Spencer Schwellenbach
P | Bats/Throws: R/R | 6' 1" 200LBS | Age: 25
Draft: 2021 | Rd: 2, #59, Atlanta Braves | Nebraska
W L ERA G GS SV IP SO WHIP
2024 8 7 3.35 21 21 0 123.2 127 1.04
2025 6 4 3.21 16 16 0 103.2 96 0.99
2 Seasons 14 11 3.29 37 37 0 227.1 223 1.02
G W-L ERA IP SO WHIP
2024 21 8-7 3.35 123.2 127 1.04
2025 16 6-4 3.21 103.2 96 0.99
2 Seasons 37 14-11 3.29 227.1 223 1.02
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 1887 344 17 4.9 3.4 87.6 117.3 11.7 35.2 .239 .375 .286 .288 .362 39.8 25.4 4.6 3.35 3.44
2025 25 1483 294 23 7.8 5.6 88.8 112.5 8.5 34.4 .266 .420 .275 .310 .387 41.8 23.5 4.2 3.21 3.63
Player 3370 638 40 6.3 4.4 88.1 117.3 10.2 34.8 .251 .395 .281 .298 .374 40.8 24.5 4.4
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

Schwellenbach relies on 6 pitches.
Four Seamer
(35.9%) ,
Slider
(17.3%) ,
Split Finger
(14.2%) ,
Cutter
(11.9%) ,
Curveball
(11.3%) ,
Sinker
(9.4%) ,


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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 %
2024 43.0 57.0 25.3 24.7 7.0 40.1 34.3 25.6 23.0 14.5 5.5 17.2 19.8 20.1
2025 47.3 52.7 19.7 26.9 6.1 39.1 40.8 20.1 25.2 17.3 4.8 13.9 23.5 15.3
Player 45.0 55.0 22.7 25.7 6.6 39.7 37.3 23.0 24.0 15.8 5.2 15.7 21.5 17.9
MLB 44.4 55.6 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
2024 4.7 33.4 25.0 24.4 7.3 4.9 3.4
2025 5.8 34.0 21.8 26.9 3.7 7.8 5.6
Player 5.2 33.7 23.5 25.5 5.6 6.3 4.4
MLB 3.9 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 Split-Finger ATL R 210 84.7 37.8 2.6 9.4ARM -1.9 0.2 2.7 9.4ARM -2.1
2025 4-Seam Fastball ATL R 532 97.1 14.2 -0.5 5.5ARM -2.8 14.9 -1.0 5.5ARM -2.2
2025 Slider ATL R 257 87.1 38.4 4.3 2.5GLV -1.5 -2.4 4.1 2.5GLV -2.3
2025 Sinker ATL R 139 95.6 22.7 0.4 15.3ARM -0.3 7.4 -0.1 15.3ARM 0.0
2025 Curveball ATL R 168 81.1 48.9 -1.0 8.2GLV -1.5 -7.2 -2.5 8.2GLV -1.2
2025 Cutter ATL R 177 94.2 19.6 1.5 0.4GLV -0.6 11.1 2.6 0.4GLV -1.9
2024 Curveball ATL R 275 80.6 49.0 -1.8 8.8GLV -1.3 -7.1 -2.9 8.8GLV -0.6
2024 4-Seam Fastball ATL R 544 96.1 16.1 -1.8 5.7ARM -2.4 13.4 -2.3 5.7ARM -1.9
2024 Sinker ATL R 133 95.1 23.2 0.6 14.7ARM -0.7 7.0 0.2 14.7ARM -0.2
2024 Split-Finger ATL R 242 84.5 37.5 3.0 9.2ARM -1.5 0.6 2.0 9.2ARM -1.5
2024 Slider ATL R 375 87.3 38.9 5.0 3.9GLV -0.3 -3.1 4.7 3.9GLV -1.0
2024 Cutter ATL R 318 92.9 21.6 0.2 1.5GLV -0.1 9.8 1.5 1.5GLV -1.2
! 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 4-Seam Fastball 1.6 9 532 35.9 138 .220 .341 .263 27.3 23.9 21.3 .290 .478 .339 58.0
2025 Slider -2.4 -6 257 17.3 88 .256 .476 .334 31.5 23.9 19.8 .248 .383 .290 38.1
2025 Split-Finger 1.8 4 210 14.2 69 .138 .200 .169 40.4 43.5 24.4 .209 .285 .233 38.9
2025 Cutter 1.9 3 177 11.9 37 .242 .394 .343 16.8 2.7 9.1 .226 .366 .299 21.9
2025 Curveball -0.4 -1 168 11.3 31 .258 .484 .344 30.6 32.3 22.7 .302 .507 .346 33.3
2025 Sinker 0.0 0 139 9.4 45 .256 .488 .371 11.4 2.2 10.0 .312 .491 .360 31.0
2024 4-Seam Fastball 0.1 0 544 28.8 132 .240 .448 .316 20.3 25.8 19.3 .273 .452 .329 47.8
2024 Slider 0.4 1 375 19.9 125 .225 .333 .269 27.9 32.0 21.6 .226 .313 .248 37.0
2024 Cutter 0.6 2 318 16.9 81 .270 .500 .358 19.9 6.2 8.6 .274 .443 .341 31.9
2024 Curveball 0.4 1 275 14.6 58 .236 .436 .306 40.9 24.1 19.7 .217 .399 .284 43.9
2024 Split-Finger 1.3 3 242 12.8 73 .147 .235 .196 46.3 42.5 25.8 .168 .273 .218 31.6
2024 Sinker -0.3 0 133 7.0 30 .231 .385 .350 9.4 10.0 18.8 .266 .317 .314 47.8
! 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 Curveball 168 81.1 70 12.9 7:30 7:30 0
2025 Cutter 177 94.2 60 10.4 12:30 12:00 30
2025 4-Seam Fastball 532 97.1 82 15.4 1:15 12:45 30
2025 Split-Finger 198 84.7 74 10.3 2:15 3:15 -60
2025 Sinker 138 95.6 76 17.3 1:00 2:15 -75
2025 Slider 257 87.1 27 5.1 8:15 7:15 60
2024 Curveball 275 80.6 66 13.2 8:00 7:30 30
2024 Cutter 316 92.9 53 9.3 12:30 11:45 45
2024 4-Seam Fastball 543 96.1 80 14.1 1:15 12:45 30
2024 Split-Finger 232 84.5 84 9.9 2:15 3:15 -60
2024 Sinker 129 95.1 82 16.6 1:15 2:15 -60
2024 Slider 374 87.3 32 6.5 8:45 7:30 75
! 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
2024 499 1,887 3 14 -4 -6 8
2025 408 1,483 9 5 0 -5 9
Player 907 3,370 12 19 -4 12 17
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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 1,887 53.4 69.6 81.0 34.2 51.2 43.3 67.2 53.1 27.4 8.9 75.6
2025 1,483 54.9 66.2 81.1 34.4 52.2 42.1 69.2 51.9 27.6 9.7 76.4
Player 3,370 54.0 68.1 81.0 34.3 51.6 42.8 68.1 52.6 27.5 9.3 76.0
MLB 48.8 67.0 82.1 28.4 57.6 42.6 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
2024 73 48 60 65 82 47 90 79 39 70 95 65 96 79 40 31 74
2025 61 28 44 59 74 8 58 63 42 57 96 66 94 86 53 14 86
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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 24.13 14 12.0 2 5 10 5 35.7
2025 24.61 13 11.3 2 5 6 6 46.2
Player 24.36 27 23.3 4 10 16 11 40.7
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 14 12 11 12 11 14 15 12 9 8 13 10 14 11 13 9 13 10 12 15 14 9 17 14 13 12 9 12 13 10 12
2025 13 11 9 11 11 11 10 10 9 9 8 14 13 15 13 10 12 11 11 12 12 12 13 12 11 12 12 11 12 11 11
Player 27 23 20 23 22 25 25 22 18 17 21 24 27 26 26 19 25 21 23 27 26 21 30 26 24 24 21 23 25 21 23
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

