P | Athletics
Bats/Throws: R/R | 6' 4" 185 lbs | Age: 33
Draft: 2011 | Rd. C-A, No. 48, San Diego Padres | West Boca Raton (FL) HS
W L ERA G GS SV IP SO WHIP
2023 1 0 3.78 14 0 0 16.2 16 1.32
2024 3 2 2.59 28 0 0 31.1 22 1.18
2025 4 4 3.18 42 0 2 39.2 29 1.29
4 Seasons 8 6 3.04 88 0 2 91.2 71 1.24
G W-L ERA IP SO WHIP
2023 14 1-0 3.78 16.2 16 1.32
2024 28 3-2 2.59 31.1 22 1.18
2025 42 4-4 3.18 39.2 29 1.29
4 Seasons 88 8-6 3.04 91.2 71 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
2022 29 64 10 1 10.0 6.3 83.5 102.1 29.5 30.0 .251 .372 .328 .324 .378 10.0 25.0 6.3 2.25 4.40
2023 30 272 46 0 0.0 0.0 88.7 106.1 12.3 32.6 .248 .324 .265 .304 .333 34.8 22.5 12.7 3.78 3.87
2024 31 470 93 3 3.2 2.3 85.2 107.5 18.4 40.9 .230 .354 .294 .293 .311 20.4 17.2 7.8 2.58 3.56
2025 32 658 117 12 10.3 7.2 87.3 112.7 14.4 35.9 .255 .436 .301 .336 .368 35.9 17.5 11.4 3.18 4.80
Player 1464 266 16 6.0 4.2 86.7 112.7 16.0 36.8 .245 .385 .293 .315 .342 29.3 18.6 10.2
MLB 7.2 4.9 88.6 122.9 12.4 33.3 .245 .404 .315 .315 .368 37.0 22.2 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Kelly relies on 6 pitches.
Sweeper
(50.5%) ,
Four Seamer
(29.2%) ,
Slider
(11.7%) ,
Sinker
(4.6%) ,
Cutter
(2.6%) ,
Changeup
(1.5%) ,


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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 %
2022 20.0 80.0 30.0 30.0 20.0 20.0 30.0 50.0 10.0 10.0 0.0 10.0 20.0 50.0
2023 39.1 60.9 21.7 32.6 6.5 21.7 50.0 28.3 13.0 17.4 8.7 8.7 32.6 19.6
2024 39.8 60.2 33.3 19.4 7.5 31.2 37.6 31.2 19.4 12.9 7.5 11.8 24.7 23.7
2025 42.7 57.3 31.6 19.7 6.0 41.9 39.3 18.8 24.8 15.4 2.6 17.1 23.9 16.2
Player 40.2 59.8 30.5 22.2 7.1 33.8 40.2 25.9 20.3 14.7 5.3 13.5 25.6 20.7
MLB 44.2 55.8 24.0 24.7 7.1 37.4 37.4 25.1 20.6 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
2022 0.0 10.0 40.0 40.0 0.0 10.0 6.3
2023 2.2 30.4 28.3 32.6 6.5 0.0 0.0
2024 7.5 24.7 34.4 22.6 7.5 3.2 2.3
2025 5.1 28.2 29.1 23.1 3.4 10.3 7.2
Player 5.3 26.7 31.2 25.2 5.3 6.0 4.2
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
2025 Sinker ATH R 30 95.1 20.8 -1.9 14.9ARM -0.7 9.6 -2.2 14.9ARM -0.2
2025 Changeup ATH R 10 89.2 29.2 -1.4 11.6ARM -3.1 5.4 -1.3 11.6ARM -2.8
2025 4-Seam Fastball ATH R 192 95.8 15.1 -1.0 5.7ARM -1.8 14.7 -1.1 5.7ARM -1.9
2025 Cutter ATH R 17 91.9 25.2 -1.3 1.8GLV 0.2 7.1 -1.2 1.8GLV -0.4
2025 Slider ATH R 77 89.9 28.3 -3.2 4.8GLV 2.0 5.3 -3.6 4.8GLV 0.2
2025 Sweeper ATH R 332 82.9 42.4 2.1 16.8GLV 3.1 -2.3 3.4 16.8GLV 2.9
2024 Slider OAK R 62 88.3 33.0 0.2 7.0GLV 3.5 2.1 -0.4 7.0GLV 2.2
