P | Philadelphia Phillies
Bats/Throws: R/R | 6' 2" 204 lbs | Age: 25
Draft: 2022 | Rd. 5, No. 152, Philadelphia Phillies | South Florida
W L ERA G GS SV IP SO WHIP
2024 5 3 2.29 64 2 0 63 74 1.08
2025 8 4 3.30 69 0 4 60 65 1.37
2026 0 0 0.00 1 0 0 1 0 2.00
4 Seasons 14 7 2.76 137 2 4 127 145 1.24
G W-L ERA IP SO WHIP
2024 64 5-3 2.29 63 74 1.08
2025 69 8-4 3.30 60 65 1.37
2026 1 0-0 0.00 1 0 2.00
4 Seasons 137 14-7 2.76 127 145 1.24
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 22 60 6 0 0.0 0.0 88.2 98.6 -7.3 33.3 .185 .217 .314 .249 .348 33.3 42.9 14.3 3.00 2.56
2024 23 1087 158 8 5.1 3.1 87.3 116.9 5.4 32.3 .219 .329 .271 .282 .348 33.5 28.8 6.6 2.29 3.20
2025 24 1073 170 11 6.5 4.1 85.9 113.9 15.0 36.5 .228 .353 .300 .298 .346 33.5 24.4 10.2 3.30 3.66
2026 25 26 5 0 0.0 0.0 76.5 99.6 13.1 40.0 .166 .210 .391 .253 .162 20.0 0.0 16.7 0.00 2.50
Player 2246 339 19 5.6 3.5 86.5 116.9 10.1 34.5 .222 .337 .288 .288 .344 33.3 26.7 8.7
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

Kerkering relies on 3 pitches.
Sinker
(34.6%) ,
Sweeper
(34.6%) ,
Four Seamer
(30.8%) ,


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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 66.7 33.3 0.0 33.3 0.0 66.7 16.7 16.7 33.3 16.7 16.7 33.3 0.0 0.0
2024 54.4 45.6 18.4 24.7 2.5 37.3 35.4 27.2 24.7 19.6 10.1 12.7 15.8 17.1
2025 43.5 56.5 25.3 22.9 8.2 37.6 32.4 30.0 24.1 14.1 5.3 13.5 18.2 24.7
2026 40.0 60.0 60.0 0.0 0.0 40.0 40.0 20.0 40.0 0.0 0.0 0.0 40.0 20.0
Player 49.0 51.0 22.1 23.6 5.3 38.1 33.6 28.3 24.8 16.5 7.7 13.3 17.1 20.6
MLB 44.2 55.8 24.1 24.6 7.1 37.4 37.4 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
2023 0.0 66.7 0.0 33.3 0.0 0.0 0.0
2024 5.7 42.4 16.5 24.7 5.7 5.1 3.1
2025 7.6 27.1 24.7 27.6 5.3 6.5 4.1
2026 20.0 20.0 60.0 0.0 0.0 0.0 0.0
Player 6.8 34.8 20.9 26.0 5.3 5.6 3.5
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 Sinker PHI R 9 95.5 19.0 -2.3 16.9ARM 1.3 11.0 -3.2 16.9ARM 1.3
2026 Sweeper PHI R 9 87.2 36.0 -0.6 12.0GLV 0.2 0.1 1.2 12.0GLV -1.7
2026 4-Seam Fastball PHI R 8 96.6 12.4 0.7 10.7ARM 3.3 17.0 0.7 10.7ARM 2.9
2025 Sweeper PHI R 515 86.8 34.6 -1.7 13.7GLV 1.6 1.8 -0.8 13.7GLV -0.3
2025 Sinker PHI R 202 96.4 19.1 -2.4 16.9ARM 1.5 10.5 -3.1 16.9ARM 1.8
2025 4-Seam Fastball PHI R 356 97.5 13.0 0.2 11.4ARM 3.7 15.9 0.1 11.4ARM 3.8
! 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 0 9 34.6 2 .000 .000 .450 0.0 0.0 0.0 .145 .146 .131 0.0
2026 Sweeper -0.6 0 9 34.6 2 .000 .000 .350 0.0 0.0 0.0 .173 .210 .431 0.0
2026 4-Seam Fastball -12.5 -1 8 30.8 2 .500 1.500 .800 50.0 0.0 0.0 .183 .273 .194 50.0
2025 Sweeper -0.4 -2 515 48.0 128 .235 .387 .305 23.6 21.9 18.3 .231 .386 .285 26.9
2025 4-Seam Fastball 0.9 3 356 33.2 87 .197 .296 .286 27.3 31.0 19.6 .193 .271 .287 32.6
2025 Sinker -1.4 -3 202 18.8 48 .317 .415 .431 16.5 20.8 21.3 .277 .401 .351 54.8
! 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 4-Seam Fastball 355 97.5 97 19.5 1:30 1:15 15
