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Danny Duffy
P | B/T: L/L | 6' 3" 205LBS | Age: 32

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

Statcast Statistics

Season Age Pitches Batted Balls Barrels Barrel % Exit Velocity Max EV Launch Angle Sweet Spot % XBA XSLG WOBA XWOBA XWOBACON HardHit% K% BB% ERA xERA
2015 27 2360 424 19 4.5 88.8 112.4 15.6 30 .235 .371 .328 .309 .328 33.7 17.3 9 4.08 4.13
2016 28 2707 494 39 7.9 89.5 113.5 15.8 34.8 .233 .419 .305 .303 .381 36.3 25.7 5.7 3.51 3.99
2017 29 2277 434 24 5.5 87 114.6 16 32 .247 .403 .306 .307 .360 31.1 21.3 6.7 3.81 4.12
2018 30 2785 477 35 7.3 88.6 115.1 16.8 36.7 .262 .449 .333 .345 .394 37.3 20.4 10.1 4.88 5.23
2019 31 2161 386 29 7.5 89.3 113.1 16.4 33.4 .260 .468 .323 .341 .393 37.8 20.7 8.3 4.34 5.34
2020 32 943 161 12 7.5 88.7 112.9 19.6 32.9 .245 .436 .324 .327 .388 36 23.6 9.1 4.95 4.61
2021 33 1009 165 11 6.7 89.5 113.6 17.7 39.4 .245 .410 .285 .315 .391 40.6 25.8 8.7 2.51 4.22
14242 2541 169 6.7 88.7 115.1 16.5 33.8 .247 .422 .317 .321 .374 35.7 21.7 8.1
6.6 88.3 122.2 12 32.8 .243 .402 .317 .312 .363 35.5 22 8.4

Statcast Pitch Arsenal

Duffy relies on 5 pitches.
4-Seam Fastball
(43.4%) ,
Slider
(18.2%) ,
Changeup
(15.4%) ,
Sinker
(12.2%) ,
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 438 345 93 43.4 93.7 121 106 23 17 4 0 2 30 76 .217 .229 .311 .377 .284 .313 88.7 26 2272 6.8 26.2 21.7
2021 Slider 184 107 77 18.2 83.4 48 48 9 6 1 0 2 18 30 .188 .253 .333 .474 .220 .311 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 .248 .361 .441 .245 .303 86.2 8 2293 6.8 37.3 21.6
2021 Sinker 123 112 11 12.2 93.6 26 21 8 5 1 1 1 1 20 .381 .295 .667 .467 .489 .396 96.2 7 2216 6.8 13.0 25.0
2021 Curveball 109 98 11 10.8 77.3 19 19 5 4 1 0 0 8 11 .263 .253 .316 .315 .251 .250 91.6 8 2483 6.7 31.0 17.8
2020 4-Seam Fastball 372 290 82 39.4 92.2 110 92 22 14 3 0 5 26 70 .239 .239 .435 .452 .328 .340 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 143 137 6 15.2 83.8 43 38 10 7 2 0 1 12 27 .263 .216 .395 .347 .312 .282 83.9 9 2161 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 2118 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 2302 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 %
2015 40.6 21.9 27.4 10.1 34.9 37.5 27.6 3.1 29 23.6 23.8 5.4 4.5
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
2017 41 25.3 24.4 9.2 36.9 36.2 27 5.3 27.9 27 25.8 6.7 5.5
2018 36.1 26.8 28.1 9 39.4 34.2 26.4 3.1 27.7 28.9 25.8 6.7 7.3
2019 35.8 27.2 28 9.1 37.6 42.5 19.9 4.4 25.9 31.1 24.1 7 7.5
2020 32.3 23.6 30.4 13.7 27.3 41 31.7 3.1 25.5 32.3 23 6.8 7.5
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
37.5 26.5 26.7 9.3 35.5 37.5 27 3.5 27.4 28.5 24.8 6.4 6.7
45.2 22.3 25.5 7.1 36.6 37.9 25.5 3.7 33.3 24.3 24.5 5.6 6.6

