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Gregory Santos

#57 - Relief Pitcher

San Francisco Giants

Bats / Throws Right / Right
Date of Birth 8/28/1999 (26)
Height, Weight 6'3", 236 lb
Hometown San Cristobal, DOM

2026 Season Stats

Needs more playing time to qualify
MLB Rank MLB Average
Sv IP ERA WHIP K% BB%
0 5.0 3.60 1.60 4.5% 13.6%
- 1
Sv
- 15.0
IP
- 4.76
ERA
- 1.46
WHIP
- 22.1%
K%
- 10.8%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
97.2 3.5% 23.3% 46.5% 19.8% 4.36 6.33
- 94.2
FB MPH
- 11.9%
SwStr%
- 28.5%
CSW%
- 50.2%
Str-ICR
- 6.0%
MTK%
- 4.71
PLV
- 4.71
PLA

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Gregory Santos Overview

Hide 2026 MLB Percentile | Hide 2026 MLB Average
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
2021 SF 3 0 2.0 0-2 0 1 22.50 3.50 17.13 22.67 7.21 4.91 23.1% 15.4% 22.5 13.50 .400 100.0% 35.7% 62.5% 37.5% 9.4% 28.3% 0.43 5.21
2022 SF 2 0 3.2 0-0 0 0 4.91 1.64 3.89 4.68 6.11 3.79 11.8% 17.6% 7.4 0.00 .250 0.0% 66.7% 16.7% 75.0% 9.0% 23.9% 0.31 5.00
2023 CWS 60 0 66.1 2-2 5 6 3.39 1.30 2.74 2.65 3.49 2.68 22.8% 5.9% 9.4 0.27 .337 6.3% 70.3% 33.8% 55.8% 14.8% 32.9% 0.62 5.23
2024 SEA 8 0 7.1 0-1 0 2 4.91 1.09 2.75 2.32 3.33 2.65 19.4% 3.2% 8.6 0.00 .304 0.0% 55.6% 34.8% 60.9% 10.7% 25.9% 0.46 5.15
2025 SEA 8 0 7.0 1-1 0 1 5.14 2.29 7.35 6.56 7.61 4.84 0.0% 22.2% 10.3 0.00 .296 0.0% 62.5% 35.7% 60.7% 4.5% 18.2% 0.06 4.69
2026 SF 3 0 5.0 0-0 0 0 3.60 1.60 5.06 4.52 5.87 6.33 4.5% 13.6% 9.0 0.00 .278 0.0% 37.5% 38.9% 55.6% 3.5% 23.3% 0.30 4.36
RP MLB Percentile - - - --- - - - - - - - - - - - - - - - - - - - - -
RP MLB AVG 12 1 15.0 1-1 1 2 4.76 1.46 4.46 4.47 4.43 4.71 22.1% 10.8% 8.8 1.12 .297 17.6% 71.6% 37.5% 44.4% 11.9% 28.5% 0.49 4.71
Career 84 0 91.1 3-6 5 10 4.14 1.43 3.58 3.54 4.09 3.13 19.1% 8.3% 9.6 0.49 .324 10.9% 65.4% 34.5% 56.9% 12.5% 29.9% 0.52 5.11

Gregory Santos Repertoire

2021 2022 2023 2024 2025 2026 All
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Gregory Santos Game Log

Gregory Santos 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
2021 SF 3 0 2.0 0-2 0 0 1 53 31 22 13 5 2 0 0 3 3 2 0 0
2022 SF 2 0 3.2 0-0 0 0 0 67 40 27 17 3 2 1 0 0 2 3 0 0
2023 CWS 60 0 66.1 2-2 0 5 6 1,047 706 341 289 69 58 8 1 2 66 17 5 2
2024 SEA 8 0 7.1 0-1 0 0 2 112 76 36 31 7 5 2 0 0 6 1 1 0
2025 SEA 8 0 7.0 1-1 0 0 1 132 74 58 36 8 5 3 0 0 0 8 0 2
2026 SF 3 0 5.0 0-0 0 0 0 86 54 32 22 5 2 2 1 0 1 3 0 0
RP MLB Percentile - - - --- - - - - - - - - - - - - - - - -
RP MLB AVG 12 1 15.0 1-1 0 1 2 263 166 97 67 14 10 3 0 2 15 7 1 1
Career 84 0 91.1 3-6 0 5 10 1,497 981 516 408 97 74 16 2 5 78 34 6 4