2025 Sinker 202 96.4 92 20.2 1:30 2:00 -30
2025 Sweeper 510 86.8 46 14.6 8:15 9:00 -45
2024 4-Seam Fastball 309 97.6 97 18.9 1:30 1:15 15
2024 Sinker 161 96.4 92 19.1 1:30 2:15 -45
2024 Sweeper 593 86.2 54 17.3 8:00 8:45 -45
! 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 14 60 1 0 0 0 0
2024 257 1,087 11 10 -7 -5 9
2025 263 1,073 1 7 -6 -4 -2
2026 6 26 -1 0 0 0 -1
Player 540 2,246 11 17 -13 11 6
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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 60 46.7 42.9 66.7 31.3 50.0 38.3 71.4 36.7 40.9 11.7 42.9
2024 1,087 52.2 61.4 81.0 27.9 51.0 44.1 60.3 45.4 27.8 7.7 66.7
2025 1,073 54.2 57.9 81.3 25.1 62.6 45.9 62.1 42.9 23.7 7.5 71.3
2026 26 61.5 68.8 81.8 10.0 100.0 26.9 66.7 46.2 16.7 11.5 100.0
Player 2,246 53.1 59.3 80.9 26.5 56.3 44.6 61.6 43.9 26.0 7.7 68.4
MLB 48.8 67.0 82.6 28.4 58.0 42.7 61.1 47.3 25.0 7.4 76.3
! 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
2024 77 71 81 85 92 66 86 41 69 87 70 88 86 92 41
2025 32 43 31 66 88 73 98 13 36 63 18 79 93 57 45
2026
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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 23.72 3 3.3 0 4 3 1 33.3
2025 22.89 6 4.3 2 3 4 1 16.7
Player 23.17 9 7.7 1 7 7 2 22.2
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
2024 3 4 3 5 3 3 5 2 4 1 3 5 4 1 3 2 2 2 4 6 4 3 7 4 2 2 3 3 4 3 3
2025 6 4 3 6 7 4 4 4 4 4 3 3 4 7 4 3 5 4 5 6 5 2 5 5 4 4 3 4 5 4 5
Player 9 8 6 11 10 7 9 6 8 5 6 8 8 8 7 5 7 6 9 12 9 5 12 9 6 6 6 7 9 7 8
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

2026 +/-   2025 +/-   2024 +/-   2023
Results
BA .200 -.038 .238 +.015 .223 -.027 .250
xBA .166 -.062 .228 +.009 .219 +.034 .185
OBP .333 +.010 .323 +.026 .297 -.060 .357
xOBP .305 -.014 .319 +.025 .294 -.007 .301
SLG .600 +.236 .364 +.063 .301 -.032 .333
xSLG .210 -.143 .353 +.024 .329 +.112 .217
ISO .400 +.274 .126 +.047 .079 -.004 .083
xISO .044 -.081 .125 +.015 .110 +.078 .032
BABIP .200 -.099 .299 -.017 .316 -.184 .500
wOBA .391 +.091 .300 +.029 .271 -.043 .314
xwOBA .253 -.045 .298 +.016 .282 +.033 .249
wOBAcon .327 -.023 .350 +.020 .330 -.171 .501
xwOBAcon .162 -.184 .346 -.002 .348 .000 .348
BACON .200 -.124 .324 -.001 .325 -.175 .500
xBACON .166 -.151 .317 -.003 .320 -.050 .370
Statcast Hit Metrics
Hard Hit % 20.0 -13.5 33.5 0.0 33.5 +0.2 33.3
Avg Exit Velocity 76.5 -9.4 85.9 -1.4 87.3 -0.9 88.2
Launch Angle Sweet-Spot % 40.0 +3.5 36.5 +4.2 32.3 -1.0 33.3
Barrel % 0.0 -6.5 6.5 +1.4 5.1 +5.1 0.0
Avg Launch Angle 13.1 -1.9 15.0 +9.6 5.4 +12.7 -7.3
Statcast Bat Tracking
Bat Speed 68.4 -3.4 71.8 +1.2 70.6 -1.4 72.0
Attack Angle -2° -1° -4° 13°
Ideal Attack Angle % 45.5 -5.9 51.4 +3.1 48.3 -14.2 62.5
Attack Direction +7° +1° +11° -10°
Swing Path - Tilt 35° +1° 33° 33° -1° 35°
Swing Length 6.9 -0.3 7.2 -0.1 7.3 -0.3 7.6
Statcast Pitch Metrics
Fastball Velocity 96.0 -1.1 97.1 -0.1 97.2 -0.6 97.8
Breaking Velocity 87.2 +0.4 86.8 +0.6 86.2 +0.2 86.0
Offspeed Velocity 0.0 -- -- -- -- -- --
