Jack Flaherty
P | Bats/Throws: R/R | 6' 4" 225LBS | Age: 29
Draft: 2014 | Rd: 1, #34, St. Louis Cardinals | Harvard-Westlake (CA) HS
W L ERA G GS SV IP SO WHIP
2022 2 1 4.25 9 8 0 36 33 1.61
2023 8 9 4.99 29 27 0 144.1 148 1.58
2024 13 7 3.17 28 28 0 162 194 1.07
8 Seasons 55 41 3.63 159 153 0 829.2 942 1.18
G W-L ERA IP SO WHIP
2022 9 2-1 4.25 36 33 1.61
2023 29 8-9 4.99 144.1 148 1.58
2024 28 13-7 3.17 162 194 1.07
8 Seasons 159 55-41 3.63 829.2 942 1.18
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
2017 21 358 63 4 6.3 4.3 84.3 109.3 9.5 41.3 .253 .435 .354 .334 .383 22.6 21.3 10.6 6.33 4.86
2018 22 2587 363 24 6.6 3.9 86.9 110.8 15.6 30.9 .203 .325 .281 .279 .343 34.7 29.6 9.6 3.34 3.25
2019 23 3179 479 33 6.9 4.3 86.6 116.3 15.5 33.4 .215 .366 .254 .279 .362 30.3 29.9 7.1 2.75 3.38
2020 24 719 102 7 6.9 4.1 87.7 110.4 9.3 37.3 .262 .432 .299 .341 .438 32.4 28.8 9.4 4.91 5.03
2021 25 1353 205 19 9.3 5.9 89.8 113.2 13.4 38.0 .244 .456 .280 .337 .423 41.5 26.4 8.1 3.22 4.89
2022 26 662 107 6 5.6 3.6 87.2 111.4 11.8 38.3 .242 .390 .358 .341 .357 30.8 19.8 13.2 4.25 4.94
2023 27 2634 423 31 7.3 4.8 87.9 113.0 11.7 38.5 .270 .421 .356 .343 .398 38.3 22.8 10.2 4.99 5.06
2024 28 2646 413 32 7.7 4.9 88.4 117.5 14.0 36.1 .233 .380 .288 .292 .392 35.9 29.9 5.9 3.17 3.54
Player 14138 2155 156 7.2 4.5 87.6 117.5 13.6 35.6 .234 .386 .297 .307 .381 34.6 27.4 8.5
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

Flaherty relies on 5 pitches.
Four Seamer
(44.3%) ,
Slider
(29.0%) ,
Knuckle Curve
(21.8%) ,
Changeup
(2.7%) ,
Sinker
(2.1%) ,


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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
2017 49.2 25.4 25.4 0.0 33.3 49.2 17.5 6.3 41.3 20.6 20.6 3.2 6.3 4.3
2018 43.3 23.4 23.7 9.6 43.0 34.7 22.3 4.7 32.0 27.8 23.7 4.1 6.6 3.9
2019 40.7 23.0 24.6 11.7 37.8 35.1 27.1 4.6 30.5 27.3 23.6 6.3 6.9 4.3
2020 45.1 16.7 32.4 5.9 33.3 43.1 23.5 5.9 33.3 14.7 30.4 8.8 6.9 4.1
2021 40.0 28.3 25.9 5.9 37.1 36.6 26.3 4.9 29.8 22.9 23.4 9.8 9.3 5.9
2022 44.9 23.4 27.1 4.7 47.7 32.7 19.6 6.5 34.6 22.4 22.4 8.4 5.6 3.6
2023 43.0 24.3 27.9 4.7 43.7 31.4 24.8 5.4 30.5 20.8 29.3 6.6 7.3 4.8
