Danny Duffy
P | B/T: L/L | 6' 3" 205LBS | Age: 33
Draft: 2007 | Rd: 3, #96, Kansas City Royals | Cabrillo (CA) HS
Poor Avg Great

Stats

W L ERA G GS SV IP SO WHIP
2021 4 3 2.51 13 12 0 61.0 65 1.21
11 Seasons 68 68 3.95 234 204 1 1172.1 1048 1.32
G W-L ERA IP SO WHIP
2021 13 4-3 2.51 61.0 65 1.21
11 Seasons 234 68-68 3.95 1172.1 1048 1.32

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Statcast Statistics

Season Age Pitches Batted Balls Barrels Barrel % Barrel/PA Exit Velocity Max EV Launch Angle Sweet Spot % XBA XSLG WOBA XWOBA XWOBACON HardHit% K% BB% ERA xERA
2015 26 2360 424 19 4.5 3.2 88.8 112.4 15.1 31.1 .254 .399 .328 .329 .357 32.5 17.3 9.0 4.08 4.52
2016 27 2707 494 39 7.9 5.3 89.5 113.5 15.8 34.8 .236 .424 .305 .307 .387 36.0 25.7 5.7 3.51 3.99
2017 28 2277 434 24 5.5 3.9 87.0 114.6 16.0 32.0 .248 .405 .306 .309 .362 31.1 21.3 6.7 3.81 4.09
2018 29 2785 477 35 7.3 5.1 88.6 115.1 16.8 36.7 .263 .450 .333 .345 .395 37.3 20.4 10.1 4.88 5.16
2019 30 2161 386 29 7.5 5.2 89.3 113.1 16.4 33.4 .260 .468 .323 .341 .393 37.8 20.7 8.3 4.34 5.23
2020 31 943 161 12 7.5 5 88.7 112.9 19.6 32.9 .248 .442 .324 .331 .395 36.0 23.6 9.1 4.95 4.67
2021 32 1009 165 11 6.7 4.4 89.5 113.6 17.7 39.4 .246 .415 .284 .315 .391 40.6 25.8 8.7 2.51 4.21
Player 14242 2541 169 6.7 4.6 88.7 115.1 16.4 34.0 .251 .429 .317 .325 .381 35.4 21.7 8.1
MLB 6.7 4.6 88.4 169.8 12.1 32.9 .246 .408 .317 .316 .370 35.6 22.0 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Duffy relies on 5 pitches.
4-Seam Fastball
(42.8%) ,
Slider
(18.2%) ,
Changeup
(15.4%) ,
Sinker
(12.8%) ,
Curveball
(10.8%) ,


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Pitch Tracking

Year Pitch Type # # RHB # LHB % MPH PA AB H 1B 2B 3B HR SO BBE BA XBA SLG XSLG WOBA XWOBA EV LA Spin Ext. Whiff% PutAway%
2021 4-Seam Fastball 432 339 93 42.8 93.7 119 104 22 17 3 0 2 30 74 .212 .230 .298 .378 .278 .312 88.7 26 2273 6.8 26.2 22.2
2021 Slider 184 107 77 18.2 83.4 48 48 9 6 1 0 2 18 30 .188 .252 .333 .477 .219 .308 89.3 16 2501 6.7 39.3 26.5
2021 Changeup 155 150 5 15.4 85.2 37 36 7 4 1 1 1 8 28 .194 .253 .361 .451 .244 .309 86.2 8 2293 6.8 37.3 21.6
2021 Sinker 129 118 11 12.8 93.6 28 23 9 5 2 1 1 1 22 .391 .287 .696 .472 .497 .388 95.5 11 2216 6.8 14.0 14.3
2021 Curveball 109 98 11 10.8 77.3 19 19 5 4 1 0 0 8 11 .263 .259 .316 .326 .250 .255 91.6 8 2483 6.7 31.0 17.8
2020 4-Seam Fastball 371 289 82 39.3 92.2 110 92 22 14 3 0 5 26 70 .239 .247 .435 .467 .328 .349 90.5 28 2173 6.9 21.4 23.0
2020 Slider 162 127 35 17.2 82.6 50 48 9 5 2 0 2 14 34 .188 .195 .354 .327 .245 .241 87.1 12 2391 6.8 34.5 21.5
2020 Changeup 144 138 6 15.3 83.9 43 38 10 7 2 0 1 12 27 .263 .216 .395 .347 .312 .282 83.9 9 2158 6.9 35.7 26.7
2020 Sinker 133 119 14 14.1 92.1 19 15 7 3 2 0 2 1 14 .467 .458 1.000 1.007 .625 .627 92.4 14 2120 6.9 18.9 10.0
2020 Curveball 133 127 6 14.1 75.5 20 20 5 4 1 0 0 4 16 .250 .286 .300 .365 .238 .284 86.6 17 2294 6.8 17.6 14.8
! Note: Years are in reverse order.
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Batted Ball Profile

