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Robert Stock

Starting Pitcher

Boston Red Sox

Bats / Throws Left / Right
Date of Birth 11/21/1989 (35)
Height, Weight 6'1", 260 lb
Hometown Bellevue, WA

2025 Season Stats

MLB Rank MLB Average
Sv IP ERA WHIP K% BB%
0 2.0 4.50 2.00 0.0% 11.1%
81st 0
Sv
318th 23
IP
206th 4.57
ERA
285th 1.38
WHIP
337th 21.2%
K%
213th 9.0%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
92.8 10.3% 31.0% 34.5% 0.0% 4.84 3.31
115th 93.6
FB MPH
224th 11.3%
SwStr%
108th 27.6%
CSW%
336th 49.2%
Str-ICR
1st 5.7%
MTK%
292nd 5.01
PLV
196th -
PLA

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Robert Stock 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
2018 SD 32 0 39.2 1-1 0 2.50 1.26 - 2.70 - - 22.9% 7.8% 8.4 0.23 .324 - 77.1% - - 11.0% 31.9% 0.54 -
2019 SD 10 0 10.2 1-0 0 10.13 2.06 - 5.47 - - 26.8% 14.3% 11.8 1.69 .400 - 44.6% - - 11.8% 30.1% 0.42 -
2020 BOS 10 0 13.1 0-1 0 4.73 1.95 5.62 3.34 4.43 3.18 22.6% 16.1% 10.8 0.00 .432 0.0% 65.4% 39.5% 60.5% 10.7% 24.5% 0.30 5.20
2021 CHC/NYM 3 3 9.0 0-2 0 8.00 2.11 7.98 8.84 5.70 3.66 20.0% 20.0% 10.0 3.00 .304 75.0% 75.9% 46.2% 50.0% 10.7% 28.0% 0.39 4.46
2025 BOS 1 0 2.0 0-0 0 4.50 2.00 7.02 4.57 6.80 3.31 0.0% 11.1% 13.5 0.00 .375 0.0% 75.0% 50.0% 62.5% 10.3% 31.0% 0.31 4.84
SP MLB Percentile 0 0 5 0-30 0 38 17 15 36 10 44 0 38 12 57 18 62 49 13 90 36 69 15 16
SP MLB AVG 4 4 23.0 1-2 1 4.57 1.38 4.49 4.40 4.30 3.24 21.2% 9.0% 8.9 1.27 .289 19.2% 73.2% 40.2% 43.1% 11.3% 27.6% 0.46 5.01
Career 56 3 74.2 2-4 0 4.70 1.62 - - - 1.10 22.5% 12.1% 9.6 0.72 .354 54.5% 68.6% 14.3% 56.9% 11.0% 29.6% 0.45 4.98

Robert Stock Repertoire

2018 2019 2020 2021 2025 All
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Robert Stock Game Log

Robert Stock 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
2018 SD 32 0 39.2 1-1 0 0 4 609 388 221 166 37 31 5 0 1 38 13 2 3
2019 SD 10 0 10.2 1-0 0 0 0 229 126 103 56 14 9 3 0 2 15 8 1 4
2020 BOS 10 0 13.1 0-1 0 0 0 253 141 112 62 16 12 4 0 0 14 10 0 3
2021 CHC/NYM 3 3 9.0 0-2 0 0 0 168 96 72 45 10 6 1 0 3 9 9 1 1
2025 BOS 1 0 2.0 0-0 0 0 0 29 18 11 9 3 3 0 0 0 0 1 0 0
SP MLB Percentile 0 0 5 0-30 0 0 0 5 5 94 6 80 62 72 12 57 0 78 35 27
SP MLB AVG 4 4 23.0 1-2 1 0 0 384 245 140 99 22 14 4 0 3 21 8 1 1
Career 56 3 74.2 2-4 0 0 4 1,288 769 519 338 80 61 13 0 6 76 41 4 11

Robert Stock Advanced

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Year Team K% BB% AVG SLG OPS wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA xERA
2018 SD 22.9% 7.8% .247 .300 .615 .276 .324 .330 - - - - - - - -
2019 SD 26.8% 14.3% .298 .489 .900 .386 .400 .438 - - - - - - - -
2020 BOS 22.6% 16.1% .320 .400 .826 .369 .432 .432 .280 .355 .362 .386 90.6 90.1 6.1 5.62
2021 CHC/NYM 20.0% 20.0% .286 .571 1.015 .433 .304 .385 .285 .432 .323 .481 91.3 100.7 11.1 7.98
2025 BOS 0.0% 11.1% .375 .375 .819 .375 .375 .375 .390 .423 .390 .389 91.5 77.8 17.1 7.02
SP MLB Percentile 0 38 10 47 31 30 18 27 5 15 10 39 20 95 33 15
SP MLB AVG 21.2% 9.0% .249 .413 .735 .325 .289 .322 .250 .333 .287 .381 89.2 90.7 13.6 4.49
Career 22.5% 12.1% .276 .383 .755 .342 .354 .372 .186 .324 .351 .430 91.0 91.7 9.1 -

