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Jack Anderson

#77 - Relief Pitcher

Boston Red Sox

Bats / Throws Right / Right
Date of Birth 11/23/1999 (26)
Height, Weight 6'3", 197 lb
Hometown Tampa, FL

2026 Season Stats

Needs more playing time to qualify
MLB Rank MLB Average
Sv IP ERA WHIP K% BB%
0 3.0 3.00 0.67 36.4% 9.1%
- 0
Sv
- 6.0
IP
- 5.48
ERA
- 1.55
WHIP
- 21.9%
K%
- 11.1%
BB%
FB MPH SwStr% CSW% Str-ICR MTK% PLV PLA
90.8 15.4% 28.8% 61.5% 3.8% 4.89 3.54
- 94.3
FB MPH
- 11.8%
SwStr%
- 28.6%
CSW%
- 49.4%
Str-ICR
- 4.0%
MTK%
- 4.97
PLV
- 3.79
PLA

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Jack Anderson 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
2026 BOS 1 0 3.0 0-0 0 0 3.00 0.67 6.16 5.86 2.99 3.54 36.4% 9.1% 3.0 3.00 .000 50.0% 100.0% 16.7% 50.0% 15.4% 28.8% 0.65 4.89
RP MLB Percentile - - - --- - - - - - - - - - - - - - - - - - - - - -
RP MLB AVG 5 0 6.0 0-0 0 1 5.48 1.55 4.76 5.31 4.96 3.79 21.9% 11.1% 9.3 1.20 .295 17.9% 72.7% 38.4% 43.9% 11.8% 28.6% 0.48 4.97
Career 1 0 3.0 0-0 0 0 3.00 0.67 6.16 5.86 2.99 3.54 36.4% 9.1% 3.0 3.00 .000 50.0% 100.0% 16.7% 50.0% 15.4% 28.8% 0.65 4.89

Jack Anderson Repertoire

2026 All
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Jack Anderson Game Log

Jack Anderson 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
2026 BOS 1 0 3.0 0-0 0 0 0 52 34 18 11 1 0 0 0 1 4 1 0 0
RP MLB Percentile - - - --- - - - - - - - - - - - - - - - -
RP MLB AVG 5 0 6.0 0-0 0 0 1 115 72 43 29 6 4 1 0 1 7 3 0 0
Career 1 0 3.0 0-0 0 0 0 52 34 18 11 1 0 0 0 1 4 1 0 0

Jack Anderson Advanced

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Year Team K% BB% AVG SLG OPS wOBA BABIP BACON xAVG xwOBA xBABIP xwoBACON EV FB EV LA xERA
2026 BOS 36.4% 9.1% .100 .400 .582 .256 .000 .167 .242 .396 .285 .607 88.5 88.3 7.2 6.16
RP MLB Percentile - - - - - - - - - - - - - - - -
RP MLB AVG 21.9% 11.1% .245 .390 .724 .328 .295 .323 .239 .328 .284 .369 88.2 89.5 13.5 4.76
Career 36.4% 9.1% .100 .400 .582 .256 .000 .167 .242 .396 .285 .607 88.5 88.3 7.2 6.16

Jack Anderson 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%
2026 BOS 40.4% (90.8) - - 9.6% (83.1) 7.7% (79.0) 13.5% (77.6) - 28.8% (82.5) - 40.4% 59.6%
RP MLB Percentile - - - - - - - - - - -
RP MLB AVG 34.5% (94.3) 27.9% (93.9) 21.4% (89.3) 27.8% (85.5) 23.6% (82.6) 19.2% (81.0) 19.5% (86.1) 22.2% (86.4) - (-) 46.5% 53.3%
Career 40.4% (90.8) - - 9.6% (83.1) 7.7% (83.1) 13.5% (77.6) - 28.8% (82.5) - 40.4% 59.6%