Season GB % FB % LD % PU % Pull % Straight % Oppo % Weak % Topped % Under % Flare/Burner % Solid % Barrel % Barrel/PA
2015 40.6 21.9 27.4 10.1 35.4 37.0 27.6 3.5 31.4 24.5 24.3 5.7 4.5 3.2
2016 37.4 32.2 23.1 7.3 34.4 36.6 28.9 2.8 28.3 29.6 23.1 6.3 7.9 5.3
2017 41.0 25.3 24.4 9.2 36.9 36.2 27.0 5.3 27.9 27.0 25.8 6.7 5.5 3.9
2018 36.1 26.8 28.1 9.0 39.4 34.2 26.4 3.1 27.7 28.9 25.8 6.7 7.3 5.1
2019 35.8 27.2 28.0 9.1 37.6 42.5 19.9 4.4 25.9 31.1 24.1 7.0 7.5 5.2
2020 32.3 27.3 26.7 13.7 27.3 41.0 31.7 3.1 25.5 32.3 23.0 6.8 7.5 5.0
2021 33.9 24.2 30.9 10.9 28.5 38.2 33.3 1.8 24.2 30.9 30.9 5.5 6.7 4.4
Player 37.5 26.7 26.4 9.3 35.6 37.4 27.0 3.6 27.8 28.7 24.9 6.4 6.7 4.6
MLB 45.0 22.8 25.1 7.1 36.7 37.8 25.4 3.8 33.1 24.5 24.4 5.7 6.7 4.6
! 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
2021 4-Seamer KC L 432 93.7 11.9 2.9 19 5.2 -1.9 -27
2021 Slider KC L 184 83.4 42.6 4.3 11 6.4 -0.4 -6
2021 Changeup KC L 155 85.2 25.1 -5.6 -18 15.4 1.6 12
2021 Curveball KC L 109 77.3 62.1 6.0 11 7.4 -2.6 -26
2021 Sinker KC L 129 93.6 15.0 -5.8 -28 12.3 -2.2 -15
2020 4-Seamer KC L 371 92.2 13.9 2.0 12 6.0 -1.0 -14
2020 Slider KC L 162 82.6 41.1 1.1 3 4.8 -2.1 -30
2020 Curveball KC L 133 75.5 61.1 2.2 4 7.9 -3.0 -27
2020 Sinker KC L 133 92.1 17.5 -4.5 -20 12.5 -1.9 -13
2020 Changeup KC L 144 83.9 27.7 -4.5 -14 14.3 1.1 8
2019 4-Seamer KC L 956 92.3 14.6 1.5 9 7.2 0.0 1
2019 Curveball KC L 195 76.1 63.2 4.4 7 8.6 -2.2 -21
2019 Sinker KC L 192 92.1 18.0 -4.3 -19 12.8 -1.4 -10
2019 Slider KC L 569 84.0 37.6 0.5 1 3.1 -2.2 -42
2019 Changeup KC L 249 83.8 27.5 -3.7 -12 14.8 1.3 10
2018 4-Seamer KC L 1,058 93.0 13.5 2.3 15 7.0 -0.2 -3
2018 Slider KC L 449 83.3 41.2 2.8 7 4.6 -0.9 -17
2018 Curveball KC L 264 76.2 63.2 5.2 9 8.1 -2.2 -21
2018 Sinker KC L 488 93.3 16.1 -5.1 -24 11.7 -2.6 -18
2018 Changeup KC L 516 83.6 27.5 -4.3 -14 14.9 1.4 10
2017 Changeup KC L 519 83.7 26.3 -2.9 -10 11.5 -1.6 -12
2017 Curveball KC L 15 73.3 64.8 3.8 6 12.1 1.0 9
2017 Slider KC L 661 83.0 39.9 2.8 8 7.3 2.1 41
2017 4-Seamer KC L 562 92.8 13.3 1.0 7 2.6 -4.7 -64
2017 Sinker KC L 514 93.0 14.1 -5.7 -29 9.6 -4.9 -34
2016 Slider KC L 1 96.5 9.2 -6.0 -39 4.3 -2.0 86
2016 Sinker KC L 569 95.3 13.7 -3.9 -22 11.4 -3.4 -23
2016 4-Seamer KC L 1,028 95.5 11.4 1.3 10 5.5 -3.1 -37
