J.A. Happ
P | Bats/Throws: L/L | 6' 5" 205LBS | Age: 42
Draft: 2004 | Rd: 3, #92, Philadelphia Phillies | Northwestern
W L ERA G GS SV IP SO WHIP
2019 12 8 4.91 31 30 0 161.1 140 1.30
2020 2 2 3.47 9 9 0 49.1 42 1.05
2021 10 8 5.79 30 30 0 152.1 122 1.48
15 Seasons 133 100 4.13 354 328 0 1,893.2 1,661 1.31
G W-L ERA IP SO WHIP
2019 31 12-8 4.91 161.1 140 1.30
2020 9 2-2 3.47 49.1 42 1.05
2021 30 10-8 5.79 152.1 122 1.48
15 Seasons 354 133-100 4.13 1,893.2 1,661 1.31
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
2015 32 2839 519 24 4.6 3.3 89.4 112.4 12.9 34.9 .254 .387 .304 .304 .362 37.4 21.1 6.3 3.61 3.82
2016 33 3033 567 42 7.4 5.3 89.5 113.6 12.2 32.1 .256 .420 .291 .321 .371 37.2 20.5 7.5 3.19 4.37
2017 34 2487 438 19 4.3 3.0 85.9 118.4 9.0 33.3 .237 .375 .301 .291 .345 31.1 22.7 7.3 3.53 3.60
2018 35 3051 479 42 8.8 5.7 88.4 117.3 15.4 30.9 .226 .400 .295 .302 .375 34.0 26.4 7.0 3.65 3.84
2019 36 2696 483 40 8.3 5.9 89.2 112.2 13.7 33.3 .258 .461 .329 .331 .387 37.5 20.6 7.2 4.91 4.89
2020 37 787 137 7 5.1 3.6 88.1 110.4 12.7 26.3 .221 .342 .284 .279 .316 34.3 21.4 7.7 3.47 3.25
2021 38 2674 498 58 11.6 8.6 90.2 114.1 16.4 38.4 .274 .502 .361 .356 .408 41.8 18.2 7.2 5.79 5.54
Player 17567 3121 232 7.4 5.3 88.8 118.4 13.3 33.5 .250 .420 .311 .316 .372 36.5 21.6 7.1
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

Happ relies on 5 pitches.
Four Seamer
(53.9%) ,
Sinker
(17.7%) ,
Slider
(15.1%) ,
Changeup
(12.0%) ,
Curveball
(1.3%) ,


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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
2015 43.5 22.0 27.2 7.3 31.8 39.1 29.1 2.9 33.1 24.3 26.8 5.8 4.6 3.3
2016 43.7 22.9 25.9 7.4 32.3 41.6 26.1 3.5 32.3 25.6 24.5 5.3 7.4 5.3
2017 47.7 21.9 25.1 5.3 26.0 42.9 31.1 6.6 33.3 24.0 24.7 5.9 4.3 3.0
2018 40.7 27.8 21.7 9.8 33.4 38.6 28.0 2.5 31.3 29.9 23.2 3.8 8.8 5.7
2019 41.0 26.7 23.8 8.3 30.6 45.8 23.4 2.5 32.7 27.1 23.4 5.8 8.3 5.9
2020 44.5 23.4 23.4 8.8 43.1 38.0 19.0 2.9 32.8 30.7 24.1 4.4 5.1 3.6
2021 35.7 30.7 27.1 6.4 32.3 37.8 29.9 2.8 26.9 27.7 22.3 8.4 11.6 8.6
Player 42.1 25.2 25.1 7.5 31.7 40.8 27.5 3.4 31.7 26.6 24.2 5.8 7.4 5.3
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


