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Relief Pitcher · Boston Red Sox

Greg Weissert

RHP · Throws Right · Age 31Reliever

ERA

3.79

FIP

–

35.2

W-L

1-2

WHIP

1.21

22.1

BB%

8.1

GB%

–

K/9

8.3

HR/9

1.3

Drafted by the New York Yankees in 2016 (round 18), he was acquired by the Boston Red Sox via trade from the New York Yankees in December 2023. He made his MLB debut on August 25, 2022.Facts: MLB StatsAPI (people · transactions)

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Sinker

SI · lead pitch

31% of pitches · .321 xwOBA allowed · 215 BIP · where it goes, what it costs

Pitcher Locations

where he throws it · catcher’s view

Rare 0% · Common 10% · Very common 20%+

xwOBA Allowed

damage done by zone · all batters

Cold .200 · Avg .310 · Hot .500+

Expected Damage

locations × damage zones

Low risk · Average · High-risk zone

Sinker (31% usage) has allowed .321 xwOBA over 215 balls in play — his most-used pitch.

Arsenal

usage × whiff, ranked

7 pitch types · 2,720-pitch sample · 2026/2025/2024 blend, weighted 4/3/1

Sinker SI

31% usage · 12% whiff · .321 xwOBA · 93.8 mph

Four-Seam Fastball FF

30% usage · 20% whiff · .239 xwOBA · 93.7 mph

Sweeper ST

15% usage · 31% whiff · .311 xwOBA · 81.6 mph

Slider SL

11% usage · 24% whiff · .396 xwOBA · 85.1 mph

Changeup CH

10% usage · 27% whiff · .236 xwOBA · 85.4 mph

Curveball CU

3% usage · .291 xwOBA

Unknown UN

1% usage

Whiff% Trend

last 8 outings · by pitch · min 5 swings per point

SinkerFour-Seam FastballSweeper

Hand Splits

K% + xwOBA allowed by batter side · 2026/2025/2024 blend, weighted 4/3/1

Split	K%	xwOBA	Sample
vs. LHB	16.6	.312	268
vs. RHB	24.4	.271	409

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Market lines

current pick’em lines by book · updates through the day

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DFS picks

today’s picks for this pitcher, probability-sorted · graded nightly

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