2016 Curveball KC L 619 84.1 41.9 -1.6 -4 6.5 -0.6 -8
2016 Changeup KC L 465 85.8 24.7 -3.0 -11 14.6 1.1 8
! 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 %
2021 4-Seamer -2.1 -9 432 42.8 119 .212 .298 .297 26.2 25.2 22.2 .230 .378 .313 35.1
2021 Slider -1.0 -2 184 18.2 48 .188 .333 .222 39.3 37.5 26.5 .252 .477 .308 46.7
2021 Changeup -0.9 -1 155 15.4 37 .194 .361 .247 37.3 21.6 21.6 .253 .451 .309 28.6
2021 Sinker 1.2 2 129 12.8 28 .391 .696 .536 14.0 3.6 14.3 .287 .472 .390 63.6
2021 Curveball -0.7 -1 109 10.8 19 .263 .316 .255 31.0 42.1 17.8 .259 .326 .255 45.5
2020 4-Seamer -0.8 -3 371 39.3 110 .239 .435 .358 21.4 23.6 23.0 .247 .467 .349 41.4
2020 Slider 2.6 4 162 17.2 50 .188 .354 .248 34.5 28.0 21.5 .195 .327 .241 38.2
2020 Changeup -0.7 -1 144 15.3 43 .263 .395 .316 35.7 27.9 26.7 .216 .347 .282 18.5
2020 Curveball 0.3 0 133 14.1 20 .250 .300 .243 17.6 20.0 14.8 .286 .365 .284 37.5
2020 Sinker 0.9 1 133 14.1 19 .467 1.000 .632 18.9 5.3 10.0 .458 1.007 .627 35.7
2019 4-Seamer 0.4 4 956 44.2 261 .255 .427 .357 19.5 21.8 20.4 .268 .489 .373 43.0
2019 Slider 0.4 2 569 26.3 150 .239 .479 .331 30.7 23.3 17.9 .234 .480 .313 36.1
2019 Changeup 0.0 0 249 11.5 68 .231 .446 .304 32.3 19.1 18.3 .236 .387 .280 26.9
2019 Curveball 0.1 0 195 9.0 39 .333 .410 .327 25.7 23.1 12.3 .343 .447 .341 30.0
2019 Sinker -1.6 -3 192 8.9 37 .219 .344 .328 13.3 2.7 8.3 .268 .456 .354 41.9
2018 4-Seamer -0.8 -8 1,058 38.0 253 .239 .357 .326 21.5 22.9 19.1 .249 .412 .342 38.4
2018 Changeup 0.3 1 516 18.5 148 .248 .409 .309 29.1 18.2 18.1 .255 .448 .324 27.7
2018 Sinker 0.1 0 488 17.5 112 .341 .549 .441 16.2 11.6 16.9 .323 .545 .429 53.8
2018 Slider 2.9 13 449 16.1 115 .296 .574 .393 27.5 20.0 16.2 .271 .535 .370 35.3
2018 Curveball 0.5 1 264 9.5 63 .213 .262 .236 25.0 31.7 16.9 .223 .289 .248 31.7
2017 Slider -0.4 -2 661 29.0 159 .243 .318 .269 32.8 25.8 18.6 .226 .330 .265 29.1
2017 4-Seamer 0.7 4 562 24.7 156 .308 .462 .369 16.2 19.9 21.2 .289 .471 .354 34.2
2017 Changeup -1.1 -6 520 22.8 159 .187 .327 .254 31.0 25.8 24.1 .215 .357 .265 23.6
2017 Sinker 0.4 2 514 22.6 131 .297 .495 .399 15.6 13.0 18.3 .270 .489 .372 39.6
2017 Curveball 4.9 1 15 0.7 4 .500 1.000 .625 0.0 0.0 0.0 .232 .324 .238 0.0
! Note: Years are in reverse order.
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Spin Direction