Robert Stock 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%
2018 SD 5.1% (97.6) 1.3% (96.9) - 4.9% (81.8) - - 0.3% (82.5) - - 6.4% 5.3%
2019 SD 10.5% (97.9) - - 6.6% (83.7) - - 0.9% (84.5) - - 10.5% 7.4%
2020 BOS 64.0% (96.8) - - 22.9% (84.6) - - 13.0% (82.3) - - 64.0% 36.0%
2021 CHC/NYM 63.1% (95.9) - 1.2% (84.0) 23.2% (83.3) - 0.6% (76.0) 11.9% (82.7) - - 63.1% 36.9%
2025 BOS 6.9% (92.4) 37.9% (92.8) 41.4% (88.4) 3.4% (80.3) - - 10.3% (79.4) - - 44.8% 55.2%
SP MLB Percentile - 71 (36) 85 (34) - - - - - - 41.5% 58.2%
SP MLB AVG 35.5% (93.6) 19.9% (93.1) 18.0% (88.8) 19.4% (85.3) 16.8% (81.7) 14.7% (79.5) 15.8% (86.0) 19.9% (86.4) - (-) 46.8% 53.2%
Career 25.2% (96.6) 1.5% (94.5) 1.1% (87.8) 11.1% (83.5) - 0.1% (76.0) 4.7% (82.3) - - 26.7% 16.9%

Robert Stock 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%
2018 SD 19.4% (3) 37.5% (2) - 43.3% (2) - - 0.0% (0) - - 23.1% 578.1%
2019 SD 37.5% (3) - - 46.7% (5) - - 50.0% (1) - - 37.5% 352.9%
2020 BOS 25.9% (17) - - 24.1% (7) - - 18.2% (3) - - 25.9% 22.0%
2021 CHC/NYM 22.6% (8) - 100.0% (2) 35.9% (4) - 100.0% (0) 30.0% (4) - - 22.6% 37.1%
2025 BOS 0.0% (0) 45.5% (1) 25.0% (1) 0.0% (0) - - 33.3% (1) - - 38.5% 25.0%
SP MLB Percentile 98 (-) 92 (47) 38 (65) 98 (-) - - 29 (-) - - 93.2% 30.1%
SP MLB AVG 27.0% (14) 26.1% (5) 26.9% (7) 29.0% (12) 27.6% (10) 30.6% (8) 22.7% (10) 24.4% (14) - (-) 27.3% 27.7%
Career 24.9% (31) 42.1% (3) 35.7% (3) 33.6% (18) - 100.0% (0) 23.3% (9) - - 25.9% 133.9%

Robert Stock 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
2018 SD - - - - - - - - 13.3% - - - - -
2019 SD - - - - - - - - 10.9% - - - - -
2020 BOS 60.5% 18.4% 13.2% 7.9% 39.5% 21.1% 50.0% 28.9% 16.2% 60.5% 28.9% 5.3% 5.3% 39.5%
2021 CHC/NYM 50.0% 19.2% 15.4% 15.4% 38.5% 53.8% 26.9% 19.2% 13.7% 53.9% 26.9% 3.8% 15.4% 46.2%
2025 BOS 62.5% 0.0% 25.0% 12.5% 25.0% 25.0% 62.5% 12.5% 3.4% 50.0% 50.0% 0.0% 0.0% 50.0%
SP MLB Percentile 90 96 51 68 79 8 97 9 1 13 1 75 77 13
SP MLB AVG 43.1% 22.0% 24.7% 10.2% 35.7% 42.2% 32.7% 25.2% 18.0% 60.0% 24.5% 7.1% 8.3% 40.2%
Career 56.9% 16.7% 15.3% 11.1% 37.5% 33.3% 43.1% 23.6% 13.3% 56.9% 30.6% 4.2% 8.3% 14.3%

Robert Stock 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%
2018 SD .247 .276 .324 .330 - - - - - - - - - -
2019 SD .298 .386 .400 .438 - - - - - - - - - -
2020 BOS .320 .369 .432 .432 .280 .355 .362 .386 90.6 90.1 6.1 0.0% 39.5% 24.2%
2021 CHC/NYM .286 .433 .304 .385 .285 .432 .323 .481 91.3 100.7 11.1 75.0% 46.2% 26.7%
2025 BOS .375 .375 .375 .375 .390 .423 .390 .389 91.5 77.8 17.1 0.0% 50.0% 44.4%
SP MLB Percentile 10 30 18 27 5 15 10 39 20 95 33 62 13 7
SP MLB AVG .249 .325 .289 .322 .250 .333 .287 .381 89.2 90.7 13.6 19.2% 40.2% 27.7%
Career .276 .342 .354 .372 .186 .324 .351 .430 91.0 91.7 9.1 54.5% 14.3% 9.2%

