J.B. Bukauskas
P | Bats/Throws: R/R | 6' 0" 208LBS | Age: 27
Draft: 2017 | Rd: 1, #15, Houston Astros | North Carolina
W L ERA G GS SV IP SO WHIP
2021 2 2 7.79 21 0 0 17.1 14 1.79
2023 0 0 1.29 6 0 0 7 7 1.29
2024 0 0 1.50 6 0 0 6 6 0.67
3 Seasons 2 2 5.04 33 0 0 30.1 27 1.45
G W-L ERA IP SO WHIP
2021 21 2-2 7.79 17.1 14 1.79
2023 6 0-0 1.29 7 7 1.29
2024 6 0-0 1.50 6 6 0.67
3 Seasons 33 2-2 5.04 30.1 27 1.45
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
2021 24 286 60 7 11.7 8.6 89.9 108.3 9.8 36.7 .271 .507 .404 .358 .409 38.3 17.3 8.6 7.79 5.62
2023 26 101 19 0 0.0 0.0 89.6 111.9 -6.9 26.3 .254 .300 .268 .289 .332 36.8 23.3 10.0 1.29 3.48
2024 27 88 15 4 26.7 18.2 94.2 112.3 10.9 40.0 .308 .639 .205 .409 .553 53.3 27.3 4.5 1.50 7.53
Player 475 94 11 11.7 8.3 90.5 112.3 6.7 35.1 .274 .487 .340 .352 .417 40.4 20.3 8.3
MLB 7.0 4.8 88.5 122.4 12.3 33.2 .245 .406 .316 .315 .369 36.5 22.2 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Bukauskas relies on 2 pitches.
Slider
(51.1%) ,
Sinker
(48.9%) ,


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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
2021 50.0 25.0 23.3 1.7 45.0 26.7 28.3 3.3 40.0 18.3 20.0 6.7 11.7 8.6
2023 78.9 0.0 21.1 0.0 31.6 47.4 21.1 0.0 63.2 5.3 21.1 5.3 0.0 0.0
2024 46.7 26.7 26.7 0.0 40.0 53.3 6.7 0.0 26.7 20.0 26.7 0.0 26.7 18.2
Player 55.3 20.2 23.4 1.1 41.5 35.1 23.4 2.1 42.6 16.0 21.3 5.3 11.7 8.3
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
2024 Slider MIL R 45 84.6 40.0 2.9 3.5GLV -2.9 -1.9 3.5 3.5GLV -1.7
2024 Sinker MIL R 43 93.4 30.5 4.4 17.4ARM 1.4 1.1 6.2 17.4ARM 2.6
2023 Changeup MIL R 8 88.5 35.9 3.6 14.5ARM -1.4 -0.8 6.2 14.5ARM 0.1
2023 4-Seam Fastball MIL R 2 94.2 24.9 -8.6 9.9ARM -0.8 5.8 -10.0 9.9ARM 2.5
2023 Sinker MIL R 47 94.6 30.5 5.0 15.9ARM 0.7 0.2 7.4 15.9ARM 0.9
2023 Slider MIL R 44 84.9 40.4 4.0 3.7GLV -1.4 -2.6 4.1 3.7GLV -1.7
2021 Sinker AZ R 6 94.4 20.5 -2.9 12.8ARM -2.6 10.3 -1.5 12.8ARM -1.9
2021 4-Seam Fastball AZ R 129 94.5 19.3 -3.6 12.3ARM 3.5 11.4 -4.8 12.3ARM 5.1
2021 Slider AZ R 120 86.1 35.4 0.7 3.2GLV -1.1 1.4 0.4 3.2GLV -2.5
2021 Changeup AZ R 31 88.9 35.2 4.4 15.8ARM 0.3 -0.5 6.8 15.8ARM 1.9
! 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 %
2024 Slider 1.1 0 45 51.1 11 .000 .000 .064 57.9 36.4 25.0 .231 .492 .340 66.7
2024 Sinker 4.2 2 43 48.9 11 .273 .545 .345 19.0 18.2 33.3 .379 .772 .479 44.4
2023 Sinker 5.1 2 47 46.5 17 .235 .294 .247 18.5 11.8 28.6 .301 .359 .284 40.0
2023 Slider 0.2 0 44 43.6 9 .286 .286 .356 36.8 44.4 20.0 .193 .225 .295 0.0
2023 Changeup -0.2 0 8 7.9 2 .000 .000 .350 66.7 0.0 0.0 .194 .194 .440 100.0
2023 4-Seam Fastball -11.9 0 2 2.0 -- -- -- -- -- 0.0 -- -- -- --
2021 4-Seam Fastball -6.5 -8 129 45.1 30 .500 .808 .576 10.2 3.3 10.0 .371 .743 .489 53.8
2021 Slider -0.6 -1 120 42.0 39 .171 .429 .299 43.3 33.3 26.0 .176 .352 .266 21.7
2021 Changeup -6.6 -2 31 10.8 9 .444 .444 .400 0.0 0.0 0.0 .335 .376 .314 33.3
2021 Sinker -3.8 0 6 2.1 2 .500 1.000 .625 0.0 0.0 -- .347 .759 .461 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.
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Spin Direction

