Since 1920, Warren Spahn has the best ERA by a starting pitcher when pitching at least 5000 innings, with an ERA of 3.08.
| NAME | ERA | IP | G | W | L | W% | GS | SO | CG | SHO | SV | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | H/9 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | W. Spahn | 3.08 | 5101.0 | 665 | 358 | 227 | .612 | 665 | 2,501 | 382 | 63 | 0 | 4,703 | 1,743 | 1,951 | 422 | 1,383 | 39 | 0 | 52 | 20,960 | 74 | 4.41 | 2.44 | 1.81 | 0.74 | 11.9 | 6.6 | 1.19 | .258 | 3.44 | 8.30 |
| 2 | | G. Perry | 3.10 | 5156.2 | 690 | 305 | 252 | .548 | 690 | 3,372 | 303 | 53 | 0 | 4,762 | 1,778 | 2,045 | 382 | 1,314 | 101 | 0 | 144 | 21,140 | 150 | 5.89 | 2.29 | 2.57 | 0.67 | 16.0 | 6.2 | 1.18 | .274 | 3.57 | 8.31 |
| 3 |  | G. Maddux | 3.15 | 5001.0 | 740 | 355 | 226 | .611 | 740 | 3,366 | 109 | 35 | 0 | 4,717 | 1,750 | 1,974 | 351 | 996 | 137 | 0 | 177 | 20,388 | 70 | 6.06 | 1.79 | 3.38 | 0.63 | 16.5 | 4.9 | 1.14 | .281 | 3.55 | 8.49 |
| 4 |  | N. Ryan | 3.18 | 5326.0 | 773 | 318 | 291 | .522 | 773 | 5,654 | 222 | 61 | 0 | 3,880 | 1,884 | 2,151 | 314 | 2,748 | 156 | 0 | 75 | 22,310 | 275 | 9.55 | 4.64 | 2.06 | 0.53 | 25.3 | 12.3 | 1.24 | .265 | 3.63 | 6.56 |
| 5 |  | S. Carlton | 3.20 | 5165.1 | 709 | 327 | 240 | .577 | 709 | 4,104 | 254 | 55 | 0 | 4,616 | 1,835 | 2,096 | 405 | 1,814 | 53 | 0 | 145 | 21,457 | 177 | 7.15 | 3.16 | 2.26 | 0.71 | 19.1 | 8.5 | 1.24 | .279 | 3.65 | 8.04 |
| 6 | | D. Sutton | 3.27 | 5248.1 | 756 | 321 | 253 | .559 | 756 | 3,545 | 178 | 58 | 0 | 4,670 | 1,905 | 2,095 | 469 | 1,333 | 81 | 0 | 96 | 21,500 | 110 | 6.08 | 2.29 | 2.66 | 0.80 | 16.5 | 6.2 | 1.14 | .261 | 3.59 | 8.01 |
| 7 | | P. Niekro | 3.37 | 5149.2 | 716 | 302 | 262 | .535 | 716 | 3,181 | 245 | 45 | 0 | 4,815 | 1,928 | 2,227 | 465 | 1,703 | 116 | 0 | 73 | 21,585 | 207 | 5.56 | 2.98 | 1.87 | 0.81 | 14.7 | 7.9 | 1.27 | .270 | 3.89 | 8.42 |
StatMuse has game-level data for ERA and innings pitched going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.
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HR
63
14th
R
240
23rd
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526
11th
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3.70
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