2024 40.2 26.9 27.1 5.8 41.9 34.9 23.2 3.9 27.6 25.7 27.1 4.8 7.7 4.9
Player 42.1 24.4 26.2 7.3 40.7 35.1 24.2 4.9 30.8 24.4 25.6 6.2 7.2 4.5
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 Slider LAD R 746 84.7 35.9 -0.7 6.7GLV 1.2 2.1 -0.5 6.7GLV 1.6
2024 Curveball LAD R 560 77.4 54.5 -0.3 13.3GLV 1.3 -8.6 -1.3 13.3GLV 3.9
2024 Changeup LAD R 70 85.7 32.1 -1.2 12.1ARM -2.3 5.0 -0.1 12.1ARM -2.1
2024 4-Seam Fastball LAD R 1138 93.3 16.0 0.1 4.2ARM -3.9 15.4 -0.4 4.2ARM -3.3
2024 Sinker LAD R 55 90.4 25.1 -1.0 11.7ARM -3.6 8.2 -0.9 11.7ARM -3.1
2023 Slider BAL R 652 84.3 37.3 0.2 7.2GLV 1.6 1.2 0.3 7.2GLV 1.9
2023 Curveball BAL R 512 76.2 56.7 -0.5 14.2GLV 2.7 -9.2 -0.7 14.2GLV 5.3
2023 Changeup BAL R 84 85.3 31.7 -1.4 11.9ARM -2.5 5.7 -0.3 11.9ARM -2.5
2023 Cutter BAL R 233 88.7 28.6 -1.3 4.8GLV 2.2 6.0 -1.9 4.8GLV 2.2
2023 Sinker BAL R 54 89.9 25.4 -1.1 10.5ARM -4.7 8.3 -0.7 10.5ARM -4.5
2023 4-Seam Fastball BAL R 1098 93.1 18.0 -1.7 2.2ARM -5.6 13.4 -2.4 2.2ARM -5.2
! 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 0.4 5 1,138 43.0 293 .245 .401 .311 23.8 28.7 25.1 .254 .439 .328 39.8
2024 Slider 0.1 1 746 28.2 192 .222 .455 .331 36.3 27.1 20.8 .218 .378 .289 36.8
2024 Curveball 2.1 12 560 21.2 130 .164 .219 .175 43.6 40.0 27.1 .208 .262 .214 25.0
2024 Changeup -0.5 0 70 2.6 9 .111 .333 .178 11.1 0.0 0.0 .222 .287 .219 22.2
2024 Sinker -5.1 -3 55 2.1 6 .600 1.200 .750 40.0 0.0 0.0 .608 .955 .676 60.0
2023 4-Seam Fastball -0.5 -5 1,098 41.7 265 .290 .411 .364 20.8 25.7 20.4 .247 .382 .334 38.6
2023 Slider -0.8 -5 652 24.8 187 .339 .558 .410 26.6 15.0 14.7 .326 .521 .393 43.6
2023 Curveball 0.1 1 512 19.4 125 .204 .372 .282 40.2 33.6 21.8 .221 .325 .274 29.2
2023 Cutter -0.2 0 233 8.8 51 .318 .545 .415 26.0 17.6 25.7 .296 .520 .395 42.9
2023 Changeup -0.5 0 84 3.2 13 .154 .154 .208 8.3 7.7 12.5 .203 .226 .190 8.3
2023 Sinker -3.9 -2 54 2.1 7 .333 .333 .357 10.0 0.0 0.0 .488 .595 .506 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
2024 Changeup 65 85.8 82 13.4 1:30 2:30 -60
2024 Curveball 536 77.4 79 17.7 7:45 7:45 0
2024 4-Seam Fastball 1,100 93.3 83 15.4 12:45 12:30 15
2024 Sinker 54 90.4 75 14.2 12:45 2:00 -75
