.8 7.0 ↑ 61.4 -2.4 ↓
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2019 Shifts 205 .378 113 19 16.8 92 25 27.2
2020 Shifts 87 .303 36 21 58.3 51 26 51.0
2021 Shifts 469 .379 239 15 6.3 230 146 63.5
2022 Shifts 686 .323 357 54 15.1 329 148 45.0
2023 Shades 825 .310 395 29 7.3 430 225 52.3
2024 Shades 773 .331 373 22 5.9 400 31 7.8
! 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 %
2019 181 15.8 38.1% 1.7% 122 22.8 0.0% 5.7%
2020 139 17.2 14.4% 0.7% 48 23.3 0.0% 14.6%
2021 481 16.9 28.1% 0.6% 342 22.4 0.0% 7.9%
2022 762 15.0 50.3% 1.4% 474 21.5 0.0% 4.2%
2023 878 12.1 91.5% 0.0% 493 17.7 2.4% 0.8%
2024 756 14.3 63.6% 0.4% 483 19.2 1.2% 0.2%

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Pitch Distribution

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