Isaiah Campbell
P | Bats/Throws: R/R | 6' 4" 230LBS | Age: 27
Draft: 2019 | Rd: CB-B, #76, Seattle Mariners | Arkansas
W L ERA G GS SV IP SO WHIP
2023 4 1 2.83 27 0 1 28.2 33 1.22
2024 0 1 16.20 8 0 0 6.2 6 2.40
2025 0 0 9.00 1 0 0 2 0 2.00
3 Seasons 4 2 5.54 36 0 1 37.1 39 1.47
G W-L ERA IP SO WHIP
2023 27 4-1 2.83 28.2 33 1.22
2024 8 0-1 16.20 6.2 6 2.40
2025 1 0-0 9.00 2 0 2.00
3 Seasons 36 4-2 5.54 37.1 39 1.47
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 25 478 73 7 9.6 5.8 88.3 108.1 14.8 34.2 .227 .380 .273 .304 .371 41.1 27.5 10.8 2.83 3.87
2024 26 119 29 3 10.3 8.1 90.6 113.6 6.5 37.9 .329 .633 .496 .423 .492 48.3 16.2 5.4 16.20 8.39
2025 27 24 9 0 0.0 0.0 86.1 94.5 7.9 33.3 .315 .388 .524 .305 .305 0.0 0.0 0.0 9.00 3.56
Player 621 111 10 9.0 6.0 88.7 113.6 12.1 35.1 .256 .440 .337 .331 .397 39.6 23.5 9.0
MLB 7.1 4.8 88.5 122.9 12.4 33.2 .245 .406 .316 .316 .369 36.8 22.2 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Campbell relies on 5 pitches.
Slider
(29.2%) ,
Four Seamer
(25.0%) ,
Sweeper
(16.7%) ,
Sinker
(16.7%) ,
Curveball
(12.5%) ,


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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 %
2023 39.7 60.3 30.1 24.7 5.5 35.6 31.5 32.9 19.2 12.3 8.2 16.4 19.2 24.7
2024 51.7 48.3 24.1 24.1 0.0 44.8 34.5 20.7 24.1 17.2 10.3 20.7 17.2 10.3
2025 55.6 44.4 22.2 22.2 0.0 44.4 22.2 33.3 33.3 22.2 0.0 11.1 0.0 33.3
Player 44.1 55.9 27.9 24.3 3.6 38.7 31.5 29.7 21.6 14.4 8.1 17.1 17.1 21.6
MLB 44.3 55.7 23.9 24.7 7.1 37.3 37.4 25.2 20.6 17.7 5.9 16.6 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 5.5 27.4 28.8 21.9 6.8 9.6 5.8
2024 0.0 44.8 13.8 24.1 6.9 10.3 8.1
2025 0.0 44.4 33.3 22.2 0.0 0.0 0.0
Player 3.6 33.3 25.2 22.5 6.3 9.0 6.0
MLB 4.0 32.5 24.9 24.4 5.9 7.1 4.8
! 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 Sweeper BOS R 4 86.1 44.0 7.1 16.2GLV 3.7 -6.5 7.7 16.2GLV 2.3
2025 Sinker BOS R 4 95.0 22.3 0.8 15.3ARM 0.4 8.3 -1.0 15.3ARM 0.1
2025 Curveball BOS R 3 84.0 51.0 2.0 5.9GLV -0.7 -12.0 2.2 5.9GLV -3.4
2025 4-Seam Fastball BOS R 6 95.4 14.8 -1.0 4.1ARM -2.7 15.5 -0.3 4.1ARM -3.5
2025 Slider BOS R 7 90.5 29.6 -0.6 2.0GLV -1.0 3.7 -2.1 2.0GLV -2.8
2024 4-Seam Fastball BOS R 23 93.6 12.7 1.6 5.0ARM -1.5 18.5 2.8 5.0ARM -2.6
2024 Sweeper BOS R 37 81.6 44.4 3.0 16.5GLV 2.6 -2.9 4.4 16.5GLV 2.4
2024 Slider BOS R 57 86.7 34.9 0.6 4.8GLV 0.7 1.4 0.2 4.8GLV 0.0
2024 Sinker BOS R 2 91.1 24.0 1.5 14.8ARM 1.2 9.0 -1.8 14.8ARM -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 %
2025 Slider -30.2 -2 7 29.2 3 1.000 2.000 1.267 0.0 0.0 -- .326 .429 .326 0.0
2025 4-Seam Fastball -3.6 0 6 25.0 1 1.000 1.000 .900 0.0 0.0 0.0 .771 .915 .747 0.0
2025 Sinker 10.0 0 4 16.7 2 .000 .000 .000 0.0 0.0 -- .347 .405 .330 0.0
2025 Sweeper 11.0 0 4 16.7 2 .000 .000 .000 33.3 0.0 0.0 .118 .141 .107 0.0
