RunsLeft › Pitchers › Michael Rucker
Relief Pitcher · Seattle Mariners

Michael Rucker

RHP · Throws Right · Age 32Reliever
ERA
4.30
FIP
–
IP
29.1
W-L
1-4
WHIP
1.19
K%
28.5
BB%
8.1
GB%
–
K/9
10.7
HR/9
0.9
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)
No scheduled start today. The model projection and lineup matchup appear on start days.

Four-Seam Fastball

FF · lead pitch

33% of pitches · .367 xwOBA allowed · 34 BIP · where it goes, what it costs

Pitcher Locations
where he throws it · catcher’s view
4%9%5%3%1%5%9%8%7%4%4%9%16%7%3%0%1%2%1%0%0%0%0%1%1%
Rare 0% · Common 10% · Very common 20%+
xwOBA Allowed
damage done by zone · all batters
.366.006.000.000––.444.420.114.700–.591.506.463.700–––.700––––––
Cold .200 · Avg .310 · Hot .500+
Expected Damage
locations × damage zones
.013.001.000.000––.042.034.007.025–.051.080.033.020–––.010––––––
Low risk · Average · High-risk zone
Four-Seam Fastball (33% usage) has allowed .367 xwOBA over 34 balls in play — his most-used pitch.

Arsenal

usage × whiff, ranked

5 pitch types · 444-pitch sample · 2026 season

Four-Seam Fastball FF
33% usage · 22% whiff · .367 xwOBA · 96.1 mph
Curveball CU
32% usage · 36% whiff · .177 xwOBA · 82.3 mph
Cutter FC
19% usage · 12% whiff · .339 xwOBA · 90.0 mph
Sinker SI
12% usage · 25% whiff · .286 xwOBA · 95.5 mph
Slider SL
3% usage · .612 xwOBA
Whiff% Trend
last 8 outings · by pitch · min 5 swings per point
0102030405060707/318/48/68/88/98/118/148/20
Four-Seam FastballCurveballCutter
Hand Splits
K% + xwOBA allowed by batter side · 2026 season
SplitK%xwOBASample
vs. LHB25 .331 60
vs. RHB28.9 .237 43
Live · client-hydrated

Market lines

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

Live lines load in your browser.
Live · client-hydrated

DFS picks

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

Today’s picks load in your browser.