Year Pitch Type Pitches MPH Active Spin % Total Movement (In.) Spin-Based Observed Deviation
2020 Changeup 130 84.0 92 18.1 10:00 10:00 0
2020 Curveball 125 75.5 91 17.9 5:15 5:00 15
2020 4-Seam Fastball 343 92.1 97 18.8 11:15 11:15 0
2020 Sinker 100 92.1 94 19.3 11:15 10:30 45
2020 Slider 134 82.5 32 6.3 4:15 4:00 15
2021 Changeup 155 85.2 92 19.9 10:15 10:15 0
2021 Curveball 109 77.3 92 20.6 5:30 5:15 15
2021 4-Seam Fastball 429 93.7 97 19.6 11:15 11:30 -15
2021 Sinker 127 93.6 94 20.2 11:15 10:45 30
2021 Slider 180 83.4 40 8.8 4:30 4:15 15
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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
2011 473 1,953 2 -3 12 7 19
2012 120 523 -5 1 3 1 0
2013 104 467 -6 -5 3 2 -6
2014 622 2,504 -20 -16 16 9 -12
2015 611 2,454 -13 -11 15 10 2
2016 731 2,707 -14 -17 14 5 -11
2017 609 2,272 -8 -13 14 6 -1
2018 691 2,776 -18 -10 24 12 8
2019 555 2,161 -4 -15 16 7 3
2020 242 943 6 -13 5 5 2
2021 251 1,009 -4 -17 6 3 -12
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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 %
2015 2,360 53.8 65.9 83.7 26.5 67.5 42.6 57.0 47.6 19.9 8.5 76.6
2016 2,707 54.0 69.5 78.1 30.4 56.9 41.5 62.2 51.5 27.2 9.0 80.7
2017 2,277 55.2 69.8 81.9 26.9 53.3 44.3 64.9 50.5 24.3 8.8 82.0
2018 2,785 49.5 67.1 81.9 25.7 61.7 42.5 58.2 46.1 23.3 8.5 75.0
2019 2,161 51.3 68.4 82.7 25.6 55.6 41.8 59.8 47.6 24.1 9.1 78.7
2020 943 49.7 66.7 84.7 26.2 48.4 44.0 57.0 46.3 25.6 7.7 79.5
2021 1,009 48.7 67.6 77.7 30.7 55.3 47.2 57.5 48.7 29.1 5.9 65.0
Player 14,242 52.2 68.0 81.5 27.3 58.0 43.0 60.0 48.5 24.4 8.5 77.9
MLB 48.5 66.9 82.0 28.3 58.4 42.6 60.7 47.0 24.6 7.3 76.0
! Note: All figures in this table cover the period 2015-present.

