P | Cincinnati Reds
Bats/Throws: R/L | 6' 6" 210 lbs | Age: 28
Draft: 2019 | Rd. 2, No. 59, Seattle Mariners | TCU
W L ERA G GS SV IP SO WHIP
2023 5 5 4.46 23 23 0 117 98 1.28
2024 0 0 3.77 4 3 0 14.1 12 1.05
2026 4 4 5.62 9 7 0 41.2 30 1.56
3 Seasons 9 9 4.68 36 33 0 173 140 1.33
G W-L ERA IP SO WHIP
2023 23 5-5 4.46 117 98 1.28
2024 4 0-0 3.77 14.1 12 1.05
2026 9 4-4 5.62 41.2 30 1.56
3 Seasons 36 9-9 4.68 173 140 1.33
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Pitch Usage
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
2023 25 1939 352 29 8.2 5.9 90.1 111.7 17.2 35.8 .260 .449 .321 .334 .385 41.2 20.0 7.9 4.46 4.77
2024 26 256 40 3 7.7 5.1 90.0 106.8 19.9 45.0 .237 .434 .318 .337 .376 42.5 20.3 8.5 3.77 4.71
2026 28 738 127 12 9.4 6.4 88.4 112.6 14.7 34.6 .269 .478 .353 .378 .390 42.5 16.0 14.4 5.62 6.37
Player 2933 519 44 8.5 6.0 89.7 112.6 16.8 36.2 .260 .455 .329 .345 .386 41.6 19.0 9.6
MLB 7.6 4.9 88.6 122.9 12.6 33.3 .244 .407 .316 .316 .368 37.1 22.2 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Williamson relies on 6 pitches.
Cutter
(31.8%) ,
Changeup
(22.1%) ,
Four Seamer
(19.1%) ,
Sweeper
(10.8%) ,
Curveball
(8.4%) ,
Sinker
(7.7%) ,


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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 %
2023 37.8 62.2 28.4 25.6 8.2 37.2 34.4 28.4 20.2 13.6 4.0 17.0 20.7 24.4
2024 32.5 67.5 30.0 30.0 7.5 35.0 37.5 27.5 22.5 5.0 5.0 12.5 32.5 22.5
2026 38.6 61.4 29.1 22.8 9.4 38.6 40.2 21.3 15.0 18.9 4.7 23.6 21.3 16.5
Player 37.6 62.4 28.7 25.2 8.5 37.4 36.0 26.6 19.1 14.3 4.2 18.3 21.8 22.4
MLB 44.1 55.9 24.3 24.6 7.1 37.5 37.3 25.0 20.7 17.5 5.8 16.9 19.8 19.2
! Note: All figures in this table cover the period 2015-present.

