P | Texas Rangers
Bats/Throws: R/R | 6' 5" 245 lbs | Age: 26
Draft: 2022 | Rd. 1, No. 3, Texas Rangers | No School
W L ERA G GS SV IP SO WHIP
2024 0 2 3.86 3 3 0 11.2 14 1.54
2025 4 5 5.74 14 14 0 64.1 56 1.46
2026 1 1 3.48 4 4 0 20.2 19 1.31
3 Seasons 5 8 5.03 21 21 0 96.2 89 1.44
G W-L ERA IP SO WHIP
2024 3 0-2 3.86 11.2 14 1.54
2025 14 4-5 5.74 64.1 56 1.46
2026 4 1-1 3.48 20.2 19 1.31
3 Seasons 21 5-8 5.03 96.2 89 1.44
MLB Percentile Rankings
Movement Profile (Induced Break)
?

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 24 218 34 1 2.9 1.8 89.9 104.2 10.3 32.4 .208 .324 .307 .283 .316 47.1 25.5 10.9 3.86 3.22
2025 25 1127 204 24 11.8 8.4 91.2 114.1 8.3 34.8 .279 .492 .352 .364 .421 47.5 19.5 8.0 5.74 5.73
2026 26 348 62 4 6.5 4.4 89.0 110.6 5.6 21.0 .233 .381 .298 .310 .346 43.5 21.1 8.9 3.48 3.76
Player 1693 300 29 9.7 6.7 90.6 114.1 8.0 31.7 .261 .449 .335 .343 .394 46.7 20.6 8.6
MLB 7.2 4.9 88.6 122.9 12.4 33.3 .243 .408 .315 .316 .369 37.0 22.2 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Rocker relies on 5 pitches.
Sinker
(40.8%) ,
Slider
(37.6%) ,
Changeup
(9.8%) ,
Four Seamer
(6.9%) ,
Cutter
(4.9%) ,


  •   
  •   
  •   

+ If Available Pitches Click to Video.


