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Played on Diamonds

← Las Vegas Aviators

Pitcher · #31

Geoff Hartlieb

Bats/Throws
R/R
Height
6' 5"
Weight
240 lb
Born
1993-12-09
Birthplace
Highland, IL, USA
MLB debut
2019-05-18
Go to Spring

Pitching

Club G IP H R ER BB K BF ERA
MLB Athletics 18 28.0 30 15 15 14 22 124 4.82
AAA Las Vegas Aviators 27 48.1 49 19 18 15 53 203 3.35
Total 45 76.1 79 34 33 29 75 327 3.89

Pitching

Club G IP H R ER BB K BF ERA
AAA Las Vegas Aviators 4 4.2 6 2 2 3 9 22 3.86

Pitching

Club G IP H R ER BB K BF ERA
AAA Las Vegas Aviators 8 17.0 20 10 9 6 21 76 4.76

Pitching

Club G IP H R ER BB K BF ERA
MLB Athletics 4 8.2 11 5 5 3 3 39 5.19
AAA Las Vegas Aviators 4 12.0 10 2 2 1 11 44 1.50
Total 8 20.2 21 7 7 4 14 83 3.05

Pitching

Club G IP H R ER BB K BF ERA
MLB Athletics 4 4.2 6 4 4 6 3 25 7.71
AAA Las Vegas Aviators 4 4.0 2 1 1 1 5 15 2.25
Total 8 8.2 8 5 5 7 8 40 5.19

Pitching

Club G IP H R ER BB K BF ERA
AAA Las Vegas Aviators 7 10.2 11 4 4 4 7 46 3.38

Pitching

Club G IP H R ER BB K BF ERA
MLB Athletics 10 14.2 13 6 6 5 16 60 3.68

Pitching

Club G IP H R ER BB K BF ERA
MLB Athletics 6 3.2 10 10 9 3 3 27 22.09

13 transactions in 2026

  • Oct 29 Athletics sent RHP Geoff Hartlieb outright to Las Vegas Aviators.
  • Sep 2 Athletics selected the contract of RHP Geoff Hartlieb from Las Vegas Aviators.
  • Jul 29 Athletics sent RHP Geoff Hartlieb outright to Las Vegas Aviators.
  • Jul 27 Athletics designated RHP Geoff Hartlieb for assignment.
  • Jul 18 Athletics selected the contract of RHP Geoff Hartlieb from Las Vegas Aviators.
  • Jul 4 Athletics sent RHP Geoff Hartlieb outright to Las Vegas Aviators.
  • Jul 3 Athletics designated RHP Geoff Hartlieb for assignment.
  • Jun 20 Athletics selected the contract of RHP Geoff Hartlieb from Las Vegas Aviators.
  • Apr 18 Las Vegas Aviators activated RHP Geoff Hartlieb.
  • Apr 14 Las Vegas Aviators transferred RHP Geoff Hartlieb to the Development List.
  • Apr 9 Las Vegas Aviators activated RHP Geoff Hartlieb.
  • Mar 27 Las Vegas Aviators transferred RHP Geoff Hartlieb to the Development List.
  • Jan 28 Athletics invited non-roster RHP Geoff Hartlieb to spring training.