Robert Stock 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
2018 SD - 63.7% 42.9% - 25.7% 13.3% 74.3% - - 20.9% 11.0% 31.9% 18.6% 57.6% 0.54 -
2019 SD - 55.0% 36.7% - 32.1% 10.9% 67.9% - - 18.3% 11.8% 30.1% 14.0% 48.9% 0.42 -
2020 BOS 42.3% 55.7% 41.9% 20.5% 25.5% 16.2% 74.5% 85.5% 46.7% 13.8% 10.7% 24.5% 15.0% 49.4% 0.30 43.9%
2021 CHC/NYM 42.9% 57.1% 39.9% 22.9% 26.9% 13.7% 73.1% 80.0% 59.1% 17.3% 10.7% 28.0% 15.5% 51.2% 0.39 42.9%
2025 BOS 55.2% 62.1% 41.4% 15.4% 25.0% 3.4% 75.0% 70.0% 100.0% 20.7% 10.3% 31.0% 27.6% 51.7% 0.31 34.5%
SP MLB Percentile 94 41 16 3 45 1 45 95 0 86 36 69 98 14 15 5
SP MLB AVG 46.6% 63.3% 47.0% 29.5% 24.0% 18.0% 76.1% 84.8% 58.8% 16.3% 11.3% 27.6% 17.7% 57.5% 0.46 49.2%
Career 15.1% 59.7% 41.1% 21.2% 26.8% 13.3% 73.2% 82.4% 53.7% 18.6% 11.0% 29.6% 16.8% 53.5% 0.45 54.9%

Robert Stock Approach › Locations

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Year Team Zone% aLoc% x-mLoc% gLoc% hiLoc% y-mLoc% loLoc% iLoc% oLoc% mmLoc%
2018 SD - - - - - - - - - -
2019 SD - - - - - - - - - -
2020 BOS 42.3% 26.9% 23.7% 49.4% 34.8% 19.0% 46.2% 30.4% 45.8% 6.3%
2021 CHC/NYM 42.9% 23.2% 23.8% 53.0% 44.6% 22.6% 32.7% 35.7% 40.5% 4.8%
2025 BOS 55.2% 34.5% 24.1% 41.4% 31.0% 37.9% 31.0% 48.3% 27.6% 6.9%
SP MLB Percentile 94 50 63 59 51 1 11 99 1 55
SP MLB AVG 46.6% 35.6% 26.4% 38.0% 30.9% 24.5% 44.5% 28.5% 45.1% 6.6%
Career 15.1% 26.0% 23.8% 50.2% 38.2% 21.6% 40.2% 33.6% 42.7% 5.8%

Robert Stock Approach › Counts

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Year Team Early% Behind% 2-Str% Early BIP% F-Str% TF-Str% ECS% 2-Str O-Sw% PAR%
2018 SD 60.1% 13.5% 26.8% 18.0% 62.7% 48.8% 24.0% - 23.3%
2019 SD 59.0% 17.0% 24.0% 6.7% 41.1% 37.5% 25.2% - 27.3%
2020 BOS 56.5% 18.6% 24.9% 11.9% 53.2% 46.8% 16.8% 20.6% 22.2%
2021 CHC/NYM 60.1% 15.5% 24.4% 14.9% 55.6% 48.9% 21.8% 19.5% 22.0%
2025 BOS 75.9% 10.3% 13.8% 27.3% 55.6% 55.6% 22.7% - 0.0%
SP MLB Percentile 99 64 1 99 31 76 62 - 0
SP MLB AVG 58.4% 12.0% 29.7% 15.2% 61.4% 50.2% 21.3% 24.3% 18.1%
Career 59.5% 15.3% 25.3% 14.7% 56.2% 46.7% 22.6% 6.4% 23.3%

Robert Stock PLV

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Year Team P PLV QP% AP% BP% Q-BP% MTK% HP HL PLA
2018 SD 609 - - - - - - - - -
2019 SD 229 - - - - - - - - -
2020 BOS 253 5.20 52.2% 11.1% 36.8% 15.4% 0.4% 5.5 +10 3.18
2021 CHC/NYM 168 4.46 37.0% 17.0% 46.0% -9.0% 4.0% 4.7 +4 3.66
2025 BOS 29 4.84 48.3% 20.7% 31.0% 17.2% 0.0% 0.4 +1 3.31
SP MLB Percentile 5 16 42 92 81 81 95 50 34 44
SP MLB AVG 384 5.01 46.1% 18.5% 35.4% 10.6% 5.7% - +2 3.24
Career 1,288 4.98 47.9% 13.4% 38.7% 9.2% 1.3% 10.6 +15 1.10
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