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Relief Pitcher · Athletics

Geoff Hartlieb

RHP · Throws Right · Age 32Reliever
ERA
4.82
FIP
–
IP
28.0
W-L
2-1
WHIP
1.57
K%
17.7
BB%
11.3
GB%
–
K/9
7.1
HR/9
0.3
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 · .274 xwOBA allowed · 57 BIP · where it goes, what it costs

Pitcher Locations
where he throws it · catcher’s view
1%1%0%0%0%4%1%4%3%1%3%5%9%11%5%1%1%9%6%5%1%2%6%14%9%
Rare 0% · Common 10% · Very common 20%+
xwOBA Allowed
damage done by zone · all batters
–––––––.157––.043.798.320.395.223–.000.314–.000–.114.028.091.353
Cold .200 · Avg .310 · Hot .500+
Expected Damage
locations × damage zones
–––––––.006––.001.042.028.043.012–.000.027–.000–.003.002.013.031
Low risk · Average · High-risk zone
Slider (40% usage) has allowed .274 xwOBA over 57 balls in play — his most-used pitch.

Arsenal

usage × whiff, ranked

4 pitch types · 627-pitch sample · 2026/2025/2024 blend, weighted 4/3/1

Slider SL
40% usage · 42% whiff · .274 xwOBA · 84.7 mph
Four-Seam Fastball FF
30% usage · 16% whiff · .348 xwOBA · 95.2 mph
Sinker SI
16% usage · 22% whiff · .399 xwOBA · 93.9 mph
Cutter FC
14% usage · 10% whiff · .336 xwOBA · 91.3 mph
Whiff% Trend
last 8 outings · by pitch · min 5 swings per point
0102030405060709/59/89/139/179/199/239/259/27
SliderFour-Seam FastballSinker
Hand Splits
K% + xwOBA allowed by batter side · 2026/2025/2024 blend, weighted 4/3/1
SplitK%xwOBASample
vs. LHB18.8 .415 78
vs. RHB19.8 .262 95
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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