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Spencer Schwellenbach

#56 - Starting Pitcher

Atlanta Braves

Bats / Throws Right / Right
Date of Birth 5/31/2000 (24)
Height, Weight 6'1", 200 lb
Hometown Saginaw, MI

2025 Season Stats

MLB Rank MLB Average
W-L IP ERA WHIP K% BB%
1-1 31.2 2.56 0.92 21.8% 4.0%
74th 1
W
9th 20
IP
43rd 4.50
ERA
22nd 1.36
WHIP
85th 21.6%
K%
19th 8.7%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
96.7 14.5% 28.3% 53.3% 7.1% 5.18 2.34
15th 93.6
FB MPH
26th 11.4%
SwStr%
80th 27.9%
CSW%
36th 49.2%
Str-ICR
144th 5.5%
MTK%
34th 5.02
PLV
18th -
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Spencer Schwellenbach Overview

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Year Team G GS IP W-L QS ERA WHIP xERA FIP xFIP PLA K% BB% H/9 HR/9 BABIP HR/FB% LOB% ICR GB% SwStr% CSW% IPR PLV
2024 ATL 21 21 123.2 8-7 12 3.35 1.04 3.62 3.29 3.34 2.60 25.4% 4.6% 7.7 1.02 .280 17.7% 74.5% 35.5% 44.9% 14.6% 30.7% 0.64 5.19
2025 ATL 5 5 31.2 1-1 4 2.56 0.92 3.66 3.12 3.05 2.34 21.8% 4.0% 6.8 0.85 .241 18.8% 77.5% 38.5% 47.3% 14.5% 28.3% 0.54 5.18
SP MLB Percentile 45 45 94 30-40 95 77 88 64 73 80 90 53 90 76 67 73 45 52 58 67 85 56 69 81
SP MLB AVG 4 4 20.0 1-1 1 4.50 1.36 4.44 4.36 4.19 3.31 21.6% 8.7% 8.8 1.34 .287 20.3% 73.5% 40.2% 43.2% 11.4% 27.9% 0.47 5.02
Career 26 26 155.1 9-8 16 3.19 1.02 - - - 2.55 24.7% 4.5% 7.5 0.98 .272 17.9% 75.1% 36.1% 45.4% 14.6% 30.3% 0.62 5.19

Spencer Schwellenbach Repertoire

2024 2025 All
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Spencer Schwellenbach Game Log

Spencer Schwellenbach Standard

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Year Team G GS IP W-L QS Sv Hld P Strikes Balls TBF H 1B 2B 3B HR K BB HB WP
2024 ATL 21 21 123.2 8-7 12 0 0 1,887 1,307 580 500 106 61 27 4 14 127 23 6 3
2025 ATL 5 5 31.2 1-1 4 0 0 448 309 139 124 24 16 5 0 3 27 5 1 1
SP MLB Percentile 45 45 94 30-40 95 0 0 73 90 50 92 28 26 20 26 33 77 69 19 14
SP MLB AVG 4 4 20.0 1-1 1 0 0 342 218 124 88 19 12 4 0 3 19 7 1 1
Career 26 26 155.1 9-8 16 0 0 2,335 1,616 719 624 130 77 32 4 17 154 28 7 4

Spencer Schwellenbach Advanced

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Year Team K% BB% AVG SLG OPS wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA xERA
2024 ATL 25.4% 4.6% .226 .391 .662 .286 .280 .310 .240 .294 .298 .369 87.2 89.0 11.2 3.62
2025 ATL 21.8% 4.0% .205 .325 .569 .250 .241 .267 .257 .302 .307 .366 88.5 83.8 7.5 3.66
SP MLB Percentile 53 90 74 73 84 87 73 77 39 64 32 57 63 95 86 64
SP MLB AVG 21.6% 8.7% .247 .413 .730 .323 .287 .321 .249 .331 .286 .383 89.3 90.7 13.6 4.44
Career 24.7% 4.5% .222 .378 .644 .282 .272 .301 .243 .299 .300 .373 87.5 88.1 10.4 -