Metric 2024 +/-   2025
Fastball Velocity 95.0 1.2 96.2
Offspeed Velocity 84.5 0.2 84.7
Breaking Velocity 84.5 0.2 84.7
Exit Velocity 87.6 1.2 88.8
Launch Angle 11.7 -3.2 8.5
Barrel % 4.9 2.9 7.8
Hard Hit % 39.8 2.0 41.8
LA Sweet-Spot % 35.2 -0.8 34.4
xBA .239 0.027 .266
BA .226 -0.003 .223
xwOBA .288 0.022 .310
wOBA .286 -0.011 .275
xSLG .375 0.045 .420
SLG .391 -0.013 .378
K% 25.4 -1.9 23.5
BB% 4.6 -0.4 4.2
Swing % 53.1 -1.2 51.9
Whiff% 27.4 0.2 27.6
In Zone % 53.4 1.5 54.9
Out of Zone % 46.6 -1.5 45.1
Out of Zone Swing % 34.2 0.2 34.4
First Pitch Swing % 34.4 1.3 35.7
First Pitch Strike % 67.2 2.0 69.2
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Statcast Fielder Positioning

vs RHHvs LHH
YearAlignment TypePAwOBAPATotal%PATotal%
2024 Shades 499 .286 246 15 6.1 253 129 51.0
2025 Shades 408 .275 184 0 0.0 224 157 70.1
! 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 524 14.0 69.7% 0.0% 238 17.5 6.7% 0.4%
2025 409 13.0 82.6% 0.0% 162 17.2 15.4% 0.6%

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Pitch Distribution