Jack Kochanowicz
P | Bats/Throws: L/R | 6' 7" 228LBS | Age: 24
Draft: 2019 | Rd: 3, #92, Los Angeles Angels | Harriton HS
W L ERA G GS SV IP SO WHIP
2024 2 6 3.99 11 11 0 65.1 25 1.19
2025 3 8 5.53 14 14 0 71.2 50 1.59
2 Seasons 5 14 4.80 25 25 0 137 75 1.40
G W-L ERA IP SO WHIP
2024 11 2-6 3.99 65.1 25 1.19
2025 14 3-8 5.53 71.2 50 1.59
2 Seasons 25 5-14 4.80 137 75 1.40
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
2024 23 859 223 14 6.3 5.3 90.3 113.9 3.6 29.1 .288 .447 .323 .341 .352 44.4 9.4 3.8 4.00 4.97
2025 24 1152 229 23 10.0 7.3 92.5 116.6 8.2 25.8 .280 .457 .365 .362 .388 49.3 15.8 10.4 5.53 5.11
Player 2011 452 37 8.2 6.3 91.4 116.6 6.0 27.4 .284 .452 .346 .352 .370 46.9 12.9 7.4
MLB 7.1 4.8 88.5 122.9 12.4 33.2 .245 .405 .316 .316 .369 36.7 22.2 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Kochanowicz relies on 5 pitches.
Sinker
(47.8%) ,
Four Seamer
(18.4%) ,
Slider
(16.3%) ,
Changeup
(10.9%) ,
Sweeper
(6.5%) ,


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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 %
2024 56.5 43.5 15.2 23.3 4.9 38.6 41.3 20.2 27.8 23.8 4.9 10.8 17.5 15.2
2025 51.1 48.9 26.2 17.9 4.8 38.0 40.2 21.8 24.0 22.7 4.4 14.0 17.5 17.5
Player 53.8 46.2 20.8 20.6 4.9 38.3 40.7 21.0 25.9 23.2 4.6 12.4 17.5 16.4
MLB 44.4 55.6 23.9 24.7 7.1 37.2 37.4 25.2 20.6 17.7 5.9 16.6 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
2024 4.0 43.0 14.8 26.0 4.5 6.3 5.3
2025 1.3 38.0 20.5 24.5 5.7 10.0 7.3
Player 2.7 40.5 17.7 25.2 5.1 8.2 6.3
MLB 3.9 32.5 24.9 24.4 5.9 7.1 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
2025 Sweeper LAA R 75 82.3 43.0 3.4 13.9GLV 0.0 -2.3 3.6 13.9GLV -0.1
2025 4-Seam Fastball LAA R 212 95.7 16.0 -2.2 7.7ARM 0.4 13.9 -2.0 7.7ARM 0.0
2025 Sinker LAA R 551 95.6 27.2 5.7 14.5ARM -0.7 2.8 4.5 14.5ARM -0.8
2025 Changeup LAA R 126 89.5 30.1 -0.3 7.7ARM -7.2 4.0 0.1 7.7ARM -7.1
2025 Slider LAA R 188 87.3 36.1 2.3 3.2GLV -0.9 0.0 1.7 3.2GLV -1.7
2024 Sweeper LAA R 37 83.7 41.9 3.9 14.2GLV 0.8 -2.8 4.3 14.2GLV 0.1
2024 4-Seam Fastball LAA R 52 96.2 16.2 -2.8 9.3ARM 2.0 13.3 -2.4 9.3ARM 1.7
2024 Slider LAA R 121 85.4 37.8 1.8 7.2GLV 2.3 -0.3 1.9 7.2GLV 2.3
2024 Sinker LAA R 624 95.8 27.0 6.0 15.4ARM 0.4 2.7 4.5 15.4ARM 0.5
2024 Changeup LAA R 25 88.2 31.6 1.6 11.2ARM -3.1 3.5 1.4 11.2ARM -3.0
! 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 %
2025 Sinker -0.6 -3 551 47.8 174 .307 .444 .370 15.1 8.6 12.8 .287 .411 .349 51.1
2025 4-Seam Fastball -0.4 -1 212 18.4 57 .208 .375 .319 23.1 28.1 20.0 .248 .502 .376 59.4
2025 Slider -2.4 -4 188 16.3 31 .423 .654 .481 30.4 12.9 13.8 .375 .614 .445 34.8
2025 Changeup -1.4 -2 126 10.9 35 .273 .545 .366 25.7 31.4 19.3 .240 .499 .333 54.5
2025 Sweeper -0.8 -1 75 6.5 18 .267 .333 .336 27.6 22.2 17.4 .241 .414 .351 18.2
2024 Sinker 0.1 1 624 72.6 205 .290 .430 .353 12.0 4.9 8.0 .302 .461 .349 44.6
2024 Slider 0.3 0 121 14.1 33 .241 .345 .309 27.0 24.2 24.2 .240 .337 .305 38.1
2024 4-Seam Fastball 1.3 1 52 6.1 13 .083 .167 .150 36.4 46.2 25.0 .111 .258 .196 50.0
2024 Sweeper -2.9 -1 37 4.3 6 .200 .800 .450 15.4 0.0 0.0 .365 .984 .579 20.0
2024 Changeup -4.5 -1 25 2.9 8 .375 .500 .436 7.1 12.5 6.7 .345 .457 .347 71.4
! 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
2025 Changeup 124 89.5 65 9.0 1:45 2:15 -30
2025 4-Seam Fastball 204 95.6 82 15.5 1:30 1:00 30
2025 Sinker 529 95.6 77 15.4 1:30 2:45 -75
2025 Slider 188 87.3 17 4.3 8:00 8:00 0
2025 Sweeper 75 82.3 48 15.5 7:30 8:30 -60
2024 Changeup 24 88.3 64 12.1 1:45 2:45 -60
2024 4-Seam Fastball 52 96.2 86 16.0 1:30 1:15 15
2024 Sinker 585 95.8 82 16.3 1:45 2:45 -60
2024 Slider 121 85.4 30 8.1 7:45 8:30 -45
2024 Sweeper 37 83.7 42 15.6 7:30 8:30 -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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Statcast Pitching Run Value

