P | Bats/Throws: L/L | 6' 2" 208 lbs | Age: 34
Draft: 2012 | Rd. 9, No. 283, Kansas City Royals | San Jacinto College
W L ERA G GS SV IP SO WHIP
2017 0 1 3.82 55 0 0 37.2 33 1.38
2018 1 5 4.93 56 0 0 38.1 37 1.57
2019 1 1 4.34 48 0 0 29 28 1.72
4 Seasons 2 7 4.66 166 0 0 110 100 1.57
G W-L ERA IP SO WHIP
2017 55 0-1 3.82 37.2 33 1.38
2018 56 1-5 4.93 38.1 37 1.57
2019 48 1-1 4.34 29 28 1.72
4 Seasons 166 2-7 4.66 110 100 1.57
Player Apps
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Pitch Usage
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
2016 25 101 21 0 0.0 0.0 88.1 105.6 16.4 38.1 .375 .480 .463 .395 .405 33.3 8.0 8.0 10.80 7.09
2017 26 656 110 6 5.5 3.8 85.7 108.4 14.3 29.1 .231 .382 .324 .308 .345 25.5 20.6 9.4 3.82 4.07
2018 27 701 120 6 5.0 3.5 88.4 113.1 18.4 39.2 .258 .402 .350 .317 .370 30.8 21.4 9.2 4.93 4.27
2019 28 522 92 9 9.8 6.7 90.8 110.5 16.2 34.8 .265 .470 .362 .342 .393 45.7 20.7 11.1 4.34 5.26
Player 1980 343 21 6.1 4.3 88.2 113.1 16.4 34.7 .258 .418 .351 .325 .370 33.3 20.3 9.7
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

Stumpf relies on 3 pitches.
Four Seamer
(52.1%) ,
Slider
(37.9%) ,
Changeup
(10.0%) ,


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+ If Available Pitches Click to Video.


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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 %
2016 38.1 61.9 19.0 28.6 14.3 42.9 42.9 14.3 19.0 14.3 4.8 23.8 28.6 9.5
2017 42.7 57.3 22.7 21.8 12.7 32.7 37.3 30.0 19.1 19.1 4.5 13.6 18.2 25.5
2018 37.5 62.5 24.2 30.0 8.3 37.5 35.8 25.8 18.3 11.7 6.7 19.2 24.2 19.2
2019 37.0 63.0 27.2 29.3 6.5 39.1 31.5 29.3 20.7 10.9 5.4 18.5 20.7 23.9
Player 39.1 60.9 24.2 27.1 9.6 36.7 35.6 27.4 19.2 14.0 5.5 17.5 21.6 21.9
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
2016 0.0 23.8 23.8 42.9 4.8 0.0 0.0
2017 3.6 35.5 28.2 20.9 2.7 5.5 3.8
2018 0.0 24.2 30.8 29.2 7.5 5.0 3.5
2019 2.2 28.3 27.2 25.0 6.5 9.8 6.7
Player 1.7 28.9 28.6 26.2 5.5 6.1 4.3
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

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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
2019 Slider DET L 198 81.4 41.8 -0.3 3.7GLV -3.2 1.0 0.6 3.7GLV -1.7
2019 4-Seam Fastball DET L 272 92.2 15.8 0.9 9.0ARM 1.8 17.3 1.6 9.0ARM 1.3
2019 Changeup DET L 52 85.9 27.4 -2.6 14.1ARM 0.4 10.2 -2.3 14.1ARM -0.2
2018 Changeup DET L 32 86.0 31.4 1.0 15.3ARM 1.7 6.2 1.4 15.3ARM 1.2
2018 Sinker DET L 38 93.2 19.8 -2.3 14.7ARM -0.1 12.8 -3.3 14.7ARM 0.4
2018 4-Seam Fastball DET L 339 93.3 16.2 -0.1 10.1ARM 2.5 16.2 0.6 10.1ARM 2.2
2018 Slider DET L 291 84.7 35.0 -2.5 1.6GLV -3.0 4.4 -2.8 1.6GLV -3.9
! 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 %
2019 4-Seam Fastball -0.7 -2 272 52.1 63 .269 .481 .395 21.8 20.6 20.0 .259 .492 .375 47.5
2019 Slider -1.8 -4 198 37.9 55 .327 .510 .375 29.7 23.6 22.4 .270 .456 .311 48.7
2019 Changeup -2.5 -1 52 10.0 16 .333 .533 .391 18.2 12.5 18.2 .273 .438 .324 30.8
2018 4-Seam Fastball -1.6 -5 339 48.4 63 .286 .536 .387 25.8 25.4 16.8 .273 .466 .354 32.5
2018 Slider 0.2 1 291 41.6 85 .266 .418 .332 27.6 20.0 17.2 .234 .364 .278 29.7
2018 Sinker -5.3 -2 38 5.4 13 .444 .667 .546 14.3 15.4 20.0 .377 .447 .465 57.1
2018 Changeup 1.0 0 32 4.6 10 .333 .444 .305 33.3 10.0 9.1 .271 .327 .249 11.1
! Note: Years are in reverse order.
! Note: To better align with other values, positive numbers (red) are good, and negative numbers (blue) are poor.