Jack Anderson 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%
2026 BOS 23.8% (0) - - 40.0% (0) 50.0% (2) 14.3% (1) - 33.3% (5) - 23.8% 32.3%
RP MLB Percentile - - - - - - - - - - -
RP MLB AVG 27.1% (5) 27.2% (2) 26.6% (3) 31.7% (5) 30.5% (4) 27.9% (3) 22.8% (4) 26.7% (5) - (-) 27.8% 28.7%
Career 23.8% (0) - - 40.0% (0) 50.0% (2) 14.3% (1) - 33.3% (5) - 23.8% 32.3%

Jack Anderson 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
2026 BOS 50.0% 16.7% 33.3% 0.0% 33.3% 66.7% 0.0% 33.3% 25.0% 83.3% 0.0% 0.0% 16.7% 16.7%
RP MLB Percentile - - - - - - - - - - - - - -
RP MLB AVG 43.9% 21.4% 24.4% 10.3% 34.6% 41.9% 33.5% 24.6% 16.8% 61.8% 24.5% 5.8% 8.0% 38.4%
Career 50.0% 16.7% 33.3% 0.0% 33.3% 66.7% 0.0% 33.3% 25.0% 83.3% 0.0% 0.0% 16.7% 16.7%

Jack Anderson 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%
2026 BOS .100 .256 .000 .167 .242 .396 .285 .607 88.5 88.3 7.2 50.0% 16.7% 9.1%
RP MLB Percentile - - - - - - - - - - - - - -
RP MLB AVG .245 .328 .295 .323 .239 .328 .284 .369 88.2 89.5 13.5 17.9% 38.4% 25.3%
Career .100 .256 .000 .167 .242 .396 .285 .607 88.5 88.3 7.2 50.0% 16.7% 9.1%

Jack Anderson 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
2026 BOS 40.4% 65.4% 51.9% 41.9% 29.6% 25.0% 70.4% 85.7% 53.8% 13.5% 15.4% 28.8% 11.5% 63.5% 0.65 61.5%
RP MLB Percentile - - - - - - - - - - - - - - - -
RP MLB AVG 43.6% 62.6% 45.8% 30.4% 25.8% 16.8% 74.2% 84.1% 58.4% 16.8% 11.8% 28.6% 17.2% 57.0% 0.48 49.4%
Career 40.4% 65.4% 51.9% 41.9% 29.6% 25.0% 70.4% 85.7% 53.8% 13.5% 15.4% 28.8% 11.5% 63.5% 0.65 61.5%

Jack Anderson Approach › Locations

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Year Team Zone% aLoc% x-mLoc% gLoc% hiLoc% y-mLoc% loLoc% iLoc% oLoc% mmLoc%
2026 BOS 40.4% 32.7% 34.6% 32.7% 38.5% 21.2% 40.4% 30.8% 34.6% 7.7%
RP MLB Percentile - - - - - - - - - -
RP MLB AVG 43.6% 34.7% 26.0% 39.2% 35.9% 22.7% 41.4% 30.6% 43.3% 6.3%
Career 40.4% 32.7% 34.6% 32.7% 38.5% 21.2% 40.4% 30.8% 34.6% 7.7%

Jack Anderson Approach › Counts

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Year Team Early% Behind% 2-Str% Early BIP% F-Str% TF-Str% ECS% 2-Str O-Sw% PAR%
2026 BOS 46.2% 11.5% 42.3% 8.3% 63.6% 45.5% 20.8% 22.7% 18.2%
RP MLB Percentile - - - - - - - - -
RP MLB AVG 58.8% 13.2% 28.6% 14.0% 59.5% 49.5% 21.3% 27.0% 19.8%
Career 46.2% 11.5% 42.3% 8.3% 63.6% 45.5% 20.8% 22.7% 18.2%

Jack Anderson PLV

Hide 2026 MLB Percentile | Hide 2026 MLB Average
Year Team P PLV QP% AP% BP% Q-BP% MTK% HP HL PLA
2026 BOS 52 4.89 46.2% 21.2% 32.7% 13.5% 3.8% -0.7 -2 3.54
RP MLB Percentile - - - - - - - - - -
RP MLB AVG 115 4.97 46.2% 17.9% 36.0% 10.2% 4.0% 0.8 +1 3.79
Career 52 4.89 46.2% 21.2% 32.7% 13.5% 3.8% -0.7 -2 3.54
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