2024 Slider 711 84.8 44 7.3 10:00 9:15 45
2023 Changeup 82 85.3 83 13.4 1:15 2:15 -60
2023 Curveball 512 76.2 82 19.2 8:00 7:45 15
2023 Cutter 233 88.7 50 7.5 11:30 10:30 60
2023 4-Seam Fastball 1,096 93.1 72 13.1 12:45 12:15 30
2023 Sinker 53 89.9 70 13.3 12:45 1:45 -60
2023 Slider 651 84.3 51 7.9 9:30 9:00 30
! 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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Statcast Pitching Run Value

Runs
Year Team PA Pitches Heart Shadow Chase Waste All
2017 92 356 2 0 -3 -3 -3
2018 612 2,586 19 21 -16 -10 14
2019 842 3,478 29 37 -11 -15 40
2020 196 829 4 6 -6 -3 1
2021 321 1,353 8 15 -10 -7 7
2022 167 662 2 6 -4 -6 -2
2023 658 2,679 1 26 -23 -18 -13
2024 728 2,957 -2 29 -12 -9 6
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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 %
2017 358 49.7 72.9 76.0 25.7 50.0 39.0 63.8 49.2 29.5 8.1 69.0
2018 2,587 47.7 66.9 76.7 27.9 47.4 42.0 57.2 46.5 31.5 7.0 79.0
2019 3,179 48.3 67.5 77.6 29.8 50.3 44.1 60.4 48.0 30.7 6.5 74.5
2020 719 46.3 67.9 77.9 25.1 36.1 40.9 61.8 44.9 34.4 7.2 73.1
2021 1,353 48.3 67.1 81.1 24.0 47.6 42.1 58.9 44.8 28.1 6.8 83.7
2022 662 46.7 68.6 80.2 22.1 53.8 40.3 54.5 43.8 25.9 7.6 88.0
2023 2,634 46.4 65.5 80.9 25.3 55.3 42.2 58.9 44.0 26.6 6.9 72.9
2024 2,646 45.8 65.0 78.8 30.7 48.0 44.1 61.2 46.2 32.1 6.4 78.7
Player 14,138 47.2 66.7 78.7 27.5 49.4 42.7 59.4 46.0 30.1 6.8 77.1
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
2017 51 39 98
2018 82 86 86 82 68 29 45 85 55 87 27 86 48 45 29 43 98
2019 84 80 76 68 87 16 52 93 91 85 65 81 58 60 33 47 94
2020 27 28 35 42 25 38 53 61 79 76 41 88 24 54 31 33 83
2021 22 42 19 9 38 45 22 25 27 68 52 65 10 45 50 40 85
2022 36 56 35 91
2023 19 16 35 60 9 22 61 73 56 44 23 55 12 32 66 54 82
2024 70 58 57 54 81 21 49 62 74 90 83 91 72 35 50 37 67
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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 %
2017 21.8 4 2.4 2 1 1 2 50.0
2018 22.8 20 18.1 2 5 13 7 35.0
2019 23.2 27 25.7 1 12 18 11 40.7
2020 23.2 6 5.6 0 2 3 3 50.0
2021 23.7 12 12.7 -1 6 6 8 66.7
2022 25.4 4 3.4 1 1 2 2 50.0
