MLB Single-Season (Post 1900) Pitching Leaders - Earned Run Average | |||||||||||||||
PLAYER | YR | G | GS | CG | SH | IP | H | ER | BB | SO | W | L | SV | ERA | |
1 | Dutch Leonard | 1914 | 36 | 25 | 17 | 7 | 224.2 | 139 | 24 | 60 | 176 | 19 | 5 | 3 | 0.96 |
2 | Mordecai Brown | 1906 | 36 | 32 | 27 | 9 | 277.1 | 198 | 32 | 61 | 144 | 26 | 6 | 3 | 1.04 |
3 | Bob Gibson | 1968 | 34 | 34 | 28 | 13 | 304.2 | 198 | 38 | 62 | 268 | 22 | 9 | 0 | 1.12 |
4 | Christy Mathewson | 1909 | 37 | 33 | 26 | 8 | 275.1 | 192 | 35 | 36 | 149 | 25 | 6 | 2 | 1.14 |
Walter Johnson | 1913 | 48 | 36 | 29 | 11 | 346.0 | 232 | 44 | 38 | 243 | 36 | 7 | 2 | 1.14 | |
6 | Jack Pfiester | 1907 | 30 | 22 | 13 | 3 | 195.0 | 143 | 25 | 48 | 90 | 14 | 9 | 0 | 1.15 |
7 | Addie Joss | 1908 | 42 | 35 | 29 | 9 | 325.0 | 232 | 42 | 30 | 130 | 24 | 11 | 2 | 1.16 |
8 | Carl Lundgren | 1907 | 28 | 25 | 21 | 7 | 207.0 | 130 | 27 | 92 | 84 | 18 | 7 | 0 | 1.17 |
9 | Pete Alexander | 1915 | 49 | 42 | 36 | 12 | 376.1 | 253 | 51 | 64 | 241 | 31 | 10 | 3 | 1.22 |
10 | Cy Young | 1908 | 36 | 33 | 30 | 3 | 299.0 | 230 | 42 | 37 | 150 | 21 | 11 | 2 | 1.26 |
PLAYER | YR | G | GS | CG | SH | IP | H | ER | BB | SO | W | L | SV | ERA | |
11 | Ed Walsh | 1910 | 45 | 36 | 33 | 7 | 369.2 | 242 | 52 | 61 | 258 | 18 | 20 | 5 | 1.27 |
Walter Johnson | 1918 | 39 | 29 | 29 | 8 | 326.0 | 241 | 46 | 70 | 162 | 23 | 13 | 3 | 1.27 | |
13 | Christy Mathewson | 1905 | 43 | 37 | 32 | 8 | 338.2 | 252 | 48 | 64 | 206 | 31 | 9 | 2 | 1.28 |
14 | Jack Coombs | 1910 | 45 | 38 | 35 | 13 | 353.0 | 248 | 51 | 115 | 224 | 31 | 9 | 1 | 1.30 |
15 | Mordecai Brown | 1909 | 50 | 34 | 32 | 8 | 342.2 | 246 | 50 | 53 | 172 | 27 | 9 | 7 | 1.31 |
16 | Jack Taylor | 1902 | 36 | 33 | 33 | 7 | 324.2 | 271 | 48 | 43 | 83 | 23 | 11 | 1 | 1.33 |
17 | Walter Johnson | 1910 | 45 | 42 | 38 | 8 | 370.0 | 262 | 56 | 76 | 313 | 25 | 17 | 1 | 1.36 |
18 | Walter Johnson | 1912 | 50 | 37 | 34 | 7 | 369.0 | 259 | 57 | 76 | 303 | 33 | 12 | 2 | 1.39 |
Mordecai Brown | 1907 | 34 | 27 | 20 | 6 | 233.0 | 180 | 36 | 40 | 107 | 20 | 6 | 3 | 1.39 | |
Harry Krause | 1909 | 32 | 21 | 16 | 7 | 213.0 | 151 | 33 | 49 | 139 | 18 | 8 | 0 | 1.39 | |
PLAYER | YR | G | GS | CG | SH | IP | H | ER | BB | SO | W | L | SV | ERA | |
21 | Ed Walsh | 1909 | 31 | 28 | 20 | 8 | 230.1 | 166 | 36 | 50 | 127 | 15 | 11 | 2 | 1.41 |
22 | Ed Walsh | 1908 | 66 | 49 | 42 | 11 | 464.0 | 343 | 73 | 56 | 269 | 40 | 15 | 6 | 1.42 |
Ed Reulbach | 1905 | 34 | 29 | 28 | 5 | 291.2 | 208 | 46 | 73 | 152 | 18 | 14 | 1 | 1.42 | |
Orval Overall | 1909 | 38 | 32 | 23 | 9 | 285.0 | 204 | 45 | 80 | 205 | 20 | 11 | 3 | 1.42 | |
