Relief Pitcher · Boston Red Sox
Justin Slaten
ERA
6.10
FIP
–
IP
20.2
W-L
1-4
WHIP
1.60
K%
29.8
BB%
5.3
GB%
–
K/9
12.2
HR/9
1.7
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)
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Cutter
FC · lead pitch39% of pitches · .347 xwOBA allowed · 160 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
Cutter (39% usage) has allowed .347 xwOBA over 160 balls in play — his most-used pitch.
Arsenal
usage × whiff, ranked5 pitch types · 1,711-pitch sample · 2026/2025/2024 blend, weighted 4/3/1
Whiff% Trend
last 8 outings · by pitch · min 5 swings per point
CutterFour-Seam FastballSweeper
Hand Splits
K% + xwOBA allowed by batter side · 2026/2025/2024 blend, weighted 4/3/1
| Split | K% | xwOBA | Sample |
|---|---|---|---|
| vs. LHB | 25.4 | .272 | 211 |
| vs. RHB | 22.6 | .298 | 240 |
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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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