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Carson Seymour

#77 - Relief Pitcher

San Francisco Giants

Bats / Throws Right / Right
Date of Birth 12/16/1998 (27)
Height, Weight 6'5", 264 lb
Hometown Poway, CA

2026 Season Stats

MLB Rank MLB Average
Sv IP ERA WHIP K% BB%
1 26.0 5.19 1.65 16.0% 11.8%
133rd 3
Sv
295th 49.0
IP
279th 4.26
ERA
312th 1.35
WHIP
293rd 22.5%
K%
269th 9.8%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
96.5 10.7% 24.1% 43.3% 6.3% 4.66 4.65
56th 94.6
FB MPH
236th 12.1%
SwStr%
334th 28.5%
CSW%
346th 51.1%
Str-ICR
293rd 4.7%
MTK%
341st 4.94
PLV
333rd 3.53
PLA
Holds List
Rank
108th

Articles

9/13/2026Fantasy Baseball Relief Pitcher Roundup: 9/12Rick Graham

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9/8/2026Fantasy Reliever Rankings: Closers, Holds & SOLDs - 9/8Rick Graham

9/7/2026Fantasy Baseball Relief Pitcher Roundup: 9/6Rick Graham

9/6/2026Fantasy Baseball Relief Pitcher Roundup: 9/5Rick Graham

See More Articles
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Carson Seymour Overview

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Year Team G GS IP W-L Sv Hld ERA WHIP xERA FIP xFIP PLA K% BB% H/9 HR/9 BABIP HR/FB% LOB% ICR% GB% SwStr% CSW% IPR% PLV
2025 SF 16 3 36.0 1-3 0 1 4.75 1.39 6.15 6.11 4.49 4.04 16.1% 8.4% 9.3 2.25 .264 37.5% 78.1% 39.7% 52.6% 9.5% 27.7% 0.42 4.78
2026 SF 19 0 26.0 0-2 1 7 5.19 1.65 4.98 5.87 5.03 4.65 16.0% 11.8% 10.0 1.73 .308 27.8% 75.7% 45.9% 47.1% 10.7% 24.1% 0.32 4.66
RP MLB Percentile 13 0 14 0-46 38 58 20 11 21 7 17 5 15 23 15 11 36 8 58 6 69 31 5 4 3
RP MLB AVG 39 2 49.0 3-3 3 7 4.26 1.35 4.22 4.23 4.29 3.53 22.5% 9.8% 8.3 1.11 .291 17.5% 72.5% 36.9% 43.8% 12.1% 28.5% 0.50 4.94
Career 35 3 62.0 1-5 1 8 4.94 1.50 5.66 6.01 4.71 4.30 16.1% 9.9% 9.6 2.03 .283 33.3% 76.9% 42.3% 50.2% 10.0% 26.2% 0.38 4.73

Carson Seymour Repertoire

2025 2026 All
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Carson Seymour Game Log

Carson Seymour 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
2025 SF 16 3 36.0 1-3 0 0 1 621 384 237 155 37 23 5 0 9 25 13 1 0
2026 SF 19 0 26.0 0-2 0 1 7 448 272 176 119 29 18 6 0 5 19 14 1 5
RP MLB Percentile 13 0 14 0-46 0 38 58 16 15 79 19 74 76 57 48 45 11 66 64 6
RP MLB AVG 39 2 49.0 3-3 0 3 7 826 528 298 212 45 30 8 1 6 48 20 3 2
Career 35 3 62.0 1-5 0 1 8 1,069 656 413 274 66 41 11 0 14 44 27 2 5

Carson Seymour Advanced

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Year Team K% BB% AVG SLG OPS wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA xERA
2025 SF 16.1% 8.4% .264 .493 .824 .354 .264 .322 .292 .390 .301 .434 90.5 94.4 5.8 6.15
2026 SF 16.0% 11.8% .284 .490 .866 .373 .308 .349 .262 .343 .287 .357 87.0 87.6 6.1 4.98
RP MLB Percentile 15 23 15 11 9 9 36 27 26 21 42 49 64 80 90 21
RP MLB AVG 22.5% 9.8% .241 .390 .714 .315 .291 .321 .235 .315 .280 .358 87.7 89.2 13.2 4.22
Career 16.1% 9.9% .273 .492 .843 .364 .283 .333 .279 .372 .295 .403 89.0 91.5 6.0 5.66

Carson Seymour 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%
2025 SF22.1% (96.8)42.2% (96.1)10.0% (93.5)20.0% (87.0)-5.8% (85.3)--- 64.3% 35.7%
2026 SF17.9% (97.2)31.0% (96.5)21.9% (94.4)25.9% (88.6)-0.2% (85.6)-3.1% (91.7)- 48.9% 51.1%
RP MLB Percentile 11 (86) 67 (84) 64 (97) 55 (84) - 0 (92) - 8 (95) - 47.6% 52.4%
RP MLB AVG 38.5% (94.6) 26.5% (94.0) 19.7% (89.4) 25.8% (85.9) 21.0% (82.4) 15.6% (80.2) 17.1% (86.1) 18.7% (86.6) 42.5% (61.5) 48.6% 51.2%
Career20.3% (96.9)37.5% (96.2)15.0% (94.0)22.5% (87.8)-3.5% (85.3)-1.3% (91.7)- 57.8% 42.2%