2024 4-Seam Fastball OAK R 150 95.1 17.0 -2.8 5.7ARM -1.9 13.2 -2.5 5.7ARM -1.9
2024 Changeup OAK R 1 88.1 30.6 0.0 17.8ARM 3.2 4.7 0.2 17.8ARM 3.6
2024 Sinker OAK R 3 93.6 21.7 -0.9 14.7ARM -0.2 9.5 -2.3 14.7ARM -0.2
2024 Sweeper OAK R 254 83.2 43.5 3.9 16.8GLV 2.9 -3.7 5.2 16.8GLV 2.7
! 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 %
2025 Sweeper -0.1 0 332 50.5 106 .277 .457 .357 20.6 16.0 17.3 .289 .487 .366 34.2
2025 4-Seam Fastball 0.7 1 192 29.2 42 .111 .222 .242 21.4 23.8 14.3 .189 .338 .290 42.3
2025 Slider 0.3 0 77 11.7 7 .286 .429 .436 28.1 0.0 0.0 .183 .262 .190 42.9
2025 Sinker 1.2 0 30 4.6 3 .000 .000 .000 9.1 0.0 0.0 .478 1.568 .826 33.3
2025 Cutter -4.5 -1 17 2.6 2 .000 .000 .800 20.0 0.0 0.0 .148 .186 .416 0.0
2025 Changeup 7.3 1 10 1.5 3 .000 .000 .000 66.7 66.7 100.0 .104 .117 .093 0.0
2024 Sweeper 1.7 4 254 54.0 85 .227 .293 .262 23.2 15.3 15.9 .226 .349 .285 20.0
2024 4-Seam Fastball 1.2 2 150 31.9 29 .192 .192 .228 23.3 27.6 15.7 .173 .225 .226 5.6
2024 Slider -5.6 -3 62 13.2 11 .444 1.222 .682 16.7 9.1 100.0 .398 .770 .532 50.0
2024 Sinker -26.8 -1 3 0.6 2 .500 1.000 .625 0.0 0.0 0.0 .343 .385 .317 50.0
2024 Changeup -4.0 0 1 0.2 -- -- -- -- -- 0.0 -- -- -- --
! Note: Years are in reverse order.
! Note: To better align with other values, positive numbers (red) are good, and negative numbers (blue) are poor.

Spin Direction

Year Pitch Type Pitches MPH Active Spin % Total Movement (In.) Spin-Based Observed Deviation
2025 Changeup 10 89.2 72 13.2 1:45 2:30 -45
2025 Cutter 17 91.9 34 6.4 12:15 11:30 45
2025 4-Seam Fastball 192 95.8 81 15.4 1:00 12:45 15
2025 Sinker 28 95.1 79 18.0 1:00 2:00 -60
2025 Slider 77 89.9 31 6.9 11:30 10:15 75
2025 Sweeper 332 82.9 65 18.3 7:45 8:30 -45
2024 4-Seam Fastball 150 95.1 74 14.1 12:45 12:45 0
2024 Slider 61 88.3 31 7.9 10:30 9:15 75
2024 Sweeper 254 83.2 69 18.7 7:45 8:30 -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
2022 16 64 2 0 0 -1 0
2023 71 272 4 3 -3 -1 3
2024 127 470 2 6 -3 -3 2
2025 163 658 7 0 -2 -3 2
Player 377 1,464 15 8 -9 15 7
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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 %
2022 64 53.1 64.7 77.3 26.7 62.5 43.8 75.0 46.9 26.7 7.8 60.0
2023 272 48.5 62.1 82.9 27.1 63.2 43.4 69.0 44.1 23.3 10.7 86.2
2024 470 51.1 65.0 85.9 29.6 58.8 42.6 66.1 47.7 22.3 8.1 71.1
2025 658 51.2 61.7 85.1 23.7 57.9 42.4 53.9 43.2 22.2 9.9 67.7
Player 1,464 50.8 63.0 84.6 26.4 59.5 42.7 61.7 44.9 22.6 9.4 72.3
MLB 48.9 67.0 82.5 28.4 58.0 42.7 61.1 47.3 25.0 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
2023 67 38 27