Pitch Movement


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 Changeup KC L 155 85.2 25.1 -5.5 -18 15.4 1.5 11
2021 4-Seamer KC L 438 93.7 11.9 2.7 19 5.3 -1.9 -27
2021 Sinker KC L 123 93.6 15.1 -5.6 -27 12.4 -2.2 -15
2021 Slider KC L 184 83.4 42.6 4.2 11 6.4 -0.3 -4
2021 Curveball KC L 109 77.3 62.1 6 11 7.4 -2.7 -27
2020 Curveball KC L 133 75.5 61.1 2.5 4 7.9 -3 -27
2020 Changeup KC L 143 83.8 27.7 -4.5 -14 14.3 1.1 9
2020 Slider KC L 162 82.6 41.1 1.2 3 4.8 -2 -30
2020 Sinker KC L 133 92.1 17.5 -4.3 -20 12.5 -1.8 -12
2020 4-Seamer KC L 372 92.2 13.9 1.9 12 6 -0.9 -13
2019 Sinker KC L 192 92.1 18 -4.2 -19 12.8 -1.4 -10
2019 Slider KC L 569 84 37.6 0.5 1 3.1 -2.2 -42
2019 4-Seamer KC L 956 92.3 14.6 1.5 9 7.2 0.1 1
2019 Curveball KC L 195 76.1 63.2 4.4 7 8.6 -2.2 -21
2019 Changeup KC L 249 83.8 27.5 -3.7 -12 14.8 1.3 10
2018 Sinker KC L 488 93.3 16.1 -5.1 -24 11.7 -2.7 -19
2018 Slider KC L 449 83.3 41.2 2.8 7 4.6 -0.9 -17
2018 4-Seamer KC L 1058 93 13.5 2.3 15 7 -0.2 -2
2018 Curveball KC L 264 76.2 63.2 5.2 9 8.1 -2.2 -21
2018 Changeup KC L 516 83.6 27.5 -4.3 -14 14.9 1.4 10
2017 Curveball KC L 15 73.3 64.8 3.8 6 12.1 1 9
2017 Slider KC L 661 83 39.9 2.8 8 7.3 2.1 42
2017 Sinker KC L 514 93 14.1 -5.7 -29 9.6 -4.9 -34
2017 4-Seamer KC L 562 92.8 13.3 1 7 2.6 -4.7 -64
2017 Changeup KC L 519 83.7 26.3 -2.9 -10 11.5 -1.6 -12
2016 Changeup KC L 465 85.8 24.7 -3 -11 14.6 1.1 8
2016 4-Seamer KC L 1028 95.5 11.4 1.3 10 5.5 -3.1 -37
2016 Slider KC L 1 96.5 9.2 -6 -39 4.3 -2 86
2016 Curveball KC L 619 84.1 41.9 -1.6 -4 6.5 -0.6 -8
2016 Sinker KC L 569 95.3 13.7 -3.9 -22 11.4 -3.4 -23
! 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 Curveball -0.6 -1 109 10.8 19 .263 .316 .255 31 42.1 17.8 .253 .315 .25 45.5
2021 Sinker 1 1 123 12.2 26 .381 .667 .529 13 3.8 25 .295 .467 .398 65
2021 Changeup -0.8 -1 155 15.4 37 .194 .361 .247 37.3 21.6 21.6 .248 .441 .303 28.6
2021 Slider -0.9 -2 184 18.2 48 .188 .333 .222 39.3 37.5 26.5 .253 .474 .311 46.7
2021 4-Seamer -2.1 -9 438 43.4 121 .217 .311 .295 26.2 24.8 21.7 .229 .377 .314 35.5
2020 Sinker 1 1 133 14.1 19 .467 1 .632 18.9 5.3 10 .458 1.007 .627 35.7
2020 Curveball 0.3 0 133 14.1 20 .25 .3 .243 17.6 20 14.8 .286 .365 .284 37.5
2020 Changeup -0.5 -1 143 15.2 43 .263 .395 .316 35.7 27.9 26.7 .216 .347 .282 18.5
2020 Slider 2.6 4 162 17.2 50 .188 .354 .248 34.5 28 21.5 .195 .327 .241 38.2
2020 4-Seamer -0.8 -3 372 39.4 110 .239 .435 .348 21.4 23.6 23 .239 .452 .34 41.4
