Between October 14, 2025 and October 19, 2025, the Seattle Mariners have the worst ERA by a team, with an ERA of 7.67.
| TEAM | ERA | G | W% | W | L | SO | SHO | SV | IP | H | ER | R | HR | BB | HBP | IBB | TBF | WP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | H/9 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | Mariners | 7.67 | 3 | .333 | 1 | 2 | 19 | 0 | 0 | 27.0 | 36 | 23 | 23 | 7 | 11 | 1 | 3 | 126 | 4 | 6.33 | 3.67 | 1.73 | 2.33 | 15.1 | 8.7 | 1.74 | .330 | 7.67 | 12.00 |
| 2 |  | Brewers | 4.32 | 3 | .000 | 0 | 3 | 33 | 0 | 0 | 25.0 | 25 | 12 | 13 | 5 | 9 | 2 | 1 | 109 | 0 | 11.88 | 3.24 | 3.67 | 1.80 | 30.3 | 8.3 | 1.36 | .333 | 4.68 | 9.00 |
| 3 |  | Blue Jays | 4.15 | 3 | .667 | 2 | 1 | 24 | 0 | 0 | 26.0 | 18 | 12 | 12 | 7 | 12 | 1 | 0 | 105 | 2 | 8.31 | 4.15 | 2.00 | 2.42 | 22.9 | 11.4 | 1.15 | .180 | 4.15 | 6.23 |
| 4 |  | Dodgers | 1.00 | 3 | 1.000 | 3 | 0 | 30 | 0 | 1 | 27.0 | 12 | 3 | 3 | 1 | 8 | 0 | 0 | 100 | 0 | 10.00 | 2.67 | 3.75 | 0.33 | 30.0 | 8.0 | 0.74 | .180 | 1.00 | 4.00 |
StatMuse has team, game-level data for ERA going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.
More Mariners Stats
Team Rankings
HR
238
3rd
R
766
9th
SO
1,426
7th
ERA
3.87
13th
Mariners 
Astros 
Rangers 
Athletics 
Angels 
TOR 
Phillies 
Mets 
Brewers 
Cubs 
Dodgers 
Padres 
Yankees 
Guardians 
Tigers 
PIT 
CIN 
STL 
BAL 
CWS 
SFG 
AZ 
