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Relief Pitcher · Boston Red Sox

Justin Slaten

RHP · Throws Right · Age 28Reliever
ERA
4.60
FIP
–
IP
31.1
W-L
2-4
WHIP
1.37
K%
28.5
BB%
5.8
GB%
–
K/9
11.2
HR/9
1.1
Drafted by the Texas Rangers in 2019 (round 3), he was acquired by the Boston Red Sox via trade from the New York Mets in December 2023. He made his MLB debut on March 30, 2024.Facts: MLB StatsAPI (people · transactions)
No scheduled start today. The model projection and lineup matchup appear on start days.

Cutter

FC · lead pitch

39% of pitches · .353 xwOBA allowed · 172 BIP · where it goes, what it costs

Pitcher Locations
where he throws it · catcher’s view
2%2%3%1%0%2%5%9%3%1%3%10%17%13%3%1%2%4%4%1%0%1%7%5%3%
Rare 0% · Common 10% · Very common 20%+
xwOBA Allowed
damage done by zone · all batters
––.655.000––.368.237.795.000.691.331.357.432.215–.105.379.243.000––.042.117.493
Cold .200 · Avg .310 · Hot .500+
Expected Damage
locations × damage zones
––.018.000––.017.022.021.000.021.033.060.055.005–.002.016.010.000––.003.006.016
Low risk · Average · High-risk zone
Cutter (39% usage) has allowed .353 xwOBA over 172 balls in play — his most-used pitch.

Arsenal

usage × whiff, ranked

5 pitch types · 1,830-pitch sample · 2026/2025/2024 blend, weighted 4/3/1

Cutter FC
39% usage · 19% whiff · .353 xwOBA · 93.4 mph
Four-Seam Fastball FF
30% usage · 21% whiff · .246 xwOBA · 96.5 mph
Sweeper ST
16% usage · 38% whiff · .212 xwOBA · 85.9 mph
Curveball CU
9% usage · 31% whiff · .277 xwOBA
Sinker SI
5% usage · 22% whiff · .254 xwOBA · 97.2 mph
Hand Splits
K% + xwOBA allowed by batter side · 2026/2025/2024 blend, weighted 4/3/1
SplitK%xwOBASample
vs. LHB25.5 .264 229
vs. RHB23 .297 255
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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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