2019 Sinker -1.6 -3 192 8.9 37 .219 .344 .328 13.3 2.7 8.3 .268 .456 .354 41.9
2019 Curveball 0.2 0 195 9 39 .333 .41 .327 25.7 23.1 12.3 .343 .447 .341 30
2019 Changeup 0.1 0 249 11.5 68 .231 .446 .304 32.3 19.1 18.3 .236 .387 .28 26.9
2019 Slider 0.3 2 569 26.3 150 .239 .479 .325 30.7 23.3 17.9 .234 .48 .313 36.1
2019 4-Seamer 0.5 5 956 44.2 261 .255 .427 .357 19.5 21.8 20.4 .268 .489 .373 43
2018 Curveball 0.5 1 264 9.5 63 .213 .262 .236 25 31.7 16.9 .223 .289 .248 31.7
2018 Sinker 0.1 1 488 17.5 112 .341 .549 .441 16.2 11.6 16.9 .323 .545 .429 53.8
2018 Slider 3 13 449 16.1 115 .296 .574 .393 27.5 20 16.2 .271 .535 .369 35.3
2018 Changeup 0.4 2 516 18.5 148 .248 .409 .309 29.1 18.2 18.1 .255 .448 .324 27.7
2018 4-Seamer -0.8 -8 1058 38 253 .239 .357 .325 21.5 22.9 19.1 .248 .411 .341 38.4
2017 Curveball 4.9 1 15 0.7 4 .5 1 .625 0 0 0 .232 .324 .238 0
2017 Sinker 0.5 2 514 22.6 131 .297 .495 .396 15.6 13 18.3 .267 .484 .369 39.6
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 Slider -0.3 -2 661 29 159 .243 .318 .271 32.8 25.8 18.6 .223 .325 .261 29.1
2017 Changeup -1 -5 520 22.8 159 .187 .327 .254 31 25.8 24.1 .215 .357 .265 23.6
! 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 128 83.9 92 18.1 10:00 10:00 0
2020 Curveball 124 75.5 91 17.9 5:15 5:00 15
2020 4-Seam Fastball 344 92.1 97 18.8 11:15 11:15 0
2020 Sinker 100 92.1 95 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 435 93.7 97 19.6 11:15 11:30 -15
2021 Sinker 121 93.6 94 20.2 11:15 10:45 30
2021 Slider 180 83.4 40 8.8 4:30 4:15 15
! 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 1953 2 -3 13 7 19
2012 120 523 -5 1 3 1 1
2013 104 467 -6 -5 3 2 -6
2014 622 2504 -19 -18 16 9 -13
2015 581 2348 -10 -10 15 10 4
2016 725 2695 -13 -15 14 5 -10
2017 609 2272 -7 -12 14 6 1
2018 691 2776 -18 -10 25 12 9
2019 555 2161 -4 -15 16 7 4
2020 242 943 6 -13 5 5 2
2021 251 1009 -3 -18 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 2360 53.7 66 83.9 26.7 67.6 43.4 57 47.6 19.9 8.3 75.9
2016 2707 54 69.6 78.1 30.4 57 41.6 62.2 51.5 27.2 9 81
2017 2277 55.2 69.8 81.9 26.9 53.3 44.3 64.9 50.5 24.3 8.8 82
2018 2785 49.5 67.1 81.9 25.7 61.7 42.5 58.2 46.1 23.3 8.5 75
2019 2161 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 57 46.3 25.6 7.7 79.5
2021 1009 48.7 67.6 77.7 30.7 55.3 47.2 57.5 48.7 29.1 5.9 65
14242 52.2 68.1 81.5 27.3 58 43.1 60 48.5 24.4 8.5 77.9
48.5 66.7 82.1 28.3 58.6 42.6 60.6 46.9 24.5 7.2 75.9

