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Gregory Santos

Relief Pitcher

San Francisco Giants

Bats / Throws Right / Right
Date of Birth 8/28/1999 (26)
Height, Weight 6'2", 190 lb
Hometown San Cristobal, DOM

2025 Season Stats

Needs more playing time to qualify
MLB Rank MLB Average
Sv IP ERA WHIP K% BB%
0 7.0 5.14 2.29 0.0% 22.2%
- 3
Sv
- 51.0
IP
- 4.19
ERA
- 1.32
WHIP
- 22.9%
K%
- 9.3%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
97.4 4.5% 18.2% 40.9% 8.3% 4.65 4.95
- 94.6
FB MPH
- 12.5%
SwStr%
- 28.7%
CSW%
- 50.8%
Str-ICR
- 5.8%
MTK%
- 5.00
PLV
- 3.24
PLA
Holds List
Rank
104th

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Gregory Santos Overview

Hide 2025 MLB Percentile | Hide 2025 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 7.40 6.56 7.61 4.95 0.0% 22.2% 10.3 0.00 .296 0.0% 62.5% 35.7% 60.7% 4.5% 18.2% 0.06 4.65
RP MLB Percentile - - - --- - - - - - - - - - - - - - - - - - - - - -
RP MLB AVG 42 2 51.0 3-3 3 7 4.19 1.32 4.19 4.16 4.20 3.24 22.9% 9.3% 8.3 1.11 .291 18.1% 72.4% 38.1% 44.2% 12.5% 28.7% 0.51 5.00
Career 81 0 86.1 3-6 5 10 4.17 1.42 3.50 3.48 3.99 2.96 19.9% 8.0% 9.6 0.52 .327 11.6% 67.2% 34.2% 57.0% 13.0% 30.3% 0.54 5.16

Gregory Santos Repertoire

2021 2022 2023 2024 2025 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
RP MLB Percentile - - - --- - - - - - - - - - - - - - - - -
RP MLB AVG 42 2 51.0 3-3 0 3 7 840 539 302 216 46 30 9 1 6 50 19 2 2
Career 81 0 86.1 3-6 0 5 10 1,411 927 484 386 92 72 14 1 5 77 31 6 4

Gregory Santos Advanced

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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 7.40
RP MLB Percentile - - - - - - - - - - - - - - - -
RP MLB AVG 22.9% 9.3% .241 .393 .712 .310 .291 .321 .238 .314 .283 .363 88.4 89.8 13.0 4.19
Career 19.9% 8.0% .264 .353 .688 .307 .327 .339 .233 .284 .288 .311 88.5 89.5 3.4 3.50

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 1.5% (97.9) 35.6% (97.4) - 60.6% (88.5) - - 1.5% (93.8) - - 37.1% 62.1%
RP MLB Percentile - - - - - - - - - - -
RP MLB AVG 40.6% (94.6) 27.5% (93.9) 20.4% (89.5) 27.9% (85.9) 21.2% (82.2) 16.9% (79.8) 16.4% (86.2) 18.4% (86.5) 16.9% (64.1) 48.0% 51.9%
Career 5.9% (98.0) 38.6% (98.7) - 54.0% (90.7) - - 1.4% (93.3) - - 44.4% 55.4%

Gregory Santos 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%
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 0.0% (0) 21.3% (1) - 16.3% (5) - - 50.0% (0) - - 20.4% 17.1%
RP MLB Percentile - - - - - - - - - - -
RP MLB AVG 27.6% (33) 27.9% (12) 26.1% (16) 29.7% (30) 28.7% (20) 28.2% (17) 22.0% (17) 23.4% (22) 14.2% (0) 28.0% 28.9%
Career 25.3% (9) 28.1% (47) - 32.8% (127) - - 20.0% (1) - - 27.8% 32.5%

Gregory Santos 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
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%
RP MLB Percentile - - - - - - - - - - - - - -
RP MLB AVG 44.2% 22.0% 23.8% 10.1% 35.1% 40.8% 33.7% 25.5% 18.0% 61.7% 24.4% 6.3% 7.6% 38.1%
Career 57.0% 23.0% 15.9% 4.1% 31.5% 39.3% 32.7% 27.9% 16.1% 65.6% 27.4% 4.4% 2.6% 34.2%

Gregory Santos 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%
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%
RP MLB Percentile - - - - - - - - - - - - - -
RP MLB AVG .241 .310 .291 .321 .238 .314 .283 .363 88.4 89.8 13.0 18.1% 38.1% 25.4%
Career .264 .307 .327 .339 .233 .284 .288 .311 88.5 89.5 3.4 11.6% 34.2% 24.1%

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%
RP MLB Percentile - - - - - - - - - - - - - - - -
RP MLB AVG 47.0% 63.9% 47.7% 30.2% 26.2% 18.0% 73.8% 82.9% 56.2% 16.2% 12.5% 28.7% 17.1% 58.4% 0.51 50.8%
Career 47.3% 65.7% 48.4% 31.5% 26.9% 16.1% 73.1% 84.6% 50.9% 17.3% 13.0% 30.3% 19.3% 59.2% 0.54 52.5%

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% 32.8% 46.6% 30.5% 42.0% 13.7%
RP MLB Percentile - - - - - - - - - -
RP MLB AVG 47.0% 34.2% 26.4% 39.4% 30.5% 25.1% 44.4% 29.4% 44.2% 7.0%
Career 47.3% 33.6% 22.7% 43.7% 21.4% 28.5% 50.2% 37.3% 40.0% 7.7%

Gregory Santos Approach › Counts

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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%
RP MLB Percentile - - - - - - - - -
RP MLB AVG 58.6% 11.9% 30.2% 14.4% 61.3% 50.4% 21.0% 24.2% 19.4%
Career 61.9% 11.8% 27.5% 16.7% 61.5% 50.5% 21.1% 27.1% 19.8%

Gregory Santos PLV

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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 4.65 35.6% 20.5% 43.9% -8.3% 8.3% 1.6 +1 4.95
RP MLB Percentile - - - - - - - - - -
RP MLB AVG 840 5.00 46.2% 18.1% 35.8% 10.4% 5.8% 4.7 +4 3.24
Career 1,411 5.16 48.7% 18.6% 32.7% 16.0% 6.9% 14.7 +14 2.96
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