Carson Seymour 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%
2025 SF27.7% (16)33.2% (15)14.5% (3)28.2% (24)-8.3% (1)--- 31.3% 21.2%
2026 SF17.5% (7)30.9% (13)22.4% (8)23.3% (20)-0.0% (0)-14.3% (0)- 26.0% 22.3%
RP MLB Percentile 3 (87) 75 (30) 23 (47) 17 (41) - 0 (0) - 16 (94) - 24.8% 8.8%
RP MLB AVG 27.0% (30) 27.5% (12) 26.7% (14) 29.7% (26) 28.2% (18) 26.9% (14) 21.9% (18) 22.1% (19) 19.4% (9) 27.9% 28.7%
Career24.0% (23)32.4% (28)19.4% (11)25.8% (44)-8.1% (1)-14.3% (0)- 29.4% 21.7%

Carson Seymour 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%
2025 SF 52.6% 19.0% 20.7% 7.8% 34.5% 39.7% 30.2% 30.2% 15.5% 60.3% 21.6% 3.4% 14.7% 39.7%
2026 SF 47.1% 29.4% 21.2% 2.4% 37.6% 45.9% 29.4% 24.7% 17.6% 54.1% 31.8% 4.7% 9.4% 45.9%
RP MLB Percentile 69 4 23 1 27 78 15 52 42 7 8 63 12 6
RP MLB AVG 43.8% 21.7% 24.3% 10.2% 34.7% 40.9% 33.6% 25.5% 18.2% 62.8% 24.6% 5.9% 6.8% 36.9%
Career 50.2% 23.4% 20.9% 5.5% 35.8% 42.3% 29.9% 27.9% 16.4% 57.7% 25.9% 4.0% 12.4% 42.3%

Carson Seymour Batted Ball › Outcomes

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team AVG wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA HR/FB ICR% IPA%
2025 SF .264 .354 .264 .322 .292 .390 .301 .434 90.5 94.4 5.8 37.5% 39.7% 29.7%
2026 SF .284 .373 .308 .349 .262 .343 .287 .357 87.0 87.6 6.1 27.8% 45.9% 32.8%
RP MLB Percentile 15 9 36 27 26 21 42 49 64 80 90 8 6 5
RP MLB AVG .241 .315 .291 .321 .235 .315 .280 .358 87.7 89.2 13.2 17.5% 36.9% 24.5%
Career .273 .364 .283 .333 .279 .372 .295 .403 89.0 91.5 6.0 33.3% 42.3% 31.0%

Carson Seymour 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
2025 SF 49.3% 61.8% 43.6% 22.9% 21.8% 15.5% 78.2% 87.9% 51.4% 18.2% 9.5% 27.7% 18.7% 55.9% 0.42 47.0%
2026 SF 44.9% 60.7% 47.3% 25.5% 22.6% 17.6% 77.4% 88.6% 50.8% 13.4% 10.7% 24.1% 19.0% 54.2% 0.32 43.3%
RP MLB Percentile 49 11 46 5 32 42 32 12 86 8 31 5 73 6 4 1
RP MLB AVG 44.4% 63.8% 47.4% 31.7% 25.5% 18.2% 74.5% 84.0% 58.6% 16.4% 12.1% 28.5% 17.1% 58.3% 0.50 51.1%
Career 47.4% 61.4% 45.2% 24.0% 22.2% 16.4% 77.8% 88.2% 51.1% 16.2% 10.0% 26.2% 18.8% 55.2% 0.38 45.5%

Carson Seymour Approach › Locations

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Year Team Zone% aLoc% x-mLoc% gLoc% hiLoc% y-mLoc% loLoc% iLoc% oLoc% mmLoc%
2025 SF 49.3% 27.4% 26.7% 45.9% 31.2% 25.4% 43.3% 25.6% 47.7% 6.1%
2026 SF 44.9% 28.3% 30.6% 41.1% 42.4% 23.0% 34.6% 38.4% 31.0% 8.5%
RP MLB Percentile 49 15 13 69 78 48 19 96 1 94
RP MLB AVG 44.4% 34.6% 27.0% 38.5% 36.4% 22.9% 40.8% 29.9% 43.1% 6.6%
Career 47.4% 27.8% 28.3% 43.9% 35.9% 24.4% 39.7% 31.0% 40.7% 7.1%

Carson Seymour Approach › Counts

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Year Team Early% Behind% 2-Str% Early BIP% F-Str% TF-Str% ECS% 2-Str O-Sw% PAR%
2025 SF 59.3% 13.7% 27.1% 12.8% 59.0% 50.0% 23.6% 16.7% 14.9%
2026 SF 61.4% 15.8% 24.1% 16.7% 50.4% 42.0% 15.3% 22.2% 17.6%
RP MLB Percentile 87 4 1 79 1 4 1 11 36
RP MLB AVG 58.5% 12.1% 30.0% 14.5% 61.1% 50.2% 21.2% 26.8% 19.2%
Career 60.1% 14.6% 25.8% 14.5% 55.3% 46.5% 20.1% 18.8% 15.9%

Carson Seymour PLV

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team P PLV QP% AP% BP% Q-BP% MTK% HP HL PLA
2025 SF 621 4.78 42.4% 18.4% 39.3% 3.1% 6.8% 9.2 +5 4.04
2026 SF 448 4.66 40.8% 14.3% 44.9% -4.0% 6.3% 3.5 +2 4.65
RP MLB Percentile 16 3 4 11 0 0 15 36 38 5
RP MLB AVG 826 4.94 45.9% 17.4% 36.7% 9.2% 4.7% 0.7 0 3.53
Career 1,069 4.73 41.7% 16.7% 41.6% 0.1% 6.5% 12.7 +8 4.30
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