Statcast Pitching Run Value

Runs
Year Team PA Pitches Heart Shadow Chase Waste All
2016 25 101 0 -1 0 0 -2
2017 154 639 5 1 -5 -2 0
2018 171 700 2 -2 -4 -2 -7
2019 134 522 -1 4 -7 -2 -7
Player 484 1,962 6 1 -16 6 -16
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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 %
2016 101 49.5 66.0 72.7 25.5 61.5 49.5 64.0 45.5 30.4 8.9 55.6
2017 656 48.2 65.3 85.6 26.0 70.9 44.8 62.9 44.7 18.8 5.9 78.9
2018 701 47.1 67.9 79.9 27.8 59.2 46.7 59.9 46.6 26.6 7.1 70.0
2019 522 48.1 67.7 82.4 23.2 55.6 42.5 59.7 44.6 24.9 6.1 81.3
Player 1,980 47.9 66.9 82.0 25.9 62.3 45.1 61.0 45.4 23.8 6.6 74.4
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
2017 62 93 18
2018 56 85 13
2019 33 77 18
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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 %
2016 22.76 1 0.7 0 0 1 0 0.0
2017 23.53 5 4.7 0 1 5 1 20.0
2018 23.21 5 4.6 0 3 2 3 60.0
2019 22.29 5 6.0 -1 2 4 3 60.0
Player 22.96 16 15.9 0 6 12 7 43.8
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
2016 1 1 1 1 1 1 1 0 1 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 1 1 0 1 1
2017 5 5 5 4 5 5 6 5 4 4 2 5 6 6 4 6 4 4 6 4 5 4 6 5 3 4 4 5 6 6 3
2018 5 6 4 4 5 5 5 4 4 4 5 5 5 4 4 6 4 4 4 5 6 4 5 4 4 4 4 5 5 5 4
2019 5 7 5 5 5 7 7 7 5 4 6 8 5 6 7 5 6 6 7 7 5 7 7 5 6 5 5 6 6 7 6
Player 16 19 15 14 16 18 19 16 14 12 14 19 16 16 16 18 14 14 18 17 16 15 19 15 13 14 14 17 17 19 14
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