2023 23.5 17 19.9 -3 12 17 5 29.4
2024 24.5 30 29.0 1 8 25 10 33.3
Player 23.6 120 116.8 3 47 85 48 40.0
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
2017 4 3 2 2 2 2 3 3 2 2 2 2 3 3 3 2 2 2 3 2 3 2 3 2 3 4 2 2 3 2 2
2018 20 23 13 17 20 18 20 18 17 14 20 22 17 16 18 18 16 19 16 22 17 19 24 19 16 14 20 21 18 18 14
2019 27 30 21 28 26 26 29 27 19 20 23 27 31 24 26 25 24 23 25 27 26 29 29 26 25 24 24 31 31 24 20
2020 6 6 5 7 6 6 6 6 3 4 4 5 6 6 6 5 6 6 6 6 6 6 6 6 6 5 5 5 6 6 5
2021 12 14 11 16 13 13 14 14 13 9 12 14 10 10 14 14 10 12 14 13 11 12 17 13 10 12 14 14 11 12 14
2022 4 4 2 5 3 3 4 4 3 2 2 3 4 3 4 4 4 4 3 3 3 3 5 4 3 4 4 4 4 3 2
2023 17 16 16 20 23 20 22 20 21 14 20 22 18 16 22 21 23 18 23 25 17 24 28 25 15 14 22 20 20 19 13
2024 30 28 26 33 26 32 32 31 24 24 26 37 31 26 29 30 27 25 30 36 27 27 38 30 26 27 28 30 30 29 26
Player 120 124 96 128 119 120 130 123 102 89 109 132 120 104 122 119 112 109 120 134 110 122 150 125 104 104 119 127 123 113 96
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 2017 2018 +/-   2019 +/-   2020 +/-   2021 +/-   2022 +/-   2023 +/-   2024 +/-  
Fastball Velocity 93.0 92.6 -0.4 ↓ 93.8 1.2 ↑ 93.6 -0.2 ↓ 93.3 -0.3 ↓ 92.8 -0.5 ↓ 92.3 -0.5 ↓ 93.2 0.9 ↑
Offspeed Velocity 87.4 85.3 -2.1 ↓ 86.2 0.9 ↑ 85.7 -0.5 ↓ 84.5 -1.2 ↓ 87.7 3.2 ↑ 85.3 -2.4 ↓ 85.7 0.4 ↑
Breaking Velocity 82.1 81.9 -0.2 ↓ 82.7 0.8 ↑ 82.1 -0.6 ↓ 81.3 -0.8 ↓ 81.2 -0.1 ↓ 80.7 -0.5 ↓ 81.6 0.9 ↑
Exit Velocity 84.3 86.9 2.6 ↑ 86.6 -0.3 ↓ 87.7 1.1 ↑ 89.8 2.1 ↑ 87.2 -2.6 ↓ 87.9 0.7 ↑ 88.4 0.5 ↑
Launch Angle 9.5 15.6 6.1 ↑ 15.5 -0.1 ↓ 9.3 -6.2 ↓ 13.4 4.1 ↑ 11.8 -1.6 ↓ 11.7 -0.1 ↓ 14.0 2.3 ↑
Barrel % 6.3 6.6 0.3 ↑ 6.9 0.3 ↑ 6.9 0.0 9.3 2.4 ↑ 5.6 -3.7 ↓ 7.3 1.7 ↑ 7.7 0.4 ↑
Hard Hit % 22.6 34.7 12.1 ↑ 30.3 -4.4 ↓ 32.4 2.1 ↑ 41.5 9.1 ↑ 30.8 -10.7 ↓ 38.3 7.5 ↑ 35.9 -2.4 ↓
LA Sweet-Spot % 41.3 30.9 -10.4 ↓ 33.4 2.5 ↑ 37.3 3.9 ↑ 38.0 0.7 ↑ 38.3 0.3 ↑ 38.5 0.2 ↑ 36.1 -2.4 ↓
xBA .253 .203 -0.050 ↓ .215 0.012 ↑ .262 0.047 ↑ .244 -0.018 ↓ .242 -0.002 ↓ .270 0.028 ↑ .233 -0.037 ↓
BA .284 .199 -0.085 ↓ .192 -0.007 ↓ .221 0.029 ↑ .199 -0.022 ↓ .259 0.060 ↑ .287 0.028 ↑ .223 -0.064 ↓
xwOBA .334 .279 -0.055 ↓ .279 0.000 .341 0.062 ↑ .337 -0.004 ↓ .341 0.004 ↑ .343 0.002 ↑ .292 -0.051 ↓