Gregory Santos Advanced

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team K% BB% AVG SLG OPS wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA xERA
2021 SF 23.1% 15.4% .455 1.273 1.811 .705 .400 .625 .386 .633 .309 .855 101.0 100.4 20.5 17.13
2022 SF 11.8% 17.6% .214 .286 .639 .300 .250 .250 .221 .309 .258 .265 87.2 94.8 -1.4 3.89
2023 CWS 22.8% 5.9% .258 .318 .633 .283 .337 .343 .221 .253 .291 .289 88.5 88.2 2.4 2.74
2024 SEA 19.4% 3.2% .241 .310 .600 .269 .304 .304 .223 .257 .281 .285 85.7 87.5 6.4 2.75
2025 SEA 0.0% 22.2% .296 .407 .864 .373 .296 .296 .306 .408 .281 .332 87.7 91.7 5.4 7.35
2026 SF 4.5% 13.6% .263 .474 .838 .368 .278 .278 .291 .359 .307 .321 91.6 82.8 1.7 5.06
RP MLB Percentile - - - - - - - - - - - - - - - -
RP MLB AVG 22.1% 10.8% .245 .396 .730 .326 .297 .326 .239 .327 .284 .370 88.1 89.3 13.0 4.46
Career 19.1% 8.3% .264 .360 .697 .315 .324 .336 .236 .292 .289 .317 88.7 89.1 3.3 3.58

Gregory Santos 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%
2021 SF 39.6% (97.6) 1.9% (97.9) - 58.5% (90.0) - - - - - 41.5% 58.5%
2022 SF 47.8% (98.8) - - 52.2% (87.8) - - - - - 47.8% 52.2%
2023 CWS 2.1% (97.4) 43.8% (98.8) - 52.5% (91.4) - - 1.4% (93.2) - - 45.9% 54.0%
2024 SEA 5.4% (96.6) 33.0% (98.5) - 58.9% (89.8) - - 2.7% (93.1) - - 38.4% 61.6%
2025 SEA - 37.1% (97.4) - 60.6% (88.5) - - 1.5% (93.8) - - 37.1% 62.1%
2026 SF 12.8% (96.1) 33.7% (97.2) - 51.2% (89.1) - - 2.3% (93.7) - - 46.5% 53.5%
RP MLB Percentile - - - - - - - - - - -
RP MLB AVG 35.7% (94.2) 26.7% (93.9) 20.7% (89.3) 26.9% (85.5) 23.3% (82.5) 17.3% (80.7) 18.4% (86.1) 19.5% (86.2) 32.2% (68.2) 47.6% 52.3%
Career 6.1% (97.7) 38.4% (98.6) - 53.8% (90.6) - - 1.5% (93.3) - - 44.6% 55.3%

Gregory Santos Pitch › Results

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team FF CSW% SI CSW% FC CSW% SL CSW% ST CSW% CB CSW% CH CSW% FS CSW% KN CSW% Fastball CSW% Secondary CSW%
2021 SF 23.8% (3) 0.0% (0) - 32.3% (2) - - - - - 22.7% 32.3%
2022 SF 28.1% (3) - - 20.0% (3) - - - - - 28.1% 20.0%
2023 CWS 22.7% (1) 29.4% (44) - 36.9% (109) - - 6.7% (1) - - 29.1% 36.1%
2024 SEA 33.3% (2) 21.6% (2) - 25.8% (8) - - 66.7% (0) - - 23.3% 27.5%
2025 SEA - 20.4% (1) - 16.3% (5) - - 50.0% (0) - - 20.4% 17.1%
2026 SF 27.3% (0) 13.8% (2) - 29.5% (1) - - 0.0% (0) - - 17.5% 28.3%
RP MLB Percentile - - - - - - - - - - -
RP MLB AVG 26.7% (8) 28.1% (5) 27.6% (6) 29.9% (9) 27.6% (8) 26.9% (5) 22.0% (7) 25.9% (9) 22.0% (6) 27.8% 28.4%
Career 26.1% (9) 27.3% (49) - 32.6% (128) - - 18.2% (1) - - 27.1% 32.2%

