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
Pitch Distribution

Statcast Statistics

Season Age Pitches Batted
Balls
Barrels Barrel % Barrel/PA Exit
Velocity
Max EV Launch
Angle
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 .209 .409 .553 53.3 27.3 4.5 1.50 7.25
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 6.9 4.7 88.4 122.4 12.2 33.1 .245 .406 .316 .315 .369 36.3 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 44.6 23.5 24.8 7.0 37.0 37.5 25.3 3.9 32.8 24.7 24.4 5.8 6.9 4.7
! Note: All figures in this table cover the period 2015-present.

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
2024 Slider MIL R 45 84.6 40.0 3.5 10 3.5 -3.5 -50
2024 Sinker MIL R 43 93.4 30.5 4.1 16 17.4 0.9 6
2023 4-Seam Fastball MIL R 2 94.2 24.9 -8.6 -52 9.9 -0.8 -7
2023 Changeup MIL R 8 88.5 35.9 3.6 11 14.5 -1.4 -9
2023 Slider MIL R 44 84.9 40.4 4.1 11 3.7 -2.0 -35
2023 Sinker MIL R 47 94.6 30.5 5.1 20 15.9 0.8 5
2021 Changeup AZ R 31 88.9 35.2 4.4 14 15.8 0.3 2
2021 Slider AZ R 120 86.1 35.4 0.7 2 3.2 -1.1 -26
2021 4-Seam Fastball AZ R 135 94.5 19.4 -3.6 -23 12.3 3.5 40
! 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 0.8 0 45 51.1 11 .000 .000 .064 57.9 36.4 25.0 .231 .492 .340 66.7
2024 Sinker 4.8 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 .300 .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 -6.4 -9 135 47.2 32 .500 .821 .579 9.8 3.1 10.0 .370 .744 .487 53.6
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
! 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 135 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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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 48.6 66.9 82.0 28.4 58.0 42.6 60.9 47.1 24.8 7.3 76.1
! 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 69 2
2024 6 11 1 1 37 19 1 2 5 72 82 96 65
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Expected Home Runs

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 1 0 1 100.0
Player 26.5 5 4.8 0 1 1 4 80.0

Expected Home Runs by Park

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 2 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 6 5 5
! Note: This tells how many of this player's home runs would have been out of other stadiums. This accounts for different wall heights, distances and 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 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
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 .209 -0.059
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 .209 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


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