Percentile Rankings

Year xwOBA xBA xSLG xISO xOBP Brl Brl% EV HardHit% K% BB% Whiff% xERA FB Velo FB Spin CB Spin
2015 21 32 39 45 16 35 64 27 53 29 22 26 21 75 57 46
2016 54 66 34 17 81 6 12 24 35 80 85 80 54 85 46 33
2017 54 47 47 49 68 26 58 55 67 46 77 51 54 54 39
2018 12 18 14 15 16 10 32 41 33 39 21 40 12 57 54 36
2019 20 29 19 16 31 23 39 31 38 32 46 41 20 39 44 26
2020 35 40 31 27 44 13 44 43 56 51 44 43 35 41 28 20
2021 46 40 40 40 53 76 66 33 33 64 43 72 46 58 55 53
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Expected Home Runs

Year Team Avg HR Trot Actual HR xHR HR-xHR Doubters Mostly Gone No Doubters No Doubter %
2019 24.0 21 25.4 -4.0 5 14 15 71.4
2020 25.6 10 10.3 0.0 3 6 6 60.0
2021 23.1 6 7.5 -2.0 4 2 6 100.0

Expected Home Runs by Park

Year HR
2019 21 25 27 24 28 23 26 29 26 27 27 27 19 23 26 26 25 30 26 28 17 23 22 28 28 27 27 23 26 20 28
2020 10 10 11 10 13 9 0 12 9 11 11 9 8 12 8 12 9 11 9 11 8 8 9 12 10 12 11 8 13 7 13
2021 6 9 8 8 7 6 7 7 7 8 8 7 6 6 7 8 6 9 9 9 6 7 7 7 7 7 8 8 9 8 9
! Note: This tells how many of this player's home runs would have been out of other stadiums. This accounts for different wall heights and distances, but does not attempt to adjust for 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 2015 2016 +/-   2017 +/-   2018 +/-   2019 +/-   2020 +/-   2021 +/-   2022 +/-  
Fastball Velocity 94.3 95.4 1.1 ↑ 92.9 -2.5 ↓ 93.1 0.2 ↑ 92.3 -0.8 ↓ 92.2 -0.1 ↓ 93.7 1.5 ↑ undefined
Offspeed Velocity 85.6 85.8 0.2 ↑ 83.7 -2.1 ↓ 83.6 -0.1 ↓ 83.8 0.2 ↑ 83.9 0.1 ↑ 85.2 1.3 ↑ undefined
Breaking Velocity 81.2 84 2.8 ↑ 82.8 -1.2 ↓ 80.7 -2.1 ↓ 82 1.3 ↑ 79.4 -2.6 ↓ 81.2 1.8 ↑ undefined
Exit Velocity 88.8 89.5 0.7 ↑ 87 -2.5 ↓ 88.6 1.6 ↑ 89.3 0.7 ↑ 88.7 -0.6 ↓ 89.5 0.8 ↑ undefined
Launch Angle 15.1 15.8 0.7 ↑ 16 0.2 ↑ 16.8 0.8 ↑ 16.4 -0.4 ↓ 19.6 3.2 ↑ 17.7 -1.9 ↓ undefined
Barrel % 4.5 7.9 3.4 ↑ 5.5 -2.4 ↓ 7.3 1.8 ↑ 7.5 0.2 ↑ 7.5 0 6.7 -0.8 ↓ undefined
Hard Hit % 32.5 36 3.5 ↑ 31.1 -4.9 ↓ 37.3 6.2 ↑ 37.8 0.5 ↑ 36 -1.8 ↓ 40.6 4.6 ↑ undefined