Spencer Schwellenbach Pitch › Mix

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Year Team FF% (MPH) SI% (MPH) FC% (MPH) SL% (MPH) ST% (MPH) CB% (MPH) CH% (MPH) FS% (MPH) KN% (MPH) Fastball% Secondary%
2024 ATL 29.1% (96.1) 6.8% (95.1) 16.7% (92.9) 19.9% (87.3) - 14.6% (80.6) - 12.8% (84.5) - 36.0% 64.0%
2025 ATL 33.7% (96.7) 12.7% (95.5) 10.0% (93.6) 19.0% (86.9) - 11.2% (80.5) - 13.4% (84.4) - 46.4% 53.6%
SP MLB Percentile 42 (90) 35 (88) 27 (96) 51 (73) - 37 (60) - 23 (34) - 47.0% 51.4%
SP MLB AVG 35.5% (93.6) 20.2% (93.0) 17.9% (88.9) 19.5% (85.3) 16.7% (81.7) 14.9% (79.6) 15.9% (86.0) 20.6% (86.2) - (-) 47.1% 52.9%
Career 30.0% (96.2) 8.0% (95.2) 15.5% (93.0) 19.7% (87.2) - 13.9% (80.6) - 12.9% (84.5) - 38.0% 62.0%

Spencer Schwellenbach Pitch › Results

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Year Team FF CSW% SI CSW% FC CSW% SL CSW% ST CSW% CB CSW% CH CSW% FS CSW% KN CSW% Fastball CSW% Secondary CSW%
2024 ATL 31.3% (57) 24.8% (4) 26.9% (37) 28.8% (63) - 37.5% (52) - 33.1% (62) - 30.0% 31.1%
2025 ATL 35.1% (24) 28.1% (8) 15.6% (2) 24.7% (13) - 34.0% (6) - 21.7% (12) - 33.2% 24.2%
SP MLB Percentile 95 (88) 56 (81) 8 (11) 22 (67) - 61 (54) - 31 (54) - 88.0% 19.7%
SP MLB AVG 27.1% (12) 26.3% (4) 26.9% (6) 29.4% (10) 28.2% (8) 31.1% (7) 23.4% (9) 24.2% (13) - (-) 27.4% 28.2%
Career 32.1% (81) 25.8% (12) 25.5% (39) 28.0% (76) - 36.9% (58) - 30.8% (74) - 30.8% 30.0%

Spencer Schwellenbach Batted Ball › Contact

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Year Team GB% LD% FB% PU% SS% Pull% Cent% Oppo% Foul Str% PC% Fl&B% Solid% Brl% ICR
2024 ATL 44.9% 21.6% 23.0% 10.5% 35.6% 41.6% 34.6% 23.8% 20.3% 64.4% 24.8% 5.8% 5.0% 35.5%
2025 ATL 47.3% 31.9% 17.6% 3.3% 39.6% 37.4% 36.3% 26.4% 20.3% 61.6% 24.2% 7.7% 6.6% 38.5%
SP MLB Percentile 67 4 14 10 23 24 73 55 78 58 54 37 65 58
SP MLB AVG 43.2% 21.6% 25.0% 10.1% 35.5% 42.3% 32.4% 25.3% 17.8% 59.8% 24.8% 6.9% 8.5% 40.2%
Career 45.4% 23.7% 21.9% 9.0% 36.4% 40.7% 34.9% 24.4% 20.3% 63.8% 24.7% 6.2% 5.3% 36.1%