Runs
Year Team PA Pitches Heart Shadow Chase Waste All
2024 265 859 7 2 -5 -5 -1
2025 315 1,152 -2 7 -10 -6 -11
Player 580 2,011 5 9 -15 5 -11
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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 %
2024 859 57.0 72.7 88.5 28.5 71.4 40.9 61.3 53.7 15.2 10.2 80.7
2025 1,152 49.3 69.9 88.4 27.9 57.7 42.6 60.3 48.6 20.5 7.9 79.1
Player 2,011 52.6 71.2 88.4 28.1 63.1 41.9 60.7 50.8 18.1 8.9 79.9
MLB 48.8 67.0 82.1 28.4 57.6 42.6 61.1 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
2024 10 3 12 36 16 61 76 14 9 1 98 1 48 78 10 48
2025 12 14 23 35 8 6 26 2 6 9 25 16 47 74 23 46
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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 %
2024 23.52 7 6.2 1 5 4 3 42.9
2025 24.01 13 10.9 2 6 6 6 46.2
Player 23.84 20 17.1 3 11 10 9 45.0
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
2024 7 3 6 6 7 6 7 6 6 5 6 9 8 6 6 6 5 5 7 7 6 6 7 6 6 5 7 7 7 6 6
2025 13 11 9 11 12 11 9 10 7 9 10 9 16 14 11 10 12 11 10 11 11 10 12 13 11 10 9 12 15 10 11
Player 20 14 15 17 19 17 16 16 13 14 16 18 24 20 17 16 17 16 17 18 17 16 19 19 17 15 16 19 22 16 17
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 2024 +/-   2025
Fastball Velocity 95.8 -0.2 95.6
Offspeed Velocity 88.2 1.3 89.5
Breaking Velocity 85.0 0.9 85.9
Exit Velocity 90.3 2.2 92.5
Launch Angle 3.6 4.6 8.2
Barrel % 6.3 3.7 10.0
Hard Hit % 44.4 4.9 49.3
LA Sweet-Spot % 29.1 -3.3 25.8
xBA .288 -0.008 .280
BA .275 0.020 .295
xwOBA .341 0.021 .362
wOBA .323 0.042 .365
xSLG .447 0.010 .457
SLG .417 0.041 .458
K% 9.4 6.4 15.8
BB% 3.8 6.6 10.4
Swing % 53.7 -5.1 48.6
Whiff% 15.2 5.3 20.5
In Zone % 57.0 -7.7 49.3
Out of Zone % 43.0 7.7 50.7
Out of Zone Swing % 28.5 -0.6 27.9
First Pitch Swing % 33.1 0.0 33.1
First Pitch Strike % 61.3 -1.0 60.3
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2024 Shades 265 .323 109 39 35.8 156 103 66.0
2025 Shades 315 .365 128 54 42.2 187 153 81.8
! 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 %
2024 219 16.1 24.7% 0.5% 128 19.1 0.0% 0.0%
2025 316 16.3 20.6% 0.0% 172 18.6 0.0% 0.0%

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Pitch Distribution