Year Pitch Type Pitches MPH Active Spin % Total Movement (In.) Spin-Based Observed Deviation
2024 Sinker 38 93.4 77 18.3 2:00 3:00 -60
2024 Slider 45 84.6 26 5.4 9:00 7:30 90
2023 Sinker 40 94.6 77 16.7 1:45 3:00 -75
2023 Slider 41 85.0 30 6.1 8:45 7:15 90
2021 Changeup 29 88.8 87 16.9 2:15 3:15 -60
2021 4-Seam Fastball 129 94.5 85 16.7 1:45 1:45 0
2021 Slider 120 86.1 21 3.9 10:00 9:00 60
! 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
2021 80 286 -11 -1 1 0 -11
2023 28 101 1 2 0 -1 2
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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 %
2021 286 47.9 67.2 90.2 31.5 42.6 39.9 63.0 48.6 25.2 5.9 76.5
2023 101 46.5 66.0 83.9 33.3 50.0 40.6 66.7 48.5 28.6 7.9 75.0
2024 88 46.6 63.4 80.8 29.8 28.6 44.3 68.2 45.5 37.5 6.8 83.3
Player 475 47.4 66.2 87.2 31.6 41.8 40.8 64.7 48.0 28.1 6.5 77.4
MLB 48.7 67.0 82.0 28.5 57.8 42.6 61.0 47.2 24.9 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
2021 68 70 2
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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 %
2021 25.1 4 3.8 0 0 1 3 75.0
2024 30.7 1 1.0 0 0 0 1 100.0
Player 26.5 5 4.8 0 0 1 4 80.0
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
2021 4 4 3 3 3 4 4 4 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
2024 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Player 5 5 4 4 4 5 5 5 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
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 2023 2024 +/-  
Fastball Velocity 94.6 93.4 -1.2
Offspeed Velocity 88.5 0.0 0.0
Breaking Velocity 84.9 84.6 -0.3
Exit Velocity 89.6 94.2 4.6
Launch Angle -6.9 10.9 17.8
Barrel % 0.0 26.7 26.7
Hard Hit % 36.8 53.3 16.5
LA Sweet-Spot % 26.3 40.0 13.7
xBA .254 .308 0.054
BA .231 .143 -0.088
xwOBA .289 .409 0.120
wOBA .268 .205 -0.063
xSLG .300 .639 0.339
SLG .269 .286 0.017
K% 23.3 27.3 4.0
BB% 10.0 4.5 -5.5
Swing % 48.5 45.5 -3.0
Whiff% 28.6 37.5 8.9
In Zone % 46.5 46.6 0.1
Out of Zone % 53.5 53.4 -0.1
Out of Zone Swing % 33.3 29.8 -3.5
First Pitch Swing % 36.7 36.4 -0.3
First Pitch Strike % 66.7 68.2 1.5
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2021 Shifts 80 .404 46 12 26.1 34 18 52.9
2023 Shades 28 .278 14 0 0.0 14 0 0.0
2024 Shades 22 .205 14 0 0.0 8 3 37.5
! 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 %
2021 73 21.4 0.0% 4.1% 56 24.6 0.0% 8.9%
2023 21 17.4 14.3% 4.8% 18 19.0 0.0% 0.0%
2024 28 17.4 0.0% 0.0% 11 19.8 0.0% 0.0%

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Pitch Distribution