Quality of Contact

Season Weak % Topped % Under % Flare/Burner % Solid % Barrel % Barrel/PA
2023 3.4 27.3 29.0 25.0 7.1 8.2 5.9
2024 5.0 22.5 25.0 25.0 12.5 7.7 5.1
2026 4.7 29.9 26.8 23.6 5.5 9.4 6.4
Player 3.9 27.6 28.1 24.7 7.1 8.5 6.0
MLB 4.1 32.2 25.0 24.4 5.9 7.6 4.9
! 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
2026 Changeup CIN L 163 85.3 31.3 0.7 16.4ARM 2.9 6.6 -1.8 16.4ARM 2.5
2026 Sweeper CIN L 80 81.2 40.1 -2.3 13.9GLV 0.1 1.7 -1.1 13.9GLV 0.2
2026 4-Seam Fastball CIN L 141 92.7 15.0 -0.3 8.6ARM 2.4 17.1 1.6 8.6ARM 0.7
2026 Curveball CIN L 62 75.1 60.6 -1.0 12.4GLV 3.4 -11.4 1.3 12.4GLV 4.3
2026 Cutter CIN L 235 89.2 24.7 1.3 2.6GLV -0.4 9.5 1.9 2.6GLV 0.7
2026 Sinker CIN L 57 92.8 17.5 -4.5 13.3ARM -0.8 14.4 -6.8 13.3ARM -2.0
2024 Changeup CIN L 56 83.9 33.3 2.8 15.8ARM 2.3 5.5 0.4 15.8ARM 1.7
2024 Sweeper CIN L 1 82.2 38.0 -5.7 10.7GLV -4.0 2.6 -1.6 10.7GLV -3.3
2024 4-Seam Fastball CIN L 66 92.6 15.8 -1.2 9.4ARM 2.7 16.2 0.5 9.4ARM 1.3
2024 Curveball CIN L 18 75.7 57.7 -2.6 10.4GLV 2.0 -9.9 1.2 10.4GLV 3.5
2024 Cutter CIN L 115 90.1 23.9 1.3 2.1GLV -0.4 9.5 2.4 2.1GLV 0.1
! 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 %
2026 Cutter 1.2 3 235 31.8 64 .235 .314 .337 23.1 20.3 28.3 .208 .367 .328 46.2
2026 Changeup -2.0 -3 163 22.1 36 .314 .514 .365 34.2 13.9 11.9 .300 .496 .350 43.3
2026 4-Seam Fastball -5.0 -7 141 19.1 37 .333 .792 .530 10.2 2.7 2.5 .402 .776 .556 37.5
2026 Sweeper 3.3 3 80 10.8 26 .042 .042 .123 44.2 42.3 29.7 .159 .252 .216 23.1
2026 Curveball 1.4 1 62 8.4 9 .000 .000 .078 5.9 0.0 0.0 .199 .348 .286 12.5
2026 Sinker -6.0 -3 57 7.7 15 .500 1.083 .620 10.3 0.0 0.0 .438 .849 .544 76.9
2024 Cutter 0.3 0 115 44.9 33 .179 .500 .381 15.7 12.1 14.8 .306 .568 .422 41.7
2024 4-Seam Fastball -0.6 0 66 25.8 17 .313 .563 .350 16.1 29.4 16.7 .157 .323 .217 50.0
2024 Changeup 0.7 0 56 21.9 7 .000 .000 .000 31.6 42.9 16.7 .154 .172 .141 25.0
2024 Curveball -4.6 -1 18 7.0 2 -- -- .700 16.7 0.0 0.0 -- -- .700 --
2024 Sweeper -2.4 0 1 0.4 -- -- -- -- -- -- -- -- -- --
! 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
2026 Changeup 163 85.3 99 18.0 9:45 9:30 15
2026 Curveball 62 75.1 78 19.6 4:30 4:30 0
2026 Cutter 235 89.2 51 9.5 11:45 12:45 -60
2026 4-Seam Fastball 141 92.7 98 18.7 10:45 11:00 -15
2026 Sinker 57 92.8 99 19.4 10:45 10:30 15
2026 Sweeper 80 81.2 48 15.0 3:30 3:00 30
2024 Changeup 56 83.9 99 17.2 9:45 9:30 15
2024 Curveball 18 75.7 74 16.8 4:30 4:30 0
2024 Cutter 115 90.1 54 9.3 11:45 12:30 -45
2024 4-Seam Fastball 66 92.6 98 18.3 10:45 11:00 -15
! 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
2023 491 1,939 10 13 -17 -7 -1
2024 59 256 2 3 -3 -2 -1
2026 187 738 9 -2 -8 -6 -7
Player 737 2,933 21 13 -29 21 -9
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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 %
2023 1,939 50.9 67.2 83.0 25.3 63.9 41.8 59.9 46.6 22.1 7.2 80.0
2024 256 49.6 65.4 89.2 18.6 54.2 40.2 55.9 41.8 18.7 7.8 70.0
2026 738 45.9 67.3 78.5 24.3 68.0 42.0 53.2 44.0 24.6 4.6 76.5
Player 2,933 49.5 67.1 82.4 24.4 64.4 41.7 57.9 45.6 22.5 6.6 78.4
MLB 48.7 67.0 82.7 28.6 57.9 42.6 61.2 47.3 25.0 7.3 76.2
! Note: All figures in this table cover the period 2015-present.

Percentile Rankings

Run Value Pitching
Year Pitching Fastball Breaking Off
Speed 		xERA Fastball
MPH 		Fastball
Spin 		Curve
Spin 		Avg
EV 		Chase% Whiff% K% BB% Barrel% Hard-
Hit% 		GB% Extension
2023 38 64 22 29 25 30 28 74 20 12 21 27 58 43 36 24 14
2024 28 23 5
2026 17 12 76 14 1 23 22 60 56 1 48 7 2 17 17 28 14
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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 %
2023 23.10 18 14.4 4 7 10 7 38.9
2024 24.36 4 2.5 2 0 4 0 0.0
2026 25.35 7 6.0 1 1 6 3 42.9
Player 23.82 29 23.0 6 8 20 10 34.5
Note: xHR tells how many of this pitcher's batted balls 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
2023 18 12 14 15 13 13 15 13 13 11 13 13 15 14 16 14 16 13 16 17 16 17 20 17 12 11 15 14 17 14 14
2024 4 4 1 2 2 2 3 3 1 2 3 2 3 2 2 2 3 3 3 3 4 2 4 3 3 3 2 2 3 2 2
2026 7 7 5 6 6 7 5 6 7 7 5 7 5 7 6 6 6 5 5 10 6 7 8 8 4 4 4 6 7 3 5
Player 29 23 20 23 21 22 23 22 21 20 21 22 23 23 24 22 25 21 24 30 26 26 32 28 19 18 21 22 27 19 21
Note: xHR tells how many of this pitcher's batted balls 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