Batted Ball Results
Barrels 0 -11 11 +3 8 +8 0
Popup % 0.0 -8.2 8.2 +5.7 2.5 +2.5 0.0
Flyball % 60.0 +34.7 25.3 +6.9 18.4 +18.4 0.0
Line Drive % 0.0 -22.9 22.9 -1.8 24.7 -8.6 33.3
Groundball % 40.0 -3.5 43.5 -10.9 54.4 -12.3 66.7
Pull % 40.0 +2.4 37.6 +0.3 37.3 -29.4 66.7
Straight Away % 40.0 +7.6 32.4 -3.0 35.4 +18.7 16.7
Opposite Field % 20.0 -10.0 30.0 +2.8 27.2 +10.5 16.7
Weak Contact % 20.0 +12.4 7.6 +1.9 5.7 +5.7 0.0
Pull Airball % 0.0 -13.5 13.5 +0.8 12.7 -20.6 33.3
Topped Contact % 20.0 -7.1 27.1 -15.3 42.4 -24.3 66.7
Under Contact % 60.0 +35.3 24.7 +8.2 16.5 +16.5 0.0
Flare/Burner Contact % 0.0 -27.6 27.6 +2.9 24.7 -8.6 33.3
Solid Contact % 0.0 -5.3 5.3 -0.4 5.7 +5.7 0.0
HR/FB % 0.0 -14.0 14.0 +7.1 6.9 -- --
Popups 0 -14 14 +10 4 +4 0
Flyballs 3 -40 43 +14 29 +29 0
Line Drives 0 -39 39 0 39 +37 2
Groundballs 2 -72 74 -12 86 +82 4
Plate Discipline
In Zone % 61.5 +7.3 54.2 +2.0 52.2 +5.5 46.7
Out of Zone % 38.5 -7.3 45.8 -2.0 47.8 -5.5 53.3
Edge % 26.9 -19.0 45.9 +1.8 44.1 +5.8 38.3
Zone Swing % 68.8 +10.9 57.9 -3.5 61.4 +18.5 42.9
Out of Zone Swing % 10.0 -15.1 25.1 -2.8 27.9 -3.4 31.3
In Zone Contact % 81.8 +0.5 81.3 +0.3 81.0 +14.3 66.7
Out of Zone Contact % 100.0 +37.4 62.6 +11.6 51.0 +1.0 50.0
Whiff % 16.7 -7.0 23.7 -4.1 27.8 -13.1 40.9
First Strike % 66.7 +4.6 62.1 +1.8 60.3 -11.1 71.4
First Pitch Swing % 16.7 -8.7 25.4 -1.4 26.8 +12.5 14.3
Swing % 46.2 +3.3 42.9 -2.5 45.4 +8.7 36.7
Meatball Swing % 100.0 +28.7 71.3 +4.6 66.7 +23.8 42.9
Meatball % 11.5 +4.0 7.5 -0.2 7.7 -4.0 11.7
Zone Swing & Miss % 18.2 -0.5 18.7 -0.3 19.0 -14.3 33.3
Out of Zone Swing & Miss % 0.0 -37.4 37.4 -11.6 49.0 -1.0 50.0
In Zone 16 -566 582 +15 567 +539 28
Out of Zone 10 -481 491 -29 520 +488 32
Edge 7 -485 492 +13 479 +456 23
In Zone Swings 11 -326 337 -11 348 +336 12
Out of Zone Swings 1 -122 123 -22 145 +135 10
In Zone Swing & Misses 2 -61 63 -3 66 +62 4
Out of Zone Swing & Misses 0 -46 46 -25 71 +66 5
Basic
Pitches 26 -1,047 1,073 -14 1,087 +1,027 60
PA 6 -260 266 +9 257 +243 14
AB 5 -226 231 +2 229 +217 12
Hits 1 -54 55 +4 51 +48 3
Singles 0 -38 38 +1 37 +35 2
Doubles 0 -11 11 -1 12 +11 1
Triples 1 +1 0 0 0 0 0
Home Runs 0 -6 6 +4 2 +2 0
Walks 1 -26 27 +10 17 +15 2
Strikeouts 0 -65 65 -9 74 +68 6
K% 0.0 -24.4 24.4 -4.4 28.8 -14.1 42.9
BB% 16.7 +6.5 10.2 +3.6 6.6 -7.7 14.3
HBP 0 -4 4 -4 8 +8 0
Batted Balls 5 -165 170 +12 158 +152 6
Number of Fastballs 17 -541 558 +76 482 +473 9
Number of Offspeed 0 0 0 0 0 0 0
Number of Breaking 0 0 0 0 0 0 0
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2023 Shades 14 .314 7 0 0.0 7 1 14.3
2024 Shades 251 .277 141 0 0.0 110 9 8.2
2025 Shades 263 .300 157 3 1.9 106 13 12.3
2026 Shades 6 .391 4 0 0.0 2 0 0.0
! 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 %
2023 15 13.3 73.3% 0.0% 16 16.0 31.3% 0.0%
2024 305 14.3 72.1% 0.0% 204 16.3 20.1% 0.0%
2025 255 14.6 62.4% 0.0% 254 15.9 23.6% 1.2%

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Pitch Distribution