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
2021 Curveball STL L 34 76.2 52.1 -6.2 4.7GLV -3.7 -5.1 -3.6 4.7GLV -3.2
2021 4-Seam Fastball STL L 1442 91.0 16.1 0.0 7.9ARM 1.1 17.0 0.9 7.9ARM 0.3
2021 Slider STL L 403 83.0 36.1 -2.6 2.5GLV -3.0 3.5 -1.9 2.5GLV -2.3
2021 Changeup STL L 322 86.1 28.0 -1.3 13.9ARM 0.2 8.9 -1.1 13.9ARM 0.0
2021 Sinker STL L 473 89.1 26.1 1.6 13.8ARM -0.5 8.3 1.2 13.8ARM -0.9
2020 Curveball NYY L 9 80.9 42.1 -9.1 3.2GLV -4.1 -0.2 -8.6 3.2GLV -5.0
2020 Changeup NYY L 109 86.4 27.5 -1.4 14.9ARM 1.7 9.4 -1.6 14.9ARM 1.3
2020 4-Seam Fastball NYY L 349 91.6 15.1 0.9 7.8ARM 1.3 17.7 1.7 7.8ARM 0.3
2020 Slider NYY L 147 84.2 33.7 -3.5 2.7GLV -2.2 4.8 -3.5 2.7GLV -2.4
2020 Sinker NYY L 173 89.3 25.5 1.7 13.4ARM -0.8 8.8 -0.1 13.4ARM -1.1
! 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 %
2021 4-Seam Fastball -0.1 -2 1,442 53.9 336 .266 .532 .382 20.4 22.9 17.7 .256 .506 .366 46.5
2021 Sinker 0.1 1 473 17.7 150 .319 .433 .343 15.6 10.7 14.3 .308 .481 .352 37.8
2021 Slider -2.2 -9 403 15.1 83 .296 .568 .369 22.8 16.9 9.6 .287 .549 .355 54.4
2021 Changeup -2.4 -8 322 12.0 93 .297 .462 .336 18.7 11.8 13.8 .274 .483 .333 24.7
2021 Curveball -10.5 -4 34 1.3 9 .333 1.000 .544 20.0 44.4 22.2 .246 .465 .300 40.0
2020 4-Seam Fastball 0.3 1 349 44.3 74 .210 .452 .340 21.9 24.3 17.1 .194 .326 .292 40.0
2020 Sinker 3.0 5 173 22.0 56 .135 .250 .202 21.8 25.0 23.7 .197 .299 .249 31.6
2020 Slider 1.5 2 147 18.7 30 .200 .400 .252 31.1 20.0 14.0 .223 .364 .251 29.2
2020 Changeup -0.5 -1 109 13.9 32 .323 .419 .366 15.8 9.4 7.9 .322 .439 .342 32.1
2020 Curveball -8.4 -1 9 1.1 4 .333 .667 .488 25.0 25.0 20.0 .131 .212 .279 50.0
! 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
2021 Changeup 317 86.1 96 16.8 10:15 10:00 15
2021 Curveball 34 76.2 42 9.0 4:00 4:45 -45
2021 4-Seam Fastball 1,442 91.0 91 18.3 10:45 11:00 -15
2021 Sinker 470 89.1 83 16.1 11:00 10:00 60
2021 Slider 400 83.0 26 4.5 12:30 1:45 -75
2020 Changeup 109 86.4 97 17.8 10:15 10:00 15
2020 4-Seam Fastball 349 91.6 90 18.9 10:45 11:15 -30
2020 Sinker 173 89.3 80 16.0 11:00 10:00 60
2020 Slider 147 84.2 29 5.0 12:15 1:15 -60
! Note: Years are in reverse order.