2024 65 74 11
2025 72 79 4
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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 %
2022 19.65 1 1.0 0 0 0 1 100.0
2023 -- 0 0.2 0 1 0 0 --
2024 21.75 2 2.7 -1 0 1 2 100.0
2025 23.67 5 4.0 1 4 2 2 40.0
Player 22.69 8 7.9 0 5 3 5 62.5
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
2022 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
2023 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 1 0 0 0 0 1 0 0
2024 2 3 2 3 3 3 3 3 3 2 2 3 3 2 3 3 3 3 2 3 2 3 3 3 2 3 3 3 3 3 2
2025 5 4 4 5 6 3 3 3 2 3 3 6 5 7 3 4 4 3 3 5 4 4 6 4 3 3 3 4 5 4 4
Player 8 9 7 9 10 7 7 7 6 6 6 10 9 10 7 8 8 7 7 9 7 9 10 9 6 7 7 8 10 8 7
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

2025 +/-   2024 +/-   2023 +/-   2022
Results
BA .224 -.017 .241 +.031 .210 -.004 .214
xBA .255 +.025 .230 -.018 .248 -.003 .251
OBP .317 +.002 .315 +.005 .310 -.003 .313
xOBP .346 +.039 .307 -.037 .344 .000 .344
SLG .378 +.021 .357 +.099 .258 -.171 .429
xSLG .436 +.082 .354 +.030 .324 -.048 .372
ISO .154 +.038 .116 +.068 .048 -.166 .214
xISO .181 +.056 .125 +.049 .076 -.046 .122
BABIP .245 -.033 .278 -.005 .283 +.061 .222
wOBA .301 +.007 .294 +.029 .265 -.063 .328
xwOBA .336 +.043 .293 -.011 .304 -.020 .324
wOBACON .318 +.006 .312 +.039 .273 -.111 .384
xwOBACON .368 +.057 .311 -.022 .333 -.045 .378
BACON .278 -.015 .293 +.010 .283 -.017 .300
xBACON .319 +.036 .283 -.052 .335 -.016 .351
Statcast Hit Metrics
Hard Hit % 35.9 +15.5 20.4 -14.4 34.8 +24.8 10.0
Avg Exit Velocity 87.3 +2.1 85.2 -3.5 88.7 +5.2 83.5
Launch Angle Sweet-Spot % 35.9 -5.0 40.9 +8.3 32.6 +2.6 30.0
Barrel % 10.3 +7.1 3.2 +3.2 0.0 -10.0 10.0
Avg Launch Angle 14.4 -4.0 18.4 +6.1 12.3 -17.2 29.5
Statcast Bat Tracking
Bat Speed 71.3 +0.4 70.9 +0.3 70.6 -- --
Attack Angle 10° 10° 10° -- --
Ideal Attack Angle % 45.8 -10.7 56.5 +7.4 49.1 -- --
Attack Direction -4° -3° +1° -1° -- --
Swing Path - Tilt 33° +1° 32° -1° 33° -- --
Swing Length 7.3 0.0 7.3 0.0 7.3 -- --
Statcast Pitch Metrics
Fastball Velocity 95.4 +0.4 95.0 +0.1 94.9 +1.6 93.3
Breaking Velocity 84.2 0.0 84.2 -0.3 84.5 +1.4 83.1
Offspeed Velocity 89.2 +1.1 88.1 -- -- -- --
Batted Ball Results
Barrels 12 +9 3 +3 0 -1 1
Popup % 6.0 -1.5 7.5 +1.0 6.5 -13.5 20.0
Flyball % 31.6 -1.7 33.3 +11.6 21.7 -8.3 30.0
Line Drive % 19.7 +0.3 19.4 -13.2 32.6 +2.6 30.0
Groundball % 42.7 +2.9 39.8 +0.7 39.1 +19.1 20.0
Pull % 41.9 +10.7 31.2 +9.5 21.7 +1.7 20.0
Straight Away % 39.3 +1.7 37.6 -12.4 50.0 +20.0 30.0
Opposite Field % 18.8 -12.4 31.2 +2.9 28.3 -21.7 50.0