2019 +/-   2018 +/-   2017 +/-   2016
Results
BA .302 +.016 ↑ .286 +.020 ↑ .266 -.143 ↓ .409
xBA .265 +.007 ↑ .258 +.027 ↑ .231 -.144 ↓ .375
OBP .373 +.024 ↑ .349 +.011 ↑ .338 -.120 ↓ .458
xOBP .343 +.016 ↑ .327 +.012 ↑ .315 -.112 ↓ .427
SLG .500 +.026 ↑ .474 +.050 ↑ .424 -.212 ↓ .636
xSLG .470 +.068 ↑ .402 +.020 ↑ .382 -.098 ↓ .480
ISO .198 +.010 ↑ .188 +.030 ↑ .158 -.069 ↓ .227
xISO .204 +.059 ↑ .145 -.005 ↓ .150 +.046 ↑ .104
BABIP .349 +.007 ↑ .342 +.037 ↑ .305 -.116 ↓ .421
wOBA .362 +.012 ↑ .350 +.026 ↑ .324 -.139 ↓ .463
xwOBA .342 +.025 ↑ .317 +.009 ↑ .308 -.087 ↓ .395
wOBACON .423 +.007 ↑ .416 +.049 ↑ .367 -.120 ↓ .487
xwOBACON .393 +.023 ↑ .370 +.025 ↑ .345 -.060 ↓ .405
BACON .385 +.015 ↑ .370 +.034 ↑ .336 -.114 ↓ .450
xBACON .340 +.001 ↑ .339 +.036 ↑ .303 -.110 ↓ .413
Statcast Hit Metrics
Hard Hit % 45.7 +14.9 ↑ 30.8 +5.3 ↑ 25.5 -7.8 ↓ 33.3
Avg Exit Velocity 90.8 +2.4 ↑ 88.4 +2.7 ↑ 85.7 -2.4 ↓ 88.1
Launch Angle Sweet-Spot % 34.8 -4.4 ↓ 39.2 +10.1 ↑ 29.1 -9.0 ↓ 38.1
Barrel % 9.8 +4.8 ↑ 5.0 -0.5 ↓ 5.5 +5.5 ↑ 0.0
Avg Launch Angle 16.2 -2.2 ↓ 18.4 +4.1 ↑ 14.3 -2.1 ↓ 16.4
Statcast Bat Tracking
Bat Speed 0.0 -- -- -- -- -- --
Attack Angle 0° -- -- -- -- -- --
Ideal Attack Angle % 0.0 -- -- -- -- -- --
Attack Direction 0° -- -- -- -- -- --
Swing Path - Tilt 0° -- -- -- -- -- --
Swing Length 0.0 -- -- -- -- -- --
Statcast Pitch Metrics
Fastball Velocity 92.2 -1.1 ↓ 93.3 -0.4 ↓ 93.7 +1.2 ↑ 92.5
Breaking Velocity 81.4 -3.3 ↓ 84.7 +0.1 ↑ 84.6 +1.7 ↑ 82.9
Offspeed Velocity 85.9 -0.1 ↓ 86.0 -0.6 ↓ 86.6 +0.5 ↑ 86.1
Batted Ball Results
Barrels 9 +3 ↑ 6 0 6 +6 ↑ 0
Popup % 6.5 -1.8 ↓ 8.3 -4.4 ↓ 12.7 -1.6 ↓ 14.3
Flyball % 27.2 +3.0 ↑ 24.2 +1.5 ↑ 22.7 +3.7 ↑ 19.0
Line Drive % 29.3 -0.7 ↓ 30.0 +8.2 ↑ 21.8 -6.8 ↓ 28.6
Groundball % 37.0 -0.5 ↓ 37.5 -5.2 ↓ 42.7 +4.6 ↑ 38.1
Pull % 39.1 +1.6 ↑ 37.5 +4.8 ↑ 32.7 -10.2 ↓ 42.9
Straight Away % 31.5 -4.3 ↓ 35.8 -1.5 ↓ 37.3 -5.6 ↓ 42.9
Opposite Field % 29.3 +3.5 ↑ 25.8 -4.2 ↓ 30.0 +15.7 ↑ 14.3
Weak Contact % 2.2 +2.2 ↑ 0.0 -3.6 ↓ 3.6 +3.6 ↑ 0.0
Pull Airball % 18.5 -0.7 ↓ 19.2 +5.6 ↑ 13.6 -10.2 ↓ 23.8
Topped Contact % 28.3 +4.1 ↑ 24.2 -11.3 ↓ 35.5 +11.7 ↑ 23.8
Under Contact % 27.2 -3.6 ↓ 30.8 +2.6 ↑ 28.2 +4.4 ↑ 23.8
Flare/Burner Contact % 25.0 -4.2 ↓ 29.2 +8.3 ↑ 20.9 -22.0 ↓ 42.9
Solid Contact % 6.5 -1.0 ↓ 7.5 +4.8 ↑ 2.7 -2.1 ↓ 4.8
HR/FB % 20.0 +2.8 ↑ 17.2 -2.8 ↓ 20.0 -5.0 ↓ 25.0
Popups 6 -4 ↓ 10 -4 ↓ 14 +11 ↑ 3
Flyballs 25 -4 ↓ 29 +4 ↑ 25 +21 ↑ 4
Line Drives 27 -9 ↓ 36 +12 ↑ 24 +18 ↑ 6