! 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
2008 149 585 8 3 -5 -2 4
2009 704 2,762 25 23 -17 -9 22
2010 364 1,560 -2 19 -7 -8 2
2011 692 2,960 9 -1 -22 -11 -24
2012 626 2,532 12 2 -13 -8 -7
2013 414 1,721 7 13 -16 -5 -2
2014 672 2,708 13 -2 -13 -8 -10
2015 713 2,822 15 25 -24 -9 7
2016 841 3,211 27 28 -15 -11 30
2017 624 2,484 13 20 -13 -7 13
2018 743 3,093 10 35 -24 -12 9
2019 692 2,768 8 21 -18 -11 0
2020 213 856 6 6 -6 -2 4
2021 671 2,674 11 1 -20 -12 -21
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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 2,839 50.2 65.4 83.5 26.2 67.1 43.0 60.3 45.8 20.2 6.8 77.1
2016 3,033 50.3 67.8 81.7 25.9 65.6 43.7 59.9 47.0 22.3 6.9 78.0
2017 2,487 46.1 68.8 82.4 29.6 68.2 44.5 62.0 47.7 22.1 6.2 79.2
2018 3,051 47.0 69.6 81.9 28.5 61.8 45.7 60.9 47.8 24.1 6.8 82.1
2019 2,696 45.8 71.4 82.7 28.4 60.7 45.2 58.7 48.1 23.7 6.4 79.7
2020 787 48.4 71.9 80.7 25.6 66.3 43.7 65.3 48.0 22.5 5.0 79.5
2021 2,674 46.6 71.9 85.2 27.0 67.8 43.5 61.7 47.9 19.6 5.4 87.5
Player 17,567 47.8 69.2 82.8 27.5 65.1 44.3 60.8 47.4 22.1 6.4 80.3
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
2015 53 32 49 59 55 23 62 15 12 55 69 27 16 45 83 42 46
2016 36 37 37 42 44 3 19 24 24 47 56 41 17 37 79 18 48
2017 74 61 69 70 78 37 80 82 67 59 67 33 71 33 70 13 47
2018 56 65 45 27 74 2 12 46 63 72 70 44 57 34 69 10 44
2019 29 33 24 19 48 6 25 34 42 32 64 36 42 22 53 44
2020 78 68 77 79 78 38 75 54 65 38 62 21 28 17 61 35
2021 10 13 5 4 29 1 5 18 25 16 67 7 39 10 54 32
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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 23.2 23 19.8 3 15 11 11 47.8
2017 23.1 18 18.4 0 5 18 6 33.3
2018 22.5 28 27.6 0 11 16 16 57.1
2019 22.9 35 27.1 8 13 19 13 37.1
2020 22.6 10 7.4 3 1 6 3 30.0
2021 23.8 30 30.4 0 13 26 12 40.0
Player 23.1 144 130.8 13 58 96 61 42.4
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
2016 23 19 16 26 20 21 20 20 17 17 17 24 19 16 20 22 15 17 18 20 19 17 29 28 19 17 20 27 21 18 16
2017 18 18 16 19 20 16 23 17 13 13 17 24 18 19 18 20 15 15 20 18 18 16 26 22 18 18 18 24 22 21 11
2018 28 35 25 26 28 26 29 25 23 20 25 30 34 26 26 35 27 25 28 29 31 31 34 30 22 24 25 28 36 25 20
2019 35 30 24 31 29 28 29 29 20 18 21 29 32 25 26 29 24 24 26 29 29 28 37 33 25 23 22 32 33 25 22
2020 10 8 6 9 7 9 9 8 7 4 6 9 6 6 7 8 9 8 8 9 9 5 10 7 7 5 7 8 7 8 7
2021 30 35 26 29 32 28 36 30 22 23 27 35 28 21 32 37 27 29 34 33 31 31 38 36 25 25 35 34 33 27 34
Player 144 145 113 140 136 128 146 129 102 95 113 151 137 113 129 151 117 118 134 138 137 128 174 156 116 112 127 153 152 124 110
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 2015 2016 +/-   2017 +/-   2018 +/-   2019 +/-   2020 +/-   2021 +/-  
