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Relief Pitcher · Athletics

Geoff Hartlieb

RHP · Throws Right · Age 32Reliever
ERA
6.08
FIP
–
IP
13.1
W-L
1-1
WHIP
1.95
K%
9.4
BB%
14.1
GB%
–
K/9
4.0
HR/9
0.7
Drafted by the Pittsburgh Pirates in 2016 (round 29), he was signed by the Athletics in free agency in November 2025. He made his MLB debut on May 18, 2019.Facts: MLB StatsAPI (people · transactions)
No scheduled start today. The model projection and lineup matchup appear on start days.

Slider

SL · lead pitch

40% of pitches · .401 xwOBA allowed · 31 BIP · where it goes, what it costs

Pitcher Locations
where he throws it · catcher’s view
1%2%0%0%0%3%2%2%0%0%4%9%9%12%3%1%1%11%3%4%1%2%5%14%12%
Rare 0% · Common 10% · Very common 20%+
xwOBA Allowed
damage done by zone · all batters
–––––––.400––.043.798.272.550.147––.406–.000–––.209.296
Cold .200 · Avg .310 · Hot .500+
Expected Damage
locations × damage zones
–––––––.010––.002.069.025.067.004––.045–.000–––.030.035
Low risk · Average · High-risk zone
Slider (40% usage) has allowed .401 xwOBA over 31 balls in play — his most-used pitch.

Arsenal

usage × whiff, ranked

4 pitch types · 409-pitch sample · 2026/2025/2024 blend, weighted 4/3/1

Slider SL
40% usage · 36% whiff · .401 xwOBA · 84.3 mph
Four-Seam Fastball FF
31% usage · 16% whiff · .351 xwOBA · 94.8 mph
Sinker SI
16% usage · 22% whiff · .440 xwOBA
Cutter FC
13% usage · 13% whiff · .293 xwOBA · 90.9 mph
Whiff% Trend
last 6 outings · by pitch · min 5 swings per point
01020304050603/236/206/256/276/307/19
SliderFour-Seam FastballSinker
Hand Splits
K% + xwOBA allowed by batter side · 2026/2025/2024 blend, weighted 4/3/1
SplitK%xwOBASample
vs. LHB6.7 .475 54
vs. RHB20.1 .271 59
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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