25 | Christy Mathewson | 1908 | 56 | 44 | 34 | 11 | 390.2 | 285 | 62 | 42 | 259 | 37 | 11 | 5 | 1.43 |
26 | Fred Anderson | 1917 | 38 | 18 | 8 | 1 | 162.0 | 122 | 26 | 34 | 69 | 8 | 8 | 3 | 1.44 |
27 | Mordecai Brown | 1908 | 44 | 31 | 27 | 9 | 312.1 | 214 | 51 | 49 | 123 | 29 | 9 | 5 | 1.47 |
28 | Rube Waddell | 1905 | 46 | 34 | 27 | 7 | 328.2 | 231 | 54 | 90 | 287 | 27 | 10 | 0 | 1.48 |
29 | Joe Wood | 1915 | 25 | 16 | 10 | 3 | 157.1 | 120 | 26 | 44 | 63 | 15 | 5 | 2 | 1.49 |
Walter Johnson | 1919 | 39 | 29 | 27 | 7 | 290.1 | 235 | 48 | 51 | 147 | 20 | 14 | 2 | 1.49 | |
PLAYER | YR | G | GS | CG | SH | IP | H | ER | BB | SO | W | L | SV | ERA | |
31 | Jack Pfiester | 1906 | 31 | 29 | 20 | 4 | 250.2 | 173 | 42 | 63 | 153 | 20 | 8 | 0 | 1.51 |
32 | Doc White | 1906 | 28 | 24 | 20 | 7 | 219.1 | 160 | 37 | 38 | 95 | 18 | 6 | 0 | 1.52 |
33 | George McQuillan | 1908 | 48 | 42 | 32 | 7 | 359.2 | 263 | 61 | 91 | 114 | 23 | 17 | 2 | 1.53 |
Dwight Gooden | 1985 | 35 | 35 | 16 | 8 | 276.2 | 198 | 47 | 69 | 268 | 24 | 4 | 0 | 1.53 | |
Eddie Cicotte | 1917 | 49 | 35 | 29 | 7 | 346.2 | 246 | 59 | 70 | 150 | 28 | 12 | 4 | 1.53 | |
36 | Cy Morgan | 1910 | 36 | 34 | 23 | 3 | 290.2 | 214 | 50 | 117 | 134 | 18 | 12 | 0 | 1.55 |
Pete Alexander | 1916 | 48 | 45 | 38 | 16 | 389.0 | 323 | 67 | 50 | 167 | 33 | 12 | 3 | 1.55 | |
Walter Johnson | 1915 | 47 | 39 | 35 | 7 | 336.2 | 258 | 58 | 56 | 203 | 27 | 13 | 4 | 1.55 | |
39 | Greg Maddux | 1994 | 25 | 25 | 10 | 3 | 202.0 | 150 | 35 | 31 | 156 | 16 | 6 | 0 | 1.56 |
Howie Camnitz | 1908 | 38 | 26 | 17 | 3 | 236.2 | 182 | 41 | 69 | 118 | 16 | 9 | 2 | 1.56 | |
PLAYER | YR | G | GS | CG | SH | IP | H | ER | BB | SO | W | L | SV | ERA | |
41 | Fred Toney | 1915 | 36 | 23 | 18 | 6 | 222.2 | 160 | 39 | 73 | 108 | 17 | 6 | 2 | 1.58 |
Eddie Cicotte | 1913 | 41 | 30 | 18 | 3 | 268.0 | 224 | 47 | 73 | 121 | 18 | 12 | 1 | 1.58 | |
Rube Marquard | 1916 | 36 | 20 | 15 | 2 | 205.0 | 169 | 36 | 38 | 107 | 13 | 6 | 5 | 1.58 | |
Chief Bender | 1910 | 30 | 28 | 25 | 3 | 250.0 | 182 | 44 | 47 | 155 | 23 | 5 | 0 | 1.58 | |
45 | Barney Pelty | 1906 | 34 | 30 | 25 | 4 | 260.2 | 189 | 46 | 59 | 92 | 16 | 11 | 2 | 1.59 |
Addie Joss | 1904 | 25 | 24 | 20 | 5 | 192.1 | 160 | 34 | 30 | 83 | 14 | 10 | 0 | 1.59 | |
47 | George McQuillan | 1910 | 24 | 17 | 13 | 3 | 152.1 | 109 | 27 | 50 | 71 | 9 | 6 | 1 | 1.60 |
Ed Walsh | 1907 | 56 | 46 | 37 | 5 | 422.1 | 341 | 75 | 87 | 206 | 24 | 18 | 4 | 1.60 | |
Luis Tiant | 1968 | 34 | 32 | 19 | 9 | 258.1 | 152 | 46 | 73 | 264 | 21 | 9 | 0 | 1.60 | |
50 | Joe McGinnity | 1904 | 51 | 44 | 38 | 9 | 408.0 | 307 | 73 | 86 | 144 | 35 | 8 | 5 | 1.61 |