Fastball Velocity 92.4 92.2 -0.2 91.9 -0.3 91.9 0.0 91.3 -0.6 90.8 -0.5 90.5 -0.3
Offspeed Velocity 85.6 84.4 -1.2 86.4 2.0 86.0 -0.4 86.0 0.0 86.4 0.4 86.1 -0.3
Breaking Velocity 82.3 83.2 0.9 83.3 0.1 84.2 0.9 84.6 0.4 84.0 -0.6 82.5 -1.5
Exit Velocity 89.4 89.5 0.1 85.9 -3.6 88.4 2.5 89.2 0.8 88.1 -1.1 90.2 2.1
Launch Angle 12.9 12.2 -0.7 9.0 -3.2 15.4 6.4 13.7 -1.7 12.7 -1.0 16.4 3.7
Barrel % 4.6 7.4 2.8 4.3 -3.1 8.8 4.5 8.3 -0.5 5.1 -3.2 11.6 6.5
Hard Hit % 37.4 37.2 -0.2 31.1 -6.1 34.0 2.9 37.5 3.5 34.3 -3.2 41.8 7.5
LA Sweet-Spot % 34.9 32.1 -2.8 33.3 1.2 30.9 -2.4 33.3 2.4 26.3 -7.0 38.4 12.1
xBA .254 .256 0.002 .237 -0.019 .226 -0.011 .258 0.032 .221 -0.037 .274 0.053
BA .259 .231 -0.028 .252 0.021 .225 -0.027 .258 0.033 .208 -0.050 .288 0.080
xwOBA .304 .321 0.017 .291 -0.030 .302 0.011 .331 0.029 .279 -0.052 .356 0.077
wOBA .304 .291 -0.013 .301 0.010 .295 -0.006 .329 0.034 .284 -0.045 .361 0.077
xSLG .387 .420 0.033 .375 -0.045 .400 0.025 .461 0.061 .342 -0.119 .502 0.160
SLG .391 .371 -0.020 .395 0.024 .389 -0.006 .469 0.080 .382 -0.087 .511 0.129
K% 21.1 20.5 -0.6 22.7 2.2 26.4 3.7 20.6 -5.8 21.4 0.8 18.2 -3.2
BB% 6.3 7.5 1.2 7.3 -0.2 7.0 -0.3 7.2 0.2 7.7 0.5 7.2 -0.5
Swing % 45.8 47.0 1.2 47.7 0.7 47.8 0.1 48.1 0.3 48.0 -0.1 47.9 -0.1
Whiff% 20.2 22.3 2.1 22.1 -0.2 24.1 2.0 23.7 -0.4 22.5 -1.2 19.6 -2.9
In Zone % 50.2 50.3 0.1 46.1 -4.2 47.0 0.9 45.8 -1.2 48.4 2.6 46.6 -1.8
Out of Zone % 49.8 49.7 -0.1 53.9 4.2 53.0 -0.9 54.2 1.2 51.6 -2.6 53.4 1.8
Out of Zone Swing % 26.2 25.9 -0.3 29.6 3.7 28.5 -1.1 28.4 -0.1 25.6 -2.8 27.0 1.4
First Pitch Swing % 27.2 29.1 1.9 30.4 1.3 25.5 -4.9 30.5 5.0 33.7 3.2 32.5 -1.2
First Pitch Strike % 60.3 59.9 -0.4 62.0 2.1 60.9 -1.1 58.7 -2.2 65.3 6.6 61.7 -3.6
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2016 Shifts 786 .291 630 6 1.0 156 34 21.8
2017 Shifts 624 .302 506 0 0.0 118 20 16.9
2018 Shifts 732 .295 589 20 3.4 143 56 39.2
2019 Shifts 677 .329 504 103 20.4 173 100 57.8
2020 Shifts 195 .286 143 20 14.0 52 33 63.5
2021 Shifts 671 .361 529 50 9.5 142 71 50.0
! 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 %
2010 473 15.0 45.7% 1.1% 288 22.9 1.4% 10.8%
2011 830 14.2 59.9% 0.8% 518 20.1 5.0% 6.0%
2012 724 15.4 45.9% 0.6% 411 22.2 1.5% 7.3%
2013 501 15.9 35.7% 1.0% 299 23.3 0.3% 10.0%
2014 775 16.8 27.0% 0.6% 497 22.5 0.4% 8.0%
2015 870 17.4 29.0% 3.8% 420 23.1 2.9% 16.7%
2016 950 17.4 31.3% 3.8% 473 22.3 5.7% 13.5%
2017 765 16.2 35.8% 0.7% 388 22.2 1.0% 7.2%
2018 944 16.1 36.8% 0.8% 474 22.2 0.2% 4.9%
2019 865 16.7 29.7% 1.7% 388 23.5 0.0% 11.3%
2020 254 17.6 18.1% 1.2% 106 25.6 0.0% 19.8%
2021 775 17.4 23.2% 1.2% 443 23.2 0.0% 7.0%

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Pitch Distribution