Weak Contact % 5.1 -2.4 7.5 +5.3 2.2 +2.2 0.0
Pull Airball % 17.1 +5.3 11.8 +3.1 8.7 -1.3 10.0
Topped Contact % 28.2 +3.5 24.7 -5.7 30.4 +20.4 10.0
Under Contact % 29.1 -5.3 34.4 +6.1 28.3 -11.7 40.0
Flare/Burner Contact % 23.1 +0.5 22.6 -10.0 32.6 -7.4 40.0
Solid Contact % 3.4 -4.1 7.5 +1.0 6.5 +6.5 0.0
HR/FB % 13.5 +7.0 6.5 +6.5 0.0 -33.3 33.3
Popups 7 0 7 +4 3 +1 2
Flyballs 37 +6 31 +21 10 +7 3
Line Drives 23 +5 18 +3 15 +12 3
Groundballs 50 +13 37 +19 18 +16 2
Plate Discipline
In Zone % 51.2 +0.1 51.1 +2.6 48.5 -4.6 53.1
Out of Zone % 48.8 -0.1 48.9 -2.6 51.5 +4.6 46.9
Edge % 42.4 -0.2 42.6 -0.8 43.4 -0.4 43.8
Zone Swing % 61.7 -3.3 65.0 +2.9 62.1 -2.6 64.7
Out of Zone Swing % 23.7 -5.9 29.6 +2.5 27.1 +0.4 26.7
In Zone Contact % 85.1 -0.8 85.9 +3.0 82.9 +5.6 77.3
Out of Zone Contact % 57.9 -0.9 58.8 -4.4 63.2 +0.7 62.5
Whiff % 22.2 -0.1 22.3 -1.0 23.3 -3.4 26.7
First Strike % 53.9 -12.2 66.1 -2.9 69.0 -6.0 75.0
First Pitch Swing % 21.8 -8.1 29.9 -5.3 35.2 -8.6 43.8
Swing % 43.2 -4.5 47.7 +3.6 44.1 -2.8 46.9
Meatball Swing % 67.7 -3.4 71.1 -15.1 86.2 +26.2 60.0
Meatball % 9.9 +1.8 8.1 -2.6 10.7 +2.9 7.8
Zone Swing & Miss % 14.9 +0.8 14.1 -3.0 17.1 -5.6 22.7
Out of Zone Swing & Miss % 42.1 +0.9 41.2 +4.4 36.8 -0.7 37.5
In Zone 337 +97 240 +108 132 +98 34
Out of Zone 321 +91 230 +90 140 +110 30
Edge 279 +79 200 +82 118 +90 28
In Zone Swings 208 +52 156 +74 82 +60 22
Out of Zone Swings 76 +8 68 +30 38 +30 8
In Zone Swing & Misses 31 +9 22 +8 14 +9 5
Out of Zone Swing & Misses 32 +4 28 +14 14 +11 3
Basic
Pitches 658 +188 470 +198 272 +208 64
PA 166 +38 128 +57 71 +55 16
AB 143 +31 112 +50 62 +48 14
Hits 32 +5 27 +14 13 +10 3
Singles 20 0 20 +10 10 +8 2
Doubles 7 +4 3 0 3 +3 0
Triples 0 -2 2 +2 0 0 0
Home Runs 5 +3 2 +2 0 -1 1
Walks 19 +9 10 +1 9 +8 1
Strikeouts 29 +7 22 +6 16 +12 4
K% 17.5 +0.3 17.2 -5.3 22.5 -2.5 25.0
BB% 11.4 +3.6 7.8 -4.9 12.7 +6.4 6.3
HBP 1 -2 3 +3 0 -1 1
Batted Balls 117 +24 93 +47 46 +36 10
Number of Fastballs 239 +86 153 +71 82 +67 15
Number of Offspeed 10 +9 1 +1 0 0 0
Number of Breaking 77 +15 62 +17 45 +41 4
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2022 Shifts 16 .328 8 3 37.5 8 6 75.0
2023 Shades 71 .265 44 0 0.0 27 11 40.7
2024 Shades 126 .289 74 0 0.0 52 32 61.5
2025 Shades 163 .301 99 0 0.0 64 31 48.4
! 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 %
2022 23 17.9 0.0% 0.0% 7 22.2 0.0% 0.0%
2023 72 15.0 50.0% 1.4% 50 18.0 18.0% 0.0%
2024 123 15.1 49.6% 0.0% 83 17.8 10.8% 2.4%
2025 185 15.8 33.5% 0.5% 134 18.8 2.2% 3.0%

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Pitch Distribution