Sweet Spot % 31.1 34.8 3.7 ↑ 32 -2.8 ↓ 36.7 4.7 ↑ 33.4 -3.3 ↓ 32.9 -0.5 ↓ 39.4 6.5 ↑ undefined
xBA .254 .236 -0.018 ↓ .248 0.012 ↑ .263 0.015 ↑ .26 -0.003 ↓ .248 -0.012 ↓ .246 -0.002 ↓ undefined
BA .264 .241 -0.023 ↓ .257 0.016 ↑ .264 0.007 ↑ .251 -0.013 ↓ .249 -0.002 ↓ .226 -0.023 ↓ undefined
xwOBA .329 .307 -0.022 ↓ .309 0.002 ↑ .345 0.036 ↑ .341 -0.004 ↓ .331 -0.01 ↓ .315 -0.016 ↓ undefined
wOBA .328 .305 -0.023 ↓ .306 0.001 ↑ .333 0.027 ↑ .323 -0.01 ↓ .324 0.001 ↑ .284 -0.04 ↓ undefined
xSLG .399 .424 0.025 ↑ .405 -0.019 ↓ .45 0.045 ↑ .468 0.018 ↑ .442 -0.026 ↓ .415 -0.027 ↓ undefined
SLG .405 .419 0.014 ↑ .397 -0.022 ↓ .426 0.029 ↑ .438 0.012 ↑ .437 -0.001 ↓ .357 -0.08 ↓ undefined
K% 17.3 25.7 8.4 ↑ 21.3 -4.4 ↓ 20.4 -0.9 ↓ 20.7 0.3 ↑ 23.6 2.9 ↑ 25.8 2.2 ↑ undefined
BB% 9 5.7 -3.3 ↓ 6.7 1 ↑ 10.1 3.4 ↑ 8.3 -1.8 ↓ 9.1 0.8 ↑ 8.7 -0.4 ↓ undefined
Swing % 47.6 51.5 3.9 ↑ 50.5 -1 ↓ 46.1 -4.4 ↓ 47.6 1.5 ↑ 46.3 -1.3 ↓ 48.7 2.4 ↑ undefined
Whiff% 19.9 27.2 7.3 ↑ 24.3 -2.9 ↓ 23.3 -1 ↓ 24.1 0.8 ↑ 25.6 1.5 ↑ 29.1 3.5 ↑ undefined
In Zone % 53.8 54 0.2 ↑ 55.2 1.2 ↑ 49.5 -5.7 ↓ 51.3 1.8 ↑ 49.7 -1.6 ↓ 48.7 -1 ↓ undefined
Out of Zone % 46.2 46 -0.2 ↓ 44.8 -1.2 ↓ 50.5 5.7 ↑ 48.7 -1.8 ↓ 50.3 1.6 ↑ 51.3 1 ↑ undefined
Out of Zone Swing % 26.5 30.4 3.9 ↑ 26.9 -3.5 ↓ 25.7 -1.2 ↓ 25.6 -0.1 ↓ 26.2 0.6 ↑ 30.7 4.5 ↑ undefined
First Pitch Swing % 28.4 34.2 5.8 ↑ 36.5 2.3 ↑ 28.8 -7.7 ↓ 30.3 1.5 ↑ 27.7 -2.6 ↓ 27.4 -0.3 ↓ undefined
First Pitch Strike % 57 62.2 5.2 ↑ 64.9 2.7 ↑ 58.2 -6.7 ↓ 59.8 1.6 ↑ 57 -2.8 ↓ 57.5 0.5 ↑ undefined
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Statcast Shift Statistics

vs RHHvs LHH
YearPAwOBAPAShifts%PAShifts%
2016 722 .306 610 3 0.5 112 6 5.4
2017 609 .306 502 17 3.4 107 8 7.5
2018 691 .333 569 97 17.0 122 35 28.7
2019 555 .323 425 42 9.9 130 31 23.8
2020 242 .324 208 46 22.1 34 19 55.9
2021 251 .284 202 51 25.2 49 15 30.6

Pitch Distribution

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