SINGLE SEASON
EARNED RUN AVERAGE
11/15/1981
League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments
Rank Player ERA YEAR Open Career Leaderboard
1 Dutch H Leonard 0.961 1914  
2 Mordecai Brown* 1.038 1906  
3 Bob Gibson 1.123 1968  
4 Christy Mathewson* 1.144 1909  
5 Walter Johnson* 1.145 1913  
6 Jack Pfiester 1.154 1907  
7 Addie Joss 1.163 1908  
8 Carl Lundgren 1.174 1907  
9 Denny Driscoll 1.209 1882  
10 Pete Alexander* 1.220 1915  
11 George Bradley 1.225 1876  
12 Cy Young* 1.264 1908  
13 Ed Walsh* 1.266 1910  
14 Walter Johnson* 1.270 1918  
15 Christy Mathewson* 1.276 1905  
16 Jack Coombs 1.300 1910  
17 Mordecai Brown* 1.313 1909  
18 Jack W Taylor 1.331 1902  
19 Walter Johnson* 1.362 1910  
20 George Bradley 1.378 1880  
21 Old Hoss Radbourn* 1.379 1884  
22 Walter Johnson* 1.390 1912  
23 Mordecai Brown* 1.391 1907  
24 Harry Krause 1.394 1909  
25 Ed Walsh* 1.407 1909  
26 Ed Walsh* 1.416 1908  
27 Ed Reulbach 1.419 1905  
28 Orval Overall 1.421 1909  
29 Christy Mathewson* 1.428 1908  
30 Fred Anderson 1.444 1917  
31 Mordecai Brown* 1.470 1908  
32 Rube Waddell* 1.479 1905  
33 Walter Johnson* 1.488 1919  
34 Jack Pfiester 1.508 1906  
35 Monte Ward* 1.509 1878  
36 Harry McCormick 1.516 1882  
37 Doc White 1.518 1906  
37 Al Spalding* 1.518 1875  
39 George McQuillan 1.526 1908  
40 Eddie Cicotte 1.532 1917  
41 Will White 1.538 1882  
42 Cy Morgan 1.548 1910  
43 Pete Alexander* 1.550 1916  
43 Walter Johnson* 1.550 1915  
45 Howie Camnitz 1.559 1908  
46 Tommy Bond 1.560 1875  
47 Jim A Devlin 1.563 1876  
48 Tim Keefe* 1.575 1885  
49 Fred Toney 1.576 1915  
50 Eddie Cicotte 1.578 1913  
51 Rube Marquard 1.580 1916  
52 Charles Bender* 1.584 1910  
53 Barney Pelty 1.588 1906  
54 Addie Joss 1.591 1904  
55 Candy Cummings* 1.597 1875  
56 Ed Walsh* 1.598 1907  
57 Luis Tiant 1.603 1968  
58 Joe McGinnity* 1.610 1904  
59 Tom Seaver 1.614 1975  
60 Ray Collins 1.619 1910  
61 Rube Waddell* 1.621 1904  
62 Howie Camnitz 1.622 1909  
63 Cy Young* 1.624 1901  
64 Spud Chandler 1.636 1943  
65 Ernie Shore 1.640 1915  
66 Silver King 1.644 1888  
67 Ed Summers 1.645 1908  
68 Dean Chance 1.649 1964  
69 Walter Johnson* 1.650 1908  
70 Ed Reulbach 1.651 1906  
71 Russ Ford 1.652 1910  
72 Charles Bender* 1.656 1909  
73 Sam Leever 1.662 1907  
73 Carl Hubbell* 1.662 1933  
75 Mickey Welch 1.665 1885  
76 Candy Cummings* 1.667 1876  
77 Smoky Joe Wood 1.676 1910  
77 Tommy Bond 1.676 1876  
79 Orval Overall 1.677 1907  
80 Ed Reulbach 1.688 1907  
81 Bill Burns 1.691 1908  
82 Rube Foster 1.701 1914  
82 Charlie Sweeney 1.701 1884  
84 Addie Joss 1.706 1909  
85 Ed Killian 1.713 1909  
86 Walter Johnson* 1.719 1914  
86 Ned Garvin 1.719 1904  
88 Doc White 1.722 1909  
89 Bill Doak 1.723 1914  
89 Addie Joss 1.723 1906  
89 Pete Alexander* 1.723 1919  
92 Sandy Koufax* 1.728 1966  
93 Bob Ewing 1.731 1907  
94 Vic Willis 1.733 1906  
95 Sandy Koufax* 1.735 1964  
96 Hippo Vaughn 1.736 1918  
97 Charlie Chech 1.738 1908  
98 Monte Ward* 1.739 1880  
99 Tim Keefe* 1.741 1888  
100 Carl Mays 1.744 1917  
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