Gregory Santos Batted Ball › Contact

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team GB% LD% FB% PU% SS% Pull% Cent% Oppo% Foul Str% PC% Fl&B% Solid% Brl% ICR
2021 SF 37.5% 12.5% 37.5% 12.5% 37.5% 37.5% 12.5% 50.0% 15.1% 37.5% 25.0% 0.0% 37.5% 62.5%
2022 SF 75.0% 8.3% 16.7% 0.0% 16.7% 75.0% 25.0% 0.0% 17.9% 83.3% 8.3% 8.3% 0.0% 16.7%
2023 CWS 55.8% 25.6% 16.1% 2.5% 34.7% 37.3% 32.8% 29.9% 15.4% 65.8% 29.1% 4.5% 0.5% 33.8%
2024 SEA 60.9% 13.0% 13.0% 13.0% 21.7% 39.1% 30.4% 30.4% 21.4% 65.2% 30.4% 0.0% 4.3% 34.8%
2025 SEA 60.7% 21.4% 10.7% 7.1% 21.4% 39.3% 42.9% 17.9% 16.7% 64.3% 21.4% 7.1% 7.1% 35.7%
2026 SF 55.6% 22.2% 16.7% 5.6% 38.9% 33.3% 33.3% 33.3% 18.6% 61.1% 22.2% 16.7% 0.0% 38.9%
RP MLB Percentile - - - - - - - - - - - - - -
RP MLB AVG 44.4% 21.3% 24.3% 10.0% 34.2% 41.8% 33.3% 24.8% 17.5% 62.3% 24.2% 6.0% 7.5% 37.5%
Career 56.9% 22.9% 16.0% 4.2% 31.9% 39.0% 32.8% 28.3% 16.2% 65.3% 27.1% 5.2% 2.4% 34.5%

Gregory Santos 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%
2021 SF .455 .705 .400 .625 .386 .633 .309 .855 101.0 100.4 20.5 100.0% 62.5% 38.5%
2022 SF .214 .300 .250 .250 .221 .309 .258 .265 87.2 94.8 -1.4 0.0% 16.7% 11.8%
2023 CWS .258 .283 .337 .343 .221 .253 .291 .289 88.5 88.2 2.4 6.3% 33.8% 23.5%
2024 SEA .241 .269 .304 .304 .223 .257 .281 .285 85.7 87.5 6.4 0.0% 34.8% 25.8%
2025 SEA .296 .373 .296 .296 .306 .408 .281 .332 87.7 91.7 5.4 0.0% 35.7% 27.8%
2026 SF .263 .368 .278 .278 .291 .359 .307 .321 91.6 82.8 1.7 0.0% 38.9% 31.8%
RP MLB Percentile - - - - - - - - - - - - - -
RP MLB AVG .245 .326 .297 .326 .239 .327 .284 .370 88.1 89.3 13.0 17.6% 37.5% 24.6%
Career .264 .315 .324 .336 .236 .292 .289 .317 88.7 89.1 3.3 10.9% 34.5% 24.5%

Gregory Santos 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
2021 SF 47.2% 58.5% 39.6% 25.0% 23.8% 15.1% 76.2% 85.7% 57.1% 18.9% 9.4% 28.3% 15.1% 49.1% 0.43 39.6%
2022 SF 44.8% 59.7% 44.8% 29.7% 20.0% 17.9% 80.0% 89.5% 63.6% 14.9% 9.0% 23.9% 17.9% 55.2% 0.31 53.7%
2023 CWS 47.6% 67.4% 49.4% 34.4% 30.0% 15.4% 70.0% 83.2% 47.1% 18.1% 14.8% 32.9% 19.2% 60.8% 0.62 54.4%
2024 SEA 43.8% 67.9% 52.7% 31.7% 20.3% 21.4% 79.7% 87.2% 65.0% 15.2% 10.7% 25.9% 20.5% 61.6% 0.46 53.6%
2025 SEA 49.2% 56.1% 42.4% 10.4% 10.7% 16.7% 89.3% 89.8% 85.7% 13.6% 4.5% 18.2% 21.2% 50.0% 0.06 40.9%
2026 SF 57.0% 62.8% 43.0% 13.5% 8.1% 18.6% 91.9% 93.8% 80.0% 19.8% 3.5% 23.3% 20.9% 57.0% 0.30 46.5%
RP MLB Percentile - - - - - - - - - - - - - - - -
RP MLB AVG 44.1% 62.9% 46.3% 30.7% 25.6% 17.5% 74.4% 83.7% 58.9% 16.6% 11.9% 28.5% 17.0% 57.4% 0.49 50.2%
Career 47.8% 65.5% 48.1% 30.6% 26.0% 16.2% 74.0% 85.2% 51.5% 17.4% 12.5% 29.9% 19.4% 59.1% 0.52 52.2%

