Sean Guenther
P | Bats/Throws: L/L | 5' 11" 194LBS | Age: 28
Draft: 2017 | Rd: 7, #209, Miami Marlins | Notre Dame
W L ERA G GS SV IP SO WHIP
2021 0 1 9.30 14 0 0 20.1 15 2.02
2024 3 0 0.86 17 0 0 21 12 0.52
2 Seasons 3 1 5.01 31 0 0 41.1 27 1.26
G W-L ERA IP SO WHIP
2021 14 0-1 9.30 20.1 15 2.02
2024 17 3-0 0.86 21 12 0.52
2 Seasons 31 3-1 5.01 41.1 27 1.26
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
2021 25 360 76 5 6.6 4.9 89.3 110.8 10.6 36.8 .275 .418 .396 .341 .357 38.2 14.6 9.7 9.29 5.02
2024 28 243 57 1 1.8 1.4 88.6 109.7 3.4 21.1 .197 .267 .167 .229 .243 31.6 16.4 2.7 0.86 2.16
Player 603 133 6 4.5 3.4 89.0 110.8 7.4 30.1 .241 .352 .300 .294 .308 35.3 15.3 6.8
MLB 7.0 4.8 88.5 122.4 12.3 33.2 .245 .405 .316 .315 .368 36.5 22.2 8.4
! Note: All figures in this table cover the period 2015-present.

Statcast Pitch Arsenal

Guenther relies on 4 pitches.
Sinker
(37.9%) ,
Split Finger
(31.3%) ,
Slider
(27.6%) ,
Four Seamer
(3.3%) ,


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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
2021 50.0 22.4 22.4 5.3 38.2 31.6 30.3 6.6 31.6 17.1 31.6 6.6 6.6 4.9
2024 63.2 24.6 8.8 3.5 49.1 38.6 12.3 3.5 45.6 22.8 22.8 3.5 1.8 1.4
Player 55.6 23.3 16.5 4.5 42.9 34.6 22.6 5.3 37.6 19.5 27.8 5.3 4.5 3.4
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 4-Seam Fastball DET L 8 90.3 18.3 -1.1 8.7ARM 1.7 15.5 -0.1 8.7ARM 0.5
2024 Split-Finger DET L 76 82.2 40.0 3.9 10.3ARM 0.9 0.4 5.8 10.3ARM 1.8
2024 Slider DET L 67 79.7 45.3 2.8 12.4GLV 3.3 -2.2 3.7 12.4GLV 7.3
2024 Sinker DET L 92 90.1 28.5 3.1 15.1ARM 0.2 5.3 2.8 15.1ARM -0.1
2021 Changeup MIA L 32 87.0 28.6 -1.0 17.4ARM 3.2 7.7 0.1 17.4ARM 3.5
2021 Slider MIA L 123 82.5 43.6 4.3 10.6GLV 4.3 -3.3 4.9 10.6GLV 5.8
2021 4-Seam Fastball MIA L 205 93.0 15.7 -0.4 5.9ARM -1.3 15.9 -0.2 5.9ARM -1.7
! 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 %
2024 Sinker 2.9 3 92 37.9 25 .136 .136 .192 10.3 12.0 20.0 .213 .325 .288 31.6
2024 Split-Finger 0.1 0 76 31.3 24 .217 .391 .275 22.5 20.8 20.8 .178 .219 .193 27.8
2024 Slider 6.2 4 67 27.6 22 .045 .045 .082 26.5 18.2 20.0 .206 .251 .201 27.8
2024 4-Seam Fastball 1.2 0 8 3.3 2 .000 .000 .000 0.0 0.0 0.0 .139 .350 .206 100.0
2021 4-Seam Fastball -2.9 -6 205 56.9 50 .333 .513 .427 24.0 12.0 13.3 .277 .484 .394 45.7
2021 Slider -1.1 -1 123 34.2 43 .317 .463 .374 16.1 18.6 24.2 .246 .341 .274 27.3
2021 Changeup -10.6 -3 32 8.9 9 .556 .556 .500 25.0 11.1 16.7 .399 .485 .382 50.0
! 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 Split-Finger 72 82.2 99 11.4 8:45 8:45 0
2024 Sinker 89 90.1 81 16.3 10:30 9:30 60
2024 Slider 67 79.7 60 13.8 4:30 3:45 45
2021 Changeup 32 87.0 97 19.5 10:00 9:45 15
2021 4-Seam Fastball 205 93.0 85 16.5 11:00 11:15 -15
2021 Slider 123 82.5 63 12.5 4:30 3:45 45
! 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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Swing/Take

Runs
Year Team PA Pitches Heart Shadow Chase Waste All
2021 102 360 -5 1 -4 -3 -11
2024 84 280 7 3 0 -1 9
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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 %
2021 360 50.6 65.9 86.7 28.1 58.0 41.7 58.8 47.2 21.2 6.9 92.0
2024 243 52.7 61.7 91.1 32.2 59.5 49.4 68.5 47.7 19.0 7.0 82.4
Player 603 51.4 64.2 88.4 29.7 58.6 44.8 62.9 47.4 20.3 7.0 88.1
MLB 48.7 67.0 82.0 28.5 57.8 42.6 61.0 47.2 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
2021 40 52 24
2024 6 11 44
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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 %
2021 22.5 1 1.3 0 3 1 0 0.0
2024 -- 0 0.2 0 1 0 0 --
Player 22.5 1 1.4 0 4 1 0 0.0
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
2021 1 1 1 2 1 1 1 2 1 0 1 0 1 1 1 1 1 1 2 1 3 2 2 2 1 1 1 2 2 1 1
2024 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 1 0 0
Player 1 1 1 2 1 1 1 3 1 0 1 0 2 1 1 1 1 1 2 1 4 2 3 2 1 1 1 2 3 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%
2021 Shifts 102 .396 58 20 34.5 44 18 40.9
2024 Shades 73 .167 39 3 7.7 34 9 26.5
! 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 %
2021 66 16.1 24.2% 1.5% 90 21.7 1.1% 7.8%
2024 78 13.5 78.2% 0.0% 37 16.1 29.7% 0.0%

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Pitch Distribution