2024 +/-   2023
Results
BA .196 -.052 ↓ .248
xBA .237 -.023 ↓ .260
OBP .288 -.023 ↓ .311
xOBP .329 +.007 ↑ .322
SLG .451 +.019 ↑ .432
xSLG .434 -.015 ↓ .449
ISO .255 +.072 ↑ .183
xISO .198 +.009 ↑ .189
BABIP .167 -.113 ↓ .280
wOBA .318 -.003 ↓ .321
xwOBA .337 +.003 ↑ .334
wOBAcon .347 -.019 ↓ .366
xwOBAcon .376 -.009 ↓ .385
BACON .250 -.067 ↓ .317
xBACON .310 -.023 ↓ .333
Statcast Hit Metrics
Hard Hit % 42.5 +1.3 ↑ 41.2
Avg Exit Velocity 90.0 -0.1 ↓ 90.1
Launch Angle Sweet-Spot % 45.0 +9.2 ↑ 35.8
Barrel % 7.7 -0.5 ↓ 8.2
Avg Launch Angle 19.9 +2.7 ↑ 17.2
Statcast Bat Tracking
Bat Speed 72.7 +0.8 ↑ 71.9
Attack Angle 10° +2° ↑ 8°
Ideal Attack Angle % 49.5 -2.6 ↓ 52.1
Attack Direction 0° -1° ↓ 1°
Swing Path - Tilt 31° -1° ↓ 32°
Swing Length 7.5 +0.3 ↑ 7.2
Statcast Pitch Metrics
Fastball Velocity 91.0 -0.2 ↓ 91.2
Breaking Velocity 76.1 -2.4 ↓ 78.5
Offspeed Velocity 83.9 -0.1 ↓ 84.0
Batted Ball Results
Barrels 3 -26 ↓ 29
Popup % 7.5 -0.7 ↓ 8.2
Flyball % 30.0 +1.6 ↑ 28.4
Line Drive % 30.0 +4.4 ↑ 25.6
Groundball % 32.5 -5.3 ↓ 37.8
Pull % 35.0 -2.2 ↓ 37.2
Straight Away % 37.5 +3.1 ↑ 34.4
Opposite Field % 27.5 -0.9 ↓ 28.4
Weak Contact % 5.0 +1.6 ↑ 3.4
Pull Airball % 12.5 -4.5 ↓ 17.0
Topped Contact % 22.5 -4.8 ↓ 27.3
Under Contact % 25.0 -4.0 ↓ 29.0
Flare/Burner Contact % 25.0 0.0 25.0
Solid Contact % 12.5 +5.4 ↑ 7.1
HR/FB % 33.3 +15.3 ↑ 18.0
Popups 3 -26 ↓ 29
Flyballs 12 -88 ↓ 100
Line Drives 12 -78 ↓ 90
Groundballs 13 -120 ↓ 133
Plate Discipline
In Zone % 49.6 -1.3 ↓ 50.9
Out of Zone % 50.4 +1.3 ↑ 49.1
Edge % 40.2 -1.6 ↓ 41.8
Zone Swing % 65.4 -1.8 ↓ 67.2
Out of Zone Swing % 18.6 -6.7 ↓ 25.3
In Zone Contact % 89.2 +6.2 ↑ 83.0
Out of Zone Contact % 54.2 -9.7 ↓ 63.9
Whiff % 18.7 -3.4 ↓ 22.1
First Strike % 55.9 -4.0 ↓ 59.9
First Pitch Swing % 15.3 -8.9 ↓ 24.2
Swing % 41.8 -4.8 ↓ 46.6
Meatball Swing % 70.0 -10.0 ↓ 80.0
Meatball % 7.8 +0.6 ↑ 7.2
Zone Swing & Miss % 10.8 -6.2 ↓ 17.0
Out of Zone Swing & Miss % 45.8 +9.7 ↑ 36.1
In Zone 127 -859 ↓ 986
Out of Zone 129 -824 ↓ 953
Edge 103 -708 ↓ 811
In Zone Swings 83 -580 ↓ 663
Out of Zone Swings 24 -217 ↓ 241
In Zone Swing & Misses 9 -104 ↓ 113
Out of Zone Swing & Misses 11 -76 ↓ 87
Basic
Pitches 256 -1,683 ↓ 1,939
PA 59 -432 ↓ 491
AB 51 -396 ↓ 447
Hits 10 -101 ↓ 111
Singles 5 -61 ↓ 66
Doubles 1 -25 ↓ 26
Triples 0 -1 ↓ 1
Home Runs 4 -14 ↓ 18
Walks 5 -34 ↓ 39
Strikeouts 12 -86 ↓ 98
K% 20.3 +0.3 ↑ 20.0
BB% 8.5 +0.6 ↑ 7.9
HBP 2 0 2
Batted Balls 40 -312 ↓ 352
Fastball Percent 70.7 +3.8 ↑ 66.9
Offspeed Percent 21.9 +5.4 ↑ 16.5
Breaking Percent 7.4 -9.2 ↓ 16.6
Number of Fastballs 181 -1,117 ↓ 1,298
Number of Offspeed 56 -264 ↓ 320
Number of Breaking 19 -302 ↓ 321
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2023 Shades 491 .321 401 57 14.2 90 39 43.3
2024 Shades 59 .318 47 0 0.0 12 4 33.3
2026 Shades 187 .353 136 34 25.0 51 7 13.7
! 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 Distribution

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