  •   
  •   
  •   
  •   
  •   
  •   
  •   

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 52.9 47.1 23.5 23.5 0.0 38.2 44.1 17.6 23.5 26.5 2.9 14.7 17.6 14.7
2025 49.0 51.0 23.0 24.0 3.9 37.7 44.1 18.1 25.5 22.1 1.5 12.3 22.1 16.7
2026 58.1 41.9 19.4 17.7 4.8 38.7 37.1 24.2 30.6 24.2 3.2 8.1 12.9 21.0
Player 51.3 48.7 22.3 22.7 3.7 38.0 42.7 19.3 26.3 23.0 2.0 11.7 19.7 17.3
MLB 44.2 55.8 24.1 24.6 7.1 37.4 37.3 25.1 20.7 17.6 5.9 16.7 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 5.9 41.2 23.5 17.6 8.8 2.9 1.8
2025 3.9 33.8 19.1 27.0 3.9 11.8 8.4
2026 4.8 43.5 21.0 21.0 3.2 6.5 4.4
Player 4.3 36.7 20.0 24.7 4.3 9.7 6.7
MLB 4.0 32.4 24.9 24.4 5.9 7.2 4.9
! 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
2026 Slider TEX R 131 84.2 40.3 2.6 1.0GLV -3.5 -1.6 3.1 1.0GLV -3.1
2026 Sinker TEX R 142 94.6 23.4 1.9 16.1ARM 0.8 7.3 0.5 16.1ARM 0.5
2026 4-Seam Fastball TEX R 24 95.2 18.3 -4.4 9.7ARM 2.2 11.9 -4.3 9.7ARM 2.0
2026 Changeup TEX R 34 89.7 27.0 -3.3 14.7ARM 0.3 7.1 -3.1 14.7ARM 0.0
2026 Cutter TEX R 17 90.7 28.2 -3.3 0.9ARM -3.2 5.2 -3.1 0.9ARM -3.2
2025 Sinker TEX R 293 95.6 23.9 1.9 16.7ARM 1.3 6.2 1.2 16.7ARM 1.6
2025 Cutter TEX R 286 90.1 28.5 -3.0 1.3GLV -0.8 5.3 -3.1 1.3GLV -0.9
2025 Slider TEX R 180 84.2 40.5 3.6 1.8GLV -2.5 -1.9 3.7 1.8GLV -2.5
2025 Changeup TEX R 69 89.5 28.5 -2.0 15.7ARM 1.0 5.8 -1.7 15.7ARM 1.2
2025 Curveball TEX R 71 77.5 57.4 1.2 8.3GLV -1.2 -11.5 1.3 8.3GLV -0.7
2025 4-Seam Fastball TEX R 228 95.8 18.3 -4.2 11.1ARM 3.1 11.6 -4.2 11.1ARM 3.5
! 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 Sinker -1.1 -2 142 40.8 43 .278 .389 .399 18.3 7.0 16.7 .279 .500 .391 51.5
2026 Slider 0.9 1 131 37.6 32 .200 .233 .223 28.4 34.4 20.0 .159 .186 .183 36.8
2026 Changeup 1.3 0 34 9.8 7 .167 .167 .129 35.7 14.3 16.7 .381 .422 .371 33.3
2026 4-Seam Fastball 4.6 1 24 6.9 4 .000 .000 .000 33.3 75.0 30.0 .017 .038 .024 0.0
2026 Cutter -6.7 -1 17 4.9 4 .500 1.250 .725 22.2 25.0 100.0 .378 1.060 .599 33.3
2025 Sinker -0.2 0 293 26.0 87 .247 .342 .338 11.1 8.0 10.9 .316 .488 .403 51.5
2025 Cutter -0.3 -1 286 25.4 79 .264 .375 .306 35.8 31.6 24.5 .222 .369 .289 35.4
2025 4-Seam Fastball -2.4 -6 228 20.2 62 .364 .709 .476 16.8 14.5 11.5 .308 .611 .416 55.3
2025 Slider 0.7 1 180 16.0 37 .222 .389 .306 38.5 32.4 16.4 .237 .395 .283 29.2
2025 Curveball -2.8 -2 71 6.3 7 .333 1.167 .514 30.8 42.9 21.4 .225 .763 .370 50.0
2025 Changeup -2.0 -1 69 6.1 15 .286 .714 .387 18.9 0.0 0.0 .384 .800 .529 73.3
! Note: Years are in reverse order.
! Note: To better align with other values, positive numbers (red) are good, and negative numbers (blue) are poor.

Spin Direction

Year Pitch Type Pitches MPH Active Spin % Total Movement (In.) Spin-Based Observed Deviation
2026 Changeup 34 89.7 98 16.6 1:45 2:15 -30
2026 Cutter 17 90.7 51 4.2 12:45 12:30 15
2026 4-Seam Fastball 24 95.2 88 15.2 1:30 1:30 0
2026 Sinker 142 94.6 88 18.1 1:15 2:15 -60
2026 Slider 131 84.2 20 4.0 8:00 6:30 90
2025 Changeup 66 89.5 99 17.1 2:00 2:30 -30
2025 Curveball 70 77.5 76 16.8 7:30 7:00 30
2025 Cutter 269 90.1 31 5.0 12:30 11:15 75
2025 4-Seam Fastball 225 95.8 89 15.9 1:30 1:30 0
2025 Sinker 280 95.6 91 18.3 1:30 2:30 -60
2025 Slider 178 84.2 19 4.5 8:15 7:00 75
! Note: Years are in reverse order.
+ Show More Seasons
! Note: This table is showing data from the PITCHER perspective.
+ View Complete Spin Direction Leaderboard

Pitcher Arm Angle

! Note: Data is available from 2020 through the present.
+ View Complete Arm Angle Leaderboard

Statcast Pitching Run Value

Runs
Year Team PA Pitches Heart Shadow Chase Waste All
2024 55 218 3 -1 -2 0 -1
2025 287 1,127 -5 5 -5 -4 -9
2026 90 348 2 1 -2 -1 0
Player 432 1,693 -1 5 -9 -1 -10
+ View Complete Pitching Run Value Leaderboard
+ Show Leverage-Based Run Value

