What is the worst team earned run average in MLB history?
| LEAGUE | ERA | G | W% | W | L | GS | SO | CG | 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 | PL | 4.23 | 1,058 | .500 | 525 | 525 | 1,058 | 2,986 | 930 | 21 | 9268.2 | 10,523 | 4,355 | 7,278 | 316 | 4,182 | 409 | 43,308 | 500 | 2.90 | 4.06 | 0.71 | 0.31 | 6.9 | 9.7 | 1.59 | .288 | 7.07 | 10.22 | ||
| 2 | AL | 3.98 | 210,233 | .501 | 104,833 | 104,612 | 210,233 | 1,121,317 | 53,332 | 8,858 | 38,114 | 1875737.1 | 1,868,980 | 829,316 | 944,297 | 166,368 | 691,582 | 55,131 | 32,593 | 8,025,864 | 57,308 | 5.38 | 3.32 | 1.62 | 0.80 | 14.0 | 8.6 | 1.37 | .284 | 4.53 | 8.97 |
| 3 | NL | 3.80 | 237,319 | .500 | 117,887 | 118,108 | 237,319 | 1,234,220 | 74,195 | 9,297 | 38,679 | 2116322.1 | 2,111,061 | 893,387 | 1,064,049 | 164,986 | 733,492 | 61,623 | 45,907 | 9,046,469 | 65,280 | 5.25 | 3.12 | 1.68 | 0.70 | 13.6 | 8.1 | 1.34 | .284 | 4.53 | 8.98 |
| 4 | AA | 3.52 | 10,078 | .500 | 4,942 | 4,942 | 10,078 | 37,107 | 9,350 | 92 | 88166.1 | 88,685 | 34,473 | 57,272 | 1,907 | 26,334 | 2,505 | 383,871 | 6,443 | 3.79 | 2.69 | 1.41 | 0.19 | 9.7 | 6.9 | 1.30 | .276 | 5.85 | 9.05 | ||
| 5 | FL | 3.12 | 2,486 | .500 | 1,220 | 1,220 | 2,486 | 9,644 | 1,457 | 214 | 162 | 22128.2 | 21,105 | 7,667 | 9,894 | 545 | 7,260 | 605 | 90,185 | 496 | 3.92 | 2.95 | 1.33 | 0.22 | 10.7 | 8.1 | 1.28 | .285 | 4.02 | 8.58 | |
| 6 | UA | 3.04 | 856 | .500 | 422 | 422 | 856 | 4,830 | 759 | 8 | 7397.0 | 7,457 | 2,501 | 4,825 | 125 | 1,134 | 31,610 | 690 | 5.88 | 1.38 | 4.26 | 0.15 | 15.3 | 3.6 | 1.16 | 5.87 | 9.07 |
Yankees 
Blue Jays 
Tigers 
Guardians 
Mariners 
Astros 
Mets 
Phillies 
Cubs 
Cardinals 
Dodgers 
Padres 
WSH 
BAL 
TBR 
MIA 
MIN 
MIL 
ATH 
SFG 
COL 
PIT 