Gregory Santos Approach › Locations

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Year Team Zone% aLoc% x-mLoc% gLoc% hiLoc% y-mLoc% loLoc% iLoc% oLoc% mmLoc%
2021 SF 47.2% 35.8% 15.1% 49.1% 34.0% 20.8% 45.3% 47.2% 37.7% 3.8%
2022 SF 44.8% 28.4% 17.9% 53.7% 11.9% 26.9% 61.2% 55.2% 26.9% 7.5%
2023 CWS 47.6% 33.9% 23.1% 42.9% 20.5% 27.9% 51.6% 36.3% 40.5% 7.2%
2024 SEA 43.8% 33.9% 19.6% 46.4% 30.4% 33.0% 36.6% 39.3% 41.1% 8.0%
2025 SEA 49.2% 32.1% 27.5% 40.5% 20.6% 32.1% 47.3% 30.5% 42.0% 13.0%
2026 SF 57.0% 43.0% 31.4% 25.6% 25.6% 25.6% 48.8% 37.2% 31.4% 8.1%
RP MLB Percentile - - - - - - - - - -
RP MLB AVG 44.1% 35.1% 26.7% 38.2% 36.1% 22.8% 41.0% 30.5% 42.8% 6.5%
Career 47.8% 34.1% 23.2% 42.7% 21.6% 28.2% 50.2% 37.3% 39.5% 7.7%

Gregory Santos Approach › Counts

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team Early% Behind% 2-Str% Early BIP% F-Str% TF-Str% ECS% 2-Str O-Sw% PAR%
2021 SF 56.6% 17.0% 26.4% 13.3% 53.8% 46.2% 23.3% 21.4% 21.4%
2022 SF 53.7% 17.9% 28.4% 13.9% 76.5% 58.8% 22.2% 26.3% 10.5%
2023 CWS 62.8% 9.8% 28.1% 17.7% 63.0% 52.9% 22.1% 27.6% 22.4%
2024 SEA 60.7% 10.7% 29.5% 13.2% 51.6% 35.5% 20.6% 42.4% 18.2%
2025 SEA 62.1% 22.7% 21.2% 14.6% 52.9% 41.2% 12.2% 7.1% 0.0%
2026 SF 57.0% 17.4% 26.7% 14.3% 68.2% 63.6% 26.5% 13.0% 4.3%
RP MLB Percentile - - - - - - - - -
RP MLB AVG 58.5% 12.9% 29.1% 14.1% 59.7% 49.4% 21.0% 26.0% 19.4%
Career 61.6% 12.1% 27.5% 16.6% 61.8% 51.2% 21.4% 26.3% 19.0%

Gregory Santos PLV

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team P PLV QP% AP% BP% Q-BP% MTK% HP HL PLA
2021 SF 53 5.21 50.9% 13.2% 35.8% 15.1% 5.7% 5.3 +2 4.91
2022 SF 67 5.00 41.8% 22.4% 35.8% 6.0% 7.5% 0.7 -1 3.79
2023 CWS 1,047 5.23 50.8% 18.0% 31.2% 19.6% 6.9% 7.8 +12 2.68
2024 SEA 112 5.15 47.3% 23.2% 29.5% 17.9% 5.4% -0.7 0 2.65
2025 SEA 132 4.69 35.6% 21.2% 43.2% -7.6% 8.3% 1.7 +1 4.84
2026 SF 86 4.36 31.4% 18.6% 50.0% -18.6% 19.8% 1.2 -1 6.33
RP MLB Percentile - - - - - - - - - -
RP MLB AVG 263 4.71 39.4% 20.0% 40.6% -1.2% 6.0% 1.9 +2 4.71
Career 1,497 5.11 47.7% 18.7% 33.6% 14.1% 7.6% 16.0 +13 3.13
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