Will Klein
P | Bats/Throws: R/R | 6' 5" 230LBS | Age: 24
Draft: 2020 | Rd: 5, #135, Kansas City Royals | Eastern Illinois
MLB Pipeline Rank
W L ERA G GS SV IP SO WHIP
2024 1 0 11.05 8 0 0 7.1 7 2.45
1 Season 1 0 11.05 8 0 0 7.1 7 2.45
G W-L ERA IP SO WHIP
2024 8 1-0 11.05 7.1 7 2.45
1 Season 8 1-0 11.05 7.1 7 2.45
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
2024 24 146 25 2 8.0 5.3 91.4 110.9 8.9 40.0 .359 .517 .426 .418 .469 40.0 18.4 15.8 11.04 7.96
Player 146 25 2 8.0 5.3 91.4 110.9 8.9 40.0 .359 .517 .426 .418 .469 40.0 18.4 15.8
MLB 7.0 4.8 88.5 122.4 12.3 33.2 .245 .406 .316 .315 .369 36.5 22.2 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Klein relies on 3 pitches.
Four Seamer
(56.8%) ,
Curveball
(29.5%) ,
Slider
(13.7%) ,


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Pitch Tracking



Batted Ball Profile

Season GB % FB % LD % PU % Pull % Straight % Oppo % Weak % Topped % Under % Flare/Burner % Solid % Barrel % Barrel/PA
2024 40.0 28.0 32.0 0.0 44.0 24.0 32.0 4.0 28.0 28.0 28.0 4.0 8.0 5.3
Player 40.0 28.0 32.0 0.0 44.0 24.0 32.0 4.0 28.0 28.0 28.0 4.0 8.0 5.3
MLB 44.4 23.8 24.7 7.1 37.2 37.5 25.2 3.9 32.6 24.8 24.4 5.9 7.0 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
2024 Slider OAK R 20 87.6 34.1 0.5 0.5GLV -3.4 1.5 0.1 0.5GLV -4.6
2024 Curveball OAK R 43 86.5 44.1 0.0 2.7GLV -3.2 -7.7 -2.2 2.7GLV -6.7
2024 4-Seam Fastball OAK R 83 97.0 11.9 1.4 7.6ARM -0.2 17.0 1.2 7.6ARM 0.1
! Note: Years are in reverse order.
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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 %
2024 4-Seam Fastball -2.9 -2 83 56.8 26 .300 .400 .369 17.1 26.9 28.0 .294 .378 .360 35.7
2024 Curveball -4.4 -2 43 29.5 9 .500 .625 .517 28.6 0.0 0.0 .463 .725 .530 37.5
2024 Slider -5.7 -1 20 13.7 3 .667 1.000 .717 25.0 0.0 0.0 .512 .891 .602 66.7
! Note: Years are in reverse order.
! Note: To better align with other values, positive numbers (red) are good, and negative numbers (blue) are poor.
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Spin Direction

Year Pitch Type Pitches MPH Active Spin % Total Movement (In.) Spin-Based Observed Deviation
2024 Curveball 42 86.5 57 10.2 6:45 6:30 15
2024 4-Seam Fastball 83 97.0 99 18.5 1:00 12:45 15
2024 Slider 19 87.6 12 2.4 10:30 9:00 90
! 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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Swing/Take

Runs
Year Team PA Pitches Heart Shadow Chase Waste All
2024 38 146 -1 -1 -3 -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 %
2024 146 49.3 56.9 90.2 16.2 33.3 41.1 73.7 36.3 20.8 8.2 75.0
Player 146 49.3 56.9 90.2 16.2 33.3 41.1 73.7 36.3 20.8 8.2 75.0
MLB 48.7 67.0 82.0 28.5 57.8 42.6 61.0 47.2 24.9 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
2024 91 28 33
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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 -- 0 0.4 0 0 1 0 --
Player -- 0 0.4 0 0 1 0 --
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
2024 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 1 0 0 1 1 1 1 1 1 0 0 1 0 1 1 1
Player 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 1 0 0 1 1 1 1 1 1 0 0 1 0 1 1 1
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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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2024 Shades 38 .426 21 0 0.0 17 4 23.5
! 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 30 15.6 33.3% 0.0% 40 18.1 10.0% 2.5%

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Pitch Distribution