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Relief Pitcher · Seattle Mariners

Michael Rucker

RHP · Throws Right · Age 32Reliever
ERA
6.23
FIP
–
IP
8.2
W-L
0-2
WHIP
1.50
K%
28.2
BB%
12.8
GB%
–
K/9
11.4
HR/9
2.1
Drafted by the Chicago Cubs in 2016 (round 11), he was signed by the Seattle Mariners in free agency in January 2026. He made his MLB debut on July 30, 2021.Facts: MLB StatsAPI (people · transactions)
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Four-Seam Fastball

FF · lead pitch

36% of pitches · .405 xwOBA allowed · 18 BIP · where it goes, what it costs

Pitcher Locations
where he throws it · catcher’s view
2%8%11%2%2%2%11%6%3%5%5%6%14%13%2%0%0%2%3%0%0%0%0%3%2%
Rare 0% · Common 10% · Very common 20%+
Four-Seam Fastball (36% usage) has allowed .405 xwOBA over 18 balls in play — his most-used pitch.

Arsenal

usage × whiff, ranked

5 pitch types · 175-pitch sample · 2026 season

Four-Seam Fastball FF
36% usage · 24% whiff · .405 xwOBA · 95.7 mph
Curveball CU
32% usage · 48% whiff · .152 xwOBA · 82.2 mph
Cutter FC
17% usage · .188 xwOBA · 90.5 mph
Sinker SI
11% usage · .377 xwOBA
Slider SL
5% usage · .612 xwOBA
Whiff% Trend
last 8 outings · by pitch · min 5 swings per point
01020304050607080901006/146/176/206/246/286/307/37/7
Four-Seam FastballCurveballCutter
Hand Splits
K% + xwOBA allowed by batter side · 2026 season
SplitK%xwOBASample
vs. LHB– – 24
vs. RHB– – 14
Live · client-hydrated

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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