Plate Discipline

Season Pitches Zone % Zone Swing % Zone Contact % Chase % Chase Contact % Edge % 1st Pitch Strike % Swing % Whiff % Meatball % Meatball Swing %
2024 218 49.1 64.5 85.5 33.3 48.6 44.0 65.5 48.6 27.4 7.3 81.3
2025 1,127 51.0 70.3 84.7 28.8 50.9 43.5 58.9 50.0 24.9 8.4 73.7
2026 348 46.3 73.3 88.1 29.4 47.3 37.9 52.2 49.7 24.9 7.5 73.1
Player 1,693 49.8 70.1 85.4 29.5 49.8 42.4 58.3 49.7 25.2 8.1 74.5
MLB 48.8 67.0 82.6 28.5 58.0 42.7 61.1 47.3 25.0 7.4 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
2024 77 24 90
2025 18 14 40 40 4 72 20 10 5 55 49 28 48 4 5 80 86
2026 46 24 72 63 59 56 16 51 51 45 42 54 61 32 91 79
+ View Complete Percentile Rankings Leaderboard

Expected Home Runs

Adjusted

Year Team Avg HR Trot Actual HR xHR HR-xHR Doubters Mostly Gone No Doubters No Doubter %
2024 24.71 1 0.4 1 0 1 0 0.0
2025 25.03 11 10.3 1 5 10 3 27.3
2026 23.27 2 2.2 0 1 3 0 0.0
Player 24.76 14 12.9 1 6 14 3 21.4
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.
+ View Standard Expected Home Runs

Expected Home Runs by Park

Adjusted

Year HR
2024 1 1 0 0 0 0 0 1 0 0 0 0 1 0 1 0 0 1 0 1 1 0 1 1 1 1 0 0 1 0 1
2025 11 12 7 10 12 11 9 7 9 8 8 10 15 16 12 7 13 9 7 13 10 11 13 12 9 8 8 13 13 8 10
2026 2 3 2 1 2 3 3 2 2 2 1 3 1 2 2 2 3 0 3 4 3 4 3 3 1 0 2 3 3 1 1
Player 14 16 9 11 14 14 12 10 11 10 9 13 17 18 15 9 16 10 10 18 14 15 17 16 11 9 10 16 17 9 12
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.
+ View Standard Expected Home Runs By Park
+ View Complete Expected Home Runs Leaderboard