Groundballs 34 -11 ↓ 45 -2 ↓ 47 +39 ↑ 8
Plate Discipline
In Zone % 48.1 +1.0 ↑ 47.1 -1.1 ↓ 48.2 -1.3 ↓ 49.5
Out of Zone % 51.9 -1.0 ↓ 52.9 +1.1 ↑ 51.8 +1.3 ↑ 50.5
Edge % 42.5 -4.2 ↓ 46.7 +1.9 ↑ 44.8 -4.7 ↓ 49.5
Zone Swing % 67.7 -0.2 ↓ 67.9 +2.6 ↑ 65.3 -0.7 ↓ 66.0
Out of Zone Swing % 23.2 -4.6 ↓ 27.8 +1.8 ↑ 26.0 +0.5 ↑ 25.5
In Zone Contact % 82.4 +2.5 ↑ 79.9 -5.7 ↓ 85.6 +12.9 ↑ 72.7
Out of Zone Contact % 55.6 -3.6 ↓ 59.2 -11.7 ↓ 70.9 +9.4 ↑ 61.5
Whiff % 24.9 -1.7 ↓ 26.6 +7.8 ↑ 18.8 -11.6 ↓ 30.4
First Strike % 59.7 -0.2 ↓ 59.9 -3.0 ↓ 62.9 -1.1 ↓ 64.0
First Pitch Swing % 30.6 +5.0 ↑ 25.6 -2.7 ↓ 28.3 -7.7 ↓ 36.0
Swing % 44.6 -2.0 ↓ 46.6 +1.9 ↑ 44.7 -0.8 ↓ 45.5
Meatball Swing % 81.3 +11.3 ↑ 70.0 -8.9 ↓ 78.9 +23.3 ↑ 55.6
Meatball % 6.1 -1.0 ↓ 7.1 +1.2 ↑ 5.9 -3.0 ↓ 8.9
Zone Swing & Miss % 17.6 -2.5 ↓ 20.1 +5.7 ↑ 14.4 -12.9 ↓ 27.3
Out of Zone Swing & Miss % 44.4 +3.6 ↑ 40.8 +11.7 ↑ 29.1 -9.4 ↓ 38.5
In Zone 251 -79 ↓ 330 +22 ↑ 308 +258 ↑ 50
Out of Zone 271 -99 ↓ 370 +39 ↑ 331 +280 ↑ 51
Edge 222 -105 ↓ 327 +41 ↑ 286 +236 ↑ 50
In Zone Swings 170 -54 ↓ 224 +23 ↑ 201 +168 ↑ 33
Out of Zone Swings 63 -40 ↓ 103 +17 ↑ 86 +73 ↑ 13
In Zone Swing & Misses 30 -15 ↓ 45 +16 ↑ 29 +20 ↑ 9
Out of Zone Swing & Misses 28 -14 ↓ 42 +17 ↑ 25 +20 ↑ 5
Basic
Pitches 522 -179 ↓ 701 +45 ↑ 656 +555 ↑ 101
PA 135 -38 ↓ 173 +13 ↑ 160 +135 ↑ 25
AB 116 -38 ↓ 154 +15 ↑ 139 +117 ↑ 22
Hits 35 -9 ↓ 44 +7 ↑ 37 +28 ↑ 9
Singles 23 -4 ↓ 27 0 27 +20 ↑ 7
Doubles 6 -4 ↓ 10 +7 ↑ 3 +3 ↑ 0
Triples 1 -1 ↓ 2 0 2 +1 ↑ 1
Home Runs 5 0 5 0 5 +4 ↑ 1
Walks 15 -1 ↓ 16 +1 ↑ 15 +13 ↑ 2
Strikeouts 28 -9 ↓ 37 +4 ↑ 33 +31 ↑ 2
K% 20.7 -0.7 ↓ 21.4 +0.8 ↑ 20.6 +12.6 ↑ 8.0
BB% 11.1 +1.9 ↑ 9.2 -0.2 ↓ 9.4 +1.4 ↑ 8.0
HBP 0 0 0 -2 ↓ 2 +2 ↑ 0
Batted Balls 92 -28 ↓ 120 +10 ↑ 110 +89 ↑ 21
Number of Fastballs 272 -105 ↓ 377 -7 ↓ 384 +346 ↑ 38
Number of Offspeed 52 +20 ↑ 32 -11 ↓ 43 +13 ↑ 30
Number of Breaking 198 -93 ↓ 291 +80 ↑ 211 +179 ↑ 32
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2016 Shifts 25 .463 15 1 6.7 10 1 10.0
2017 Shifts 158 .321 87 1 1.1 71 9 12.7
2018 Shifts 172 .350 87 7 8.0 85 34 40.0
2019 Shifts 134 .362 71 6 8.5 63 35 55.6
! 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 %
2016 15 16.4 40.0% 0.0% 31 20.9 9.7% 6.5%
2017 156 17.3 12.8% 1.3% 152 22.7 2.0% 9.9%
2018 174 16.0 29.3% 1.1% 155 20.0 4.5% 6.5%
2019 130 15.4 41.5% 1.5% 115 19.4 0.0% 4.3%

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Pitch Distribution

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