HOU @ ATHFinal 9-0, Sep 27, 2026
IP 1.2, H 3, R 1, ER 1, BB 1, K 1, HR 0, PC-ST 27-16, ERA 4.82, PC 27
Geoff Hartlieb is a relief pitcher for the Athletics in MLB, and he made his MLB debut on May 18, 2019, with the Pittsburgh Pirates.
Updated
About Geoff Hartlieb
Born on December 9, 1993, in Highland, Illinois, United States, Geoff Hartlieb is a relief pitcher for the Athletics and wears number 31. He bats right-handed and throws right-handed. He played college baseball for the Quincy Hawks and for the Lindenwood Lions, and he made his MLB debut on May 18, 2019, with the Pittsburgh Pirates.
Agatha Research DeskUpdated Oct 5, 2026How he is doing now
Athletics64-982026 regular season
Injury status
No injury reports on file.
Game log
HOU @ ATHFinal 5-6, Sep 25, 2026
IP 0.1, H 1, R 3, ER 3, BB 2, K 1, HR 0, PC-ST 17-7, ERA 4.78, PC 17
LAA @ ATHFinal 3-7, Sep 23, 2026
IP 1.2, H 1, R 0, ER 0, BB 1, K 2, HR 0, PC-ST 24-15, ERA 3.81, PC 24
ATH @ CLEFinal 6-12, Sep 19, 2026
IP 1.0, H 2, R 1, ER 1, BB 0, K 2, HR 0, PC-ST 16-12, ERA 4.07, PC 16
Show all 10 games
ATH @ TBFinal 1-10, Sep 17, 2026
IP 1.2, H 0, R 0, ER 0, BB 0, K 2, HR 0, PC-ST 18-12, ERA 3.86, PC 18
SEA @ ATHFinal 7-8, Sep 13, 2026
IP 2.0, H 1, R 0, ER 0, BB 0, K 2, HR 0, PC-ST 25-20, ERA 4.15, PC 25
TOR @ ATHFinal 4-2, Sep 8, 2026
IP 2.0, H 1, R 0, ER 0, BB 1, K 2, HR 0, PC-ST 30-18, ERA 4.58, PC 30
ATH @ SEAFinal 6-2, Sep 5, 2026
IP 1.0, H 2, R 1, ER 1, BB 0, K 2, HR 0, PC-ST 22-15, ERA 5.09, PC 22
ATH @ SEAFinal 7-6, Sep 4, 2026
IP 1.1, H 0, R 0, ER 0, BB 0, K 1, HR 0, PC-ST 13-11, ERA 4.86, PC 13
ATH @ TEXFinal 9-2, Sep 2, 2026
IP 2.0, H 2, R 0, ER 0, BB 0, K 1, HR 0, PC-ST 26-18, ERA 5.28, PC 26
Box score lines from ESPN.
Sources and updates
Stats, scores and injury reports come from Agatha's own records: MLB's own box scores, its transactions and ESPN's injury reports.
Updated Oct 5, 2026, 11:16 PM ET. Results and form refresh after every game; biography facts are checked weekly.