Year to Year Changes

2026 +/-   2025 +/-   2024
Results
BA .237 -.040 .277 +.010 .267
xBA .233 -.046 .279 +.071 .208
OBP .311 -.032 .343 -.009 .352
xOBP .313 -.035 .348 +.043 .305
SLG .338 -.139 .477 +.144 .333
xSLG .381 -.111 .492 +.168 .324
ISO .100 -.099 .199 +.132 .067
xISO .148 -.065 .213 +.098 .115
BABIP .283 -.030 .313 -.031 .344
wOBA .298 -.054 .352 +.045 .307
xwOBA .310 -.054 .364 +.081 .283
wOBAcon .328 -.075 .403 +.047 .356
xwOBAcon .346 -.075 .421 +.105 .316
BACON .306 -.044 .350 -.014 .364
xBACON .310 -.047 .357 +.071 .286
Statcast Hit Metrics
Hard Hit % 43.5 -4.0 47.5 +0.4 47.1
Avg Exit Velocity 89.0 -2.2 91.2 +1.3 89.9
Launch Angle Sweet-Spot % 21.0 -13.8 34.8 +2.4 32.4
Barrel % 6.5 -5.3 11.8 +8.9 2.9
Avg Launch Angle 5.6 -2.7 8.3 -2.0 10.3
Statcast Bat Tracking
Bat Speed 72.5 +0.6 71.9 +1.1 70.8
Attack Angle 11° -1° 12° +3°
Ideal Attack Angle % 47.7 +2.1 45.6 -4.4 50.0
Attack Direction -3° -3° -3°
Swing Path - Tilt 35° +2° 33° +1° 32°
Swing Length 7.4 0.0 7.4 +0.4 7.0
Statcast Pitch Metrics
Fastball Velocity 94.3 +0.6 93.7 -2.0 95.7
Breaking Velocity 84.2 +1.9 82.3 -1.6 83.9
Offspeed Velocity 89.7 +0.2 89.5 -0.9 90.4
Batted Ball Results
Barrels 4 -20 24 +23 1
Popup % 4.8 +0.9 3.9 +3.9 0.0
Flyball % 19.4 -3.6 23.0 -0.5 23.5
Line Drive % 17.7 -6.3 24.0 +0.5 23.5
Groundball % 58.1 +9.1 49.0 -3.9 52.9
Pull % 38.7 +1.0 37.7 -0.5 38.2
Straight Away % 37.1 -7.0 44.1 0.0 44.1
Opposite Field % 24.2 +6.1 18.1 +0.5 17.6
Weak Contact % 4.8 +0.9 3.9 -2.0 5.9
Pull Airball % 8.1 -4.2 12.3 -2.4 14.7
Topped Contact % 43.5 +9.7 33.8 -7.4 41.2
Under Contact % 21.0 +1.9 19.1 -4.4 23.5
Flare/Burner Contact % 21.0 -6.0 27.0 +9.4 17.6
Solid Contact % 3.2 -0.7 3.9 -4.9 8.8
HR/FB % 16.7 -6.7 23.4 +10.9 12.5
Popups 3 -5 8 +8 0
Flyballs 12 -35 47 +39 8
Line Drives 11 -38 49 +41 8
Groundballs 36 -64 100 +82 18
Plate Discipline
In Zone % 46.3 -4.7 51.0 +1.9 49.1
Out of Zone % 53.7 +4.7 49.0 -1.9 50.9
Edge % 37.9 -5.6 43.5 -0.5 44.0
Zone Swing % 73.3 +3.0 70.3 +5.8 64.5
Out of Zone Swing % 29.4 +0.6 28.8 -4.5 33.3
In Zone Contact % 88.1 +3.4 84.7 -0.8 85.5
Out of Zone Contact % 47.3 -3.6 50.9 +2.3 48.6
Whiff % 24.9 0.0 24.9 -2.5 27.4
First Strike % 52.2 -6.7 58.9 -6.6 65.5
First Pitch Swing % 28.9 -2.5 31.4 -8.6 40.0
Swing % 49.7 -0.3 50.0 +1.4 48.6
Meatball Swing % 73.1 -0.6 73.7 -7.6 81.3
Meatball % 7.5 -0.9 8.4 +1.1 7.3
Zone Swing & Miss % 11.9 -3.4 15.3 +0.8 14.5
Out of Zone Swing & Miss % 52.7 +3.6 49.1 -2.3 51.4
In Zone 161 -414 575 +468 107
Out of Zone 187 -365 552 +441 111
Edge 132 -358 490 +394 96
In Zone Swings 118 -286 404 +335 69
Out of Zone Swings 55 -104 159 +122 37
In Zone Swing & Misses 14 -48 62 +52 10
Out of Zone Swing & Misses 29 -49 78 +59 19
Basic
Pitches 348 -779 1,127 +909 218
PA 90 -197 287 +232 55
AB 80 -176 256 +211 45
Hits 19 -52 71 +59 12
Singles 15 -30 45 +34 11
Doubles 2 -10 12 +12 0
Triples 0 -3 3 +3 0
Home Runs 2 -9 11 +10 1
Walks 8 -15 23 +17 6
Strikeouts 19 -37 56 +42 14
K% 21.1 +1.6 19.5 -6.0 25.5
BB% 8.9 +0.9 8.0 -2.9 10.9
HBP 1 -3 4 +3 1
Batted Balls 62 -142 204 +170 34
Number of Fastballs 183 -624 807 +678 129
Number of Offspeed 34 -35 69 +66 3
Number of Breaking 131 -120 251 +165 86
+ Toggle Viewing All Player's Year to Year Stats

Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2024 Shades 55 .307 27 1 3.7 28 22 78.6
2025 Shades 287 .352 129 9 7.0 158 119 75.3
2026 Shades 90 .298 42 13 31.0 48 40 83.3
! 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 47 15.7 31.9% 0.0% 43 19.4 0.0% 0.0%
2025 277 16.5 24.5% 0.7% 179 20.4 0.0% 0.0%
2026 63 17.3 9.5% 0.0% 38 20.2 0.0% 2.6%

+ View Complete Pitch Tempo Leaderboard

Pitch Distribution