2025 Curveball 7.9 0 3 12.5 1 .000 .000 .000 0.0 0.0 0.0 .158 .197 .145 0.0
2024 Slider -1.7 -1 57 47.9 16 .357 .429 .447 22.6 6.3 11.1 .297 .349 .338 46.2
2024 Sweeper -7.1 -3 37 31.1 12 .417 .833 .525 20.0 8.3 14.3 .377 .740 .468 45.5
2024 4-Seam Fastball -12.5 -3 23 19.3 8 .500 1.250 .725 37.5 50.0 57.1 .328 1.022 .554 75.0
2024 Sinker 10.8 0 2 1.7 1 .000 .000 .000 0.0 0.0 -- .214 .218 .217 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
2024 4-Seam Fastball 23 93.6 87 18.7 12:45 12:30 15
2024 Slider 57 86.7 27 6.0 9:45 9:00 45
2024 Sweeper 37 81.6 52 18.2 7:30 8:30 -60
2023 4-Seam Fastball 216 95.0 83 17.3 12:45 12:30 15
2023 Slider 182 86.5 32 6.2 8:45 8:45 0
2023 Sweeper 66 82.1 58 15.7 7:45 8:15 -30
! Note: Years are in reverse order.
! 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 118 478 5 3 -4 -2 3
2024 37 119 -4 -1 -1 0 -6
2025 9 24 -2 1 0 0 -1
Player 164 621 -1 3 -5 -1 -5
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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 478 46.7 68.2 82.2 28.2 47.2 42.5 63.0 46.9 28.6 9.8 80.9
2024 119 48.7 74.1 83.7 27.9 41.2 46.2 56.8 50.4 23.3 5.9 71.4
2025 24 58.3 64.3 100.0 40.0 75.0 41.7 66.7 54.2 7.7 0.0 --
Player 621 47.5 69.2 83.3 28.5 47.3 43.2 61.8 47.8 26.6 8.7 79.6
MLB 48.8 67.0 82.1 28.4 57.6 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 68 92 46
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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 22.86 2 1.8 0 2 2 0 0.0
2024 26.48 3 3.2 0 0 2 2 66.7
2025 24.75 1 0.5 1 0 1 0 0.0
Player 24.99 6 5.4 1 2 5 2 33.3
Note: xHR tells how many of this pitcher's home runs 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 2 1 1 2 2 2 2 1 2 2 1 2 1 2 2 2 2 2 2 2 2 2 3 2 0 2 2 2 2 2 1
2024 3 3 3 4 3 3 3 2 3 3 4 4 3 3 3 2 4 3 3 4 3 3 4 3 3 3 3 3 3 3 4
2025 1 0 1 0 0 1 1 0 1 0 1 1 0 1 1 0 0 0 0 1 0 0 1 0 0 0 1 1 0 1 1
Player 6 4 5 6 5 6 6 3 6 5 6 7 4 6 6 4 6 5 5 7 5 5 8 5 3 5 6 6 5 6 6
Note: xHR tells how many of this pitcher's home runs 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

2023 +/-   2024 +/-   2025
Results
BA .210 +.190 .400 +.044 .444
xBA .227 +.102 .329 -.014 .315
OBP .300 +.132 .432 +.012 .444
xOBP .316 +.049 .365 -.050 .315
SLG .314 +.429 .743 +.035 .778
xSLG .380 +.253 .633 -.245 .388
ISO .105 +.238 .343 -.010 .333
xISO .154 +.150 .304 -.231 .073
BABIP .282 +.141 .423 -.048 .375
wOBA .273 +.223 .496 +.028 .524
xwOBA .304 +.119 .423 -.118 .305
wOBACON .321 +.264 .585 -.061 .524
xwOBACON .371 +.121 .492 -.187 .305
BACON .301 +.182 .483 -.039 .444
xBACON .327 +.070 .397 -.082 .315
Statcast Hit Metrics
Hard Hit % 41.1 +7.2 48.3 -48.3 0.0
Avg Exit Velocity 88.3 +2.3 90.6 -4.5 86.1
Launch Angle Sweet-Spot % 34.2 +3.7 37.9 -4.6 33.3
Barrel % 9.6 +0.7 10.3 -10.3 0.0
