MLB · Athletics · RP
Geoff Hartlieb ERA
2026 season13 games
Search ResultGeoff Hartlieb — ERA13 games
Geoff Hartlieb has a 4.15 ERA this season (10 ER over 21.2 IP) — 4.50 over the last 10 games (8 ER over 16 IP).
L5
1.08
L10
4.50
SZN
4.15
Geoff Hartlieb's page — season line, the game-by-game log, tonight's matchup.