Percentile Rankings

Year xwOBA xBA xSLG xISO xOBP Brl Brl% EV HardHit% K% BB% Whiff% xERA FB Velo FB Spin CB Spin
2015 38 52 54 53 29 35 64 27 48 29 22 26 38 74 57 51
2016 54 65 35 16 80 6 12 24 35 80 85 80 54 85 45 37
2017 54 46 45 49 67 26 58 55 67 46 77 51 54 53 38 35
2018 12 18 13 14 14 10 32 42 32 39 21 40 12 57 54 39
2019 19 26 18 15 29 23 39 31 38 32 46 41 19 39 44 28
2020 37 43 32 28 47 13 44 43 56 51 44 43 37 37 26 24
2021 42 36 38 41 51 53 66 35 37 61 48 69 42 58 50 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 21 25.3 -4 7 12 16 76.2
2020 25.6 10 9.9 0 3 6 6 60
2021 23.1 6 7.2 -1 3 3 5 83.3

Expected Home Runs by Park

Year HR
2019 21 28 27 27 28 22 25 27 26 27 27 26 19 23 26 26 24 26 25 27 19 22 25 29 26 27 27 25 25 21 28
2020 10 10 11 10 13 9 8 12 9 11 11 7 7 11 8 12 9 10 9 10 8 8 9 12 10 12 11 9 13 7 10
2021 6 9 7 8 7 6 7 7 6 8 8 7 6 5 7 7 6 9 9 9 6 7 7 6 7 7 7 8 8 8 8
! 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 +/-  
Fastball Velocity 94.3 95.4 1.1 92.9 -2.5 93.1 0.2 92.3 -0.8 92.1 -0.2 93.7 1.6
Offspeed Velocity 85.6 85.8 0.2 83.7 -2.1 83.6 -0.1 83.8 0.2 83.8 0 85.2 1.4
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
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
Launch Angle 15.6 15.8 0.2 16 0.2 16.8 0.8 16.4 -0.4 19.6 3.2 17.7 -1.9
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
Hard Hit % 33.7 36.3 2.6 31.1 -5.2 37.3 6.2 37.8 0.5 36 -1.8 40.6 4.6
Sweet Spot % 30 34.8 4.8 32 -2.8 36.7 4.7 33.4 -3.3 32.9 -0.5 39.4 6.5
xBA .235 .233 -0.002 .247 0.014 .262 0.015 .26 -0.002 .245 -0.015 .245 0
BA .264 .241 -0.023 .257 0.016 .264 0.007 .251 -0.013 .249 -0.002 .226 -0.023
xwOBA .309 .303 -0.006 .307 0.004 .345 0.038 .341 -0.004 .327 -0.014 .315 -0.012
wOBA .328 .305 -0.023 .306 0.001 .333 0.027 .323 -0.01 .324 0.001 .285 -0.039
xSLG .371 .419 0.048 .403 -0.016 .449 0.046 .468 0.019 .436 -0.032 .41 -0.026
SLG .405 .419 0.014 .397 -0.022 .426 0.029 .438 0.012 .437 -0.001 .357 -0.08
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
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
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
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
In Zone % 53.7 54 0.3 55.2 1.2 49.5 -5.7 51.3 1.8 49.7 -1.6 48.7 -1
Out of Zone % 46.3 46 -0.3 44.8 -1.2 50.5 5.7 48.7 -1.8 50.3 1.6 51.3 1
Out of Zone Swing % 26.7 30.4 3.7 26.9 -3.5 25.7 -1.2 25.6 -0.1 26.2 0.6 30.7 4.5
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
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
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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 .285 202 51 25.2 49 15 30.6

Pitch Distribution