Avg Launch Angle 14.8 -8.3 6.5 +1.4 7.9
Statcast Bat Tracking
Bat Speed 70.9 +1.0 71.9 -2.0 69.9
Attack Angle +2° 10° -6°
Ideal Attack Angle % 54.1 +14.6 68.7 -30.2 38.5
Attack Direction -1° +5°
Swing Path - Tilt 32° +2° 34° 34°
Swing Length 7.2 -0.1 7.1 0.0 7.1
Statcast Pitch Metrics
Fastball Velocity 95.0 -1.6 93.4 +1.8 95.2
Breaking Velocity 85.3 -0.6 84.7 +3.1 87.8
Offspeed Velocity -- -- -- -- 0.0
Batted Ball Results
Barrels 7 -4 3 -3 0
Popup % 5.5 -5.5 0.0 0.0 0.0
Flyball % 30.1 -6.0 24.1 -1.9 22.2
Line Drive % 24.7 -0.6 24.1 -1.9 22.2
Groundball % 39.7 +12.0 51.7 +3.9 55.6
Pull % 35.6 +9.2 44.8 -0.4 44.4
Straight Away % 31.5 +3.0 34.5 -12.3 22.2
Opposite Field % 32.9 -12.2 20.7 +12.6 33.3
Weak Contact % 5.5 -5.5 0.0 0.0 0.0
Pull Airball % 16.4 +4.3 20.7 -9.6 11.1
Topped Contact % 27.4 +17.4 44.8 -0.4 44.4
Under Contact % 28.8 -15.0 13.8 +19.5 33.3
Flare/Burner Contact % 21.9 +2.2 24.1 -1.9 22.2
Solid Contact % 6.8 +0.1 6.9 -6.9 0.0
HR/FB % 9.1 +33.8 42.9 +7.1 50.0
Popups 4 -4 0 0 0
Flyballs 22 -15 7 -5 2
Line Drives 18 -11 7 -5 2
Groundballs 29 -14 15 -10 5
Plate Discipline
In Zone % 46.7 +2.0 48.7 +9.6 58.3
Out of Zone % 53.3 -2.0 51.3 -9.6 41.7
Edge % 42.5 +3.7 46.2 -4.5 41.7
Zone Swing % 68.2 +5.9 74.1 -9.8 64.3
Out of Zone Swing % 28.2 -0.3 27.9 +12.1 40.0
In Zone Contact % 82.2 +1.5 83.7 +16.3 100.0
Out of Zone Contact % 47.2 -6.0 41.2 +33.8 75.0
Whiff % 28.6 -5.3 23.3 -15.6 7.7
First Strike % 63.0 -6.2 56.8 +9.9 66.7
First Pitch Swing % 35.3 +7.9 43.2 -21.0 22.2
Swing % 46.9 +3.5 50.4 +3.8 54.2
Meatball Swing % 80.9 -9.5 71.4 -- 0.0
Meatball % 9.8 -3.9 5.9 -5.9 0.0
Zone Swing & Miss % 17.8 -6.2 11.6 -11.6 0.0
Out of Zone Swing & Miss % 51.4 +1.5 52.9 -27.9 25.0
In Zone 223 -165 58 -44 14
Out of Zone 255 -194 61 -51 10
Edge 203 -148 55 -45 10
In Zone Swings 152 -109 43 -34 9
Out of Zone Swings 72 -55 17 -13 4
In Zone Swing & Misses 27 -22 5 -5 0
Out of Zone Swing & Misses 37 -28 9 -8 1
Basic
Pitches 478 -359 119 -95 24
PA 120 -83 37 -28 9
AB 105 -70 35 -26 9
Hits 22 -8 14 -10 4
Singles 16 -8 8 -5 3
Doubles 3 0 3 -3 0
Triples 1 -1 0 0 0
Home Runs 2 +1 3 -2 1
Walks 13 -11 2 -2 0
Strikeouts 33 -27 6 -6 0
K% 27.5 -11.3 16.2 -16.2 0.0
BB% 10.8 -5.4 5.4 -5.4 0.0
HBP 1 -1 0 0 0
Batted Balls 73 -44 29 -20 9
Number of Fastballs 224 -199 25 -15 10
Number of Offspeed 0 0 0 0 0
Number of Breaking 185 -128 57 -47 10
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2023 Shades 118 .275 71 4 5.6 47 34 72.3
2024 Shades 37 .496 18 2 11.1 19 9 47.4
2025 Shades 9 .524 6 0 0.0 3 3 100.0
! 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 103 14.9 54.4% 0.0% 108 17.5 13.0% 1.9%
2024 26 15.6 23.1% 0.0% 21 17.1 14.3% 0.0%
2025 7 16.1 42.9% 0.0% 4 15.6 25.0% 0.0%

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Pitch Distribution