Spencer Schwellenbach Batted Ball › Outcomes

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Year Team AVG wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA HR/FB ICR IPA%
2024 ATL .226 .286 .280 .310 .240 .294 .298 .369 87.2 89.0 11.2 17.7% 35.5% 24.4%
2025 ATL .205 .250 .241 .267 .257 .302 .307 .366 88.5 83.8 7.5 18.8% 38.5% 28.2%
SP MLB Percentile 74 87 73 77 39 64 32 57 63 95 86 45 58 44
SP MLB AVG .247 .323 .287 .321 .249 .331 .286 .383 89.3 90.7 13.6 20.3% 40.2% 27.6%
Career .222 .282 .272 .301 .243 .299 .300 .373 87.5 88.1 10.4 17.9% 36.1% 25.2%

Spencer Schwellenbach Approach › Plate Discipline

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Year Team Zone% Str% Swing% O-Sw% Whiff% Foul Str% Con% Z-Con% O-Con% CS% SwStr% CSW% BIP% PLUS% IPR Str-ICR
2024 ATL 50.8% 69.3% 53.1% 36.1% 27.4% 20.3% 72.6% 82.8% 52.2% 16.2% 14.6% 30.7% 18.2% 63.6% 0.64 56.3%
2025 ATL 52.9% 69.0% 55.1% 36.0% 26.3% 20.3% 73.7% 83.0% 52.6% 13.8% 14.5% 28.3% 20.3% 63.6% 0.54 53.3%
SP MLB Percentile 94 95 97 92 62 78 62 65 70 10 85 56 82 96 69 80
SP MLB AVG 46.5% 63.4% 46.9% 29.8% 24.3% 17.8% 75.7% 84.8% 58.4% 16.5% 11.4% 27.9% 17.7% 57.7% 0.47 49.2%
Career 51.2% 69.2% 53.5% 36.1% 27.2% 20.3% 72.8% 82.8% 52.3% 15.7% 14.6% 30.3% 18.6% 63.6% 0.62 55.8%

Spencer Schwellenbach Approach › Locations

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Year Team Zone% aLoc% x-mLoc% gLoc% hiLoc% y-mLoc% loLoc% iLoc% oLoc% mmLoc%
2024 ATL 50.8% 29.2% 28.0% 42.8% 21.5% 27.7% 50.8% 26.0% 46.1% 8.2%
2025 ATL 52.9% 39.7% 27.7% 32.6% 21.7% 30.1% 48.2% 30.8% 41.5% 9.8%
SP MLB Percentile 94 70 33 24 14 5 66 65 28 96
SP MLB AVG 46.5% 35.7% 26.2% 38.1% 30.9% 24.5% 44.6% 28.6% 45.2% 6.5%
Career 51.2% 31.2% 27.9% 40.9% 21.5% 28.2% 50.3% 26.9% 45.2% 8.5%

Spencer Schwellenbach Approach › Counts

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Year Team Early% Behind% 2-Str% Early BIP% F-Str% TF-Str% ECS% 2-Str O-Sw% PAR%
2024 ATL 59.4% 7.7% 33.2% 15.5% 67.2% 55.2% 22.4% 26.5% 20.3%
2025 ATL 60.0% 10.7% 30.1% 19.0% 72.4% 56.1% 18.6% 28.9% 20.0%
SP MLB Percentile 66 67 56 91 95 83 20 78 57
SP MLB AVG 58.4% 12.1% 29.6% 15.1% 61.3% 50.0% 21.4% 24.6% 18.8%
Career 59.5% 8.3% 32.6% 16.2% 68.2% 55.4% 21.7% 26.9% 20.2%

Spencer Schwellenbach PLV

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Year Team P PLV QP% AP% BP% Q-BP% MTK% HP HL PLA
2024 ATL 1,887 5.19 48.1% 20.9% 31.0% 17.1% 8.3% 4.9 -6 2.60
2025 ATL 448 5.18 48.0% 19.9% 32.1% 15.8% 7.1% -2.0 -2 2.34
SP MLB Percentile 73 81 65 70 78 78 19 80 79 90
SP MLB AVG 342 5.02 46.2% 18.5% 35.3% 11.0% 5.5% - +2 3.31
Career 2,335 5.19 48.1% 20.7% 31.2% 16.9% 8.1% 2.9 -8 2.55
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