wOBA .354 .281 -0.073 ↓ .254 -0.027 ↓ .299 0.045 ↑ .280 -0.019 ↓ .358 0.078 ↑ .356 -0.002 ↓ .288 -0.068 ↓
xSLG .435 .325 -0.110 ↓ .366 0.041 ↑ .432 0.066 ↑ .456 0.024 ↑ .390 -0.066 ↓ .421 0.031 ↑ .380 -0.041 ↓
SLG .481 .345 -0.136 ↓ .335 -0.010 ↓ .369 0.034 ↑ .364 -0.005 ↓ .424 0.060 ↑ .450 0.026 ↑ .388 -0.062 ↓
K% 21.3 29.6 8.3 ↑ 29.9 0.3 ↑ 28.8 -1.1 ↓ 26.4 -2.4 ↓ 19.8 -6.6 ↓ 22.8 3.0 ↑ 29.9 7.1 ↑
BB% 10.6 9.6 -1.0 ↓ 7.1 -2.5 ↓ 9.4 2.3 ↑ 8.1 -1.3 ↓ 13.2 5.1 ↑ 10.2 -3.0 ↓ 5.9 -4.3 ↓
Swing % 49.2 46.5 -2.7 ↓ 48.0 1.5 ↑ 44.9 -3.1 ↓ 44.8 -0.1 ↓ 43.8 -1.0 ↓ 44.0 0.2 ↑ 46.2 2.2 ↑
Whiff% 29.5 31.5 2.0 ↑ 30.7 -0.8 ↓ 34.4 3.7 ↑ 28.1 -6.3 ↓ 25.9 -2.2 ↓ 26.6 0.7 ↑ 32.1 5.5 ↑
In Zone % 49.7 47.7 -2.0 ↓ 48.3 0.6 ↑ 46.3 -2.0 ↓ 48.3 2.0 ↑ 46.7 -1.6 ↓ 46.4 -0.3 ↓ 45.8 -0.6 ↓
Out of Zone % 50.3 52.3 2.0 ↑ 51.7 -0.6 ↓ 53.7 2.0 ↑ 51.7 -2.0 ↓ 53.3 1.6 ↑ 53.6 0.3 ↑ 54.2 0.6 ↑
Out of Zone Swing % 25.7 27.9 2.2 ↑ 29.8 1.9 ↑ 25.1 -4.7 ↓ 24.0 -1.1 ↓ 22.1 -1.9 ↓ 25.3 3.2 ↑ 30.7 5.4 ↑
First Pitch Swing % 33.0 27.2 -5.8 ↓ 30.6 3.4 ↑ 27.6 -3.0 ↓ 29.9 2.3 ↑ 29.3 -0.6 ↓ 25.2 -4.1 ↓ 28.5 3.3 ↑
First Pitch Strike % 63.8 57.2 -6.6 ↓ 60.4 3.2 ↑ 61.8 1.4 ↑ 58.9 -2.9 ↓ 54.5 -4.4 ↓ 58.9 4.4 ↑ 61.2 2.3 ↑
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2017 Shifts 93 .354 48 0 0.0 45 3 6.7
2018 Shifts 612 .281 303 5 1.7 309 40 12.9
2019 Shifts 770 .254 383 8 2.1 387 149 38.5
2020 Shifts 170 .299 76 6 7.9 94 27 28.7
2021 Shifts 321 .280 155 15 9.7 166 74 44.6
2022 Shifts 167 .358 71 6 8.5 96 42 43.8
2023 Shades 647 .356 305 8 2.6 342 141 41.2
2024 Shades 629 .284 284 21 7.4 345 211 61.2
! 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 %
2017 90 15.4 43.3% 0.0% 62 24.0 0.0% 6.5%
2018 860 16.9 24.7% 1.6% 335 25.3 0.0% 18.5%
2019 1041 17.2 23.0% 1.2% 391 25.6 0.3% 18.7%
2020 226 16.8 25.2% 0.0% 117 24.8 0.0% 13.7%
2021 448 17.9 15.6% 1.8% 191 26.0 0.0% 18.8%
2022 174 17.5 19.0% 2.9% 141 24.0 0.0% 12.8%
2023 699 15.5 40.5% 0.0% 516 20.4 0.0% 0.4%
2024 810 15.0 49.9% 0.1% 334 18.2 2.7% 0.0%

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Pitch Distribution

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