Relief Pitcher · Tampa Bay Rays
Ben Williamson
ERA
3.60
FIP
–
IP
5.0
W-L
0-0
WHIP
1.20
K%
0.0
BB%
4.8
GB%
–
K/9
0.0
HR/9
1.8
Drafted by the Seattle Mariners in 2023 (round 2), he was acquired by the Tampa Bay Rays via trade from the Seattle Mariners in February 2026. He made his MLB debut on April 15, 2025.Facts: MLB StatsAPI (people · transactions)
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Slider
SL · lead pitch58% of pitches · .506 xwOBA allowed · 13 BIP · where it goes, what it costs
Pitcher Locations
where he throws it · catcher’s view
Rare 0% · Common 10% · Very common 20%+
Slider (58% usage) has allowed .506 xwOBA over 13 balls in play — his most-used pitch.
Arsenal
usage × whiff, ranked2 pitch types · 50-pitch sample · 2026 season
Whiff% Trend
last 5 outings · by pitch · min 5 swings per point
SliderEephus
Hand Splits
K% + xwOBA allowed by batter side · 2026 season
| Split | K% | xwOBA | Sample |
|---|---|---|---|
| vs. LHB | – | – | 9 |
| vs. RHB | – | – | 12 |
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DFS picks
today’s picks for this pitcher, probability-sorted · graded nightly
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