Single-Season Leaders & Records for Earned Run Average

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Single-Season Leaders & Records for Earned Run Average

Baseball Leaders & Baseball Records: Single-Season Career Active Progressive Year-by-Year Top-Tens Yearly League

+ - Indicates Hall of Famer. Bold indicates active player.

Statistic Description: 9 * ER / IP For recent years, leaders need 1 IP per team game played

Only players who finished in the top 40 for the majors in a season will appear on this list.
Leaders from the current season are only included for rate stats after July 1st.

For batting rate stats, generally a minimum of 3.1 Plate Appearances/G, 1.0 IP/G, 0.5 Gm and Chances/Team Game (fielding), 0.2 SB att/Team Game (catchers), and 0.1 SB att/Team Game (baserunners only since 1951), and 0.1 decision/G for single-season leaderboards generally needed for rate statistics. For pitcher fielding the minimums are reduced by a third. For LF, CF, RF fielding stats, we only have reliable data since 1954, so all leaders are since 1954. Explanation of min. requirements

Rank	Player (age that year)	Earned Run Average	Year	Throws
1.	Tim Keefe+ (23)	0.857	1880	R
2.	Dutch Leonard (22)	0.961	1914	L
3.	Mordecai Brown+ (29)	1.038	1906	R
4.	Bob Gibson+ (32)	1.123	1968	R
5.	Christy Mathewson+ (28)	1.144	1909	R
6.	Walter Johnson+ (25)	1.145	1913	R
7.	Jack Pfiester (29)	1.154	1907	L
8.	Addie Joss+ (28)	1.163	1908	R
9.	Carl Lundgren (27)	1.174	1907	R
10.	Denny Driscoll (26)	1.209	1882	L
11.	Pete Alexander+ (28)	1.220	1915	R
12.	George Bradley (23)	1.225	1876	R
13.	Cy Young+ (41)	1.264	1908	R
14.	Ed Walsh+ (29)	1.266	1910	R
15.	Walter Johnson+ (30)	1.270	1918	R
16.	Christy Mathewson+ (24)	1.276	1905	R
17.	Jack Taylor (28)	1.295	1902	R
18.	Guy Hecker (26)	1.298	1882	R
19.	Jack Coombs (27)	1.300	1910	R
20.	Mordecai Brown+ (32)	1.313	1909	R
21.	Walter Johnson+ (22)	1.362	1910	R
22.	George Bradley (27)	1.378	1880	R
23.	Old Hoss Radbourn+ (29)	1.379	1884	R
24.	Walter Johnson+ (24)	1.390	1912	R
25.	Mordecai Brown+ (30)	1.391	1907	R
26.	Harry Krause (20)	1.394	1909	L
27.	Ed Walsh+ (28)	1.407	1909	R
28.	Ed Walsh+ (27)	1.416	1908	R
29.	Ed Reulbach (22)	1.419	1905	R
30.	Orval Overall (28)	1.421	1909	R
31.	Christy Mathewson+ (27)	1.428	1908	R
32.	Fred Anderson (31)	1.444	1917	R
33.	Mordecai Brown+ (31)	1.470	1908	R
34.	Rube Waddell+ (28)	1.479	1905	L
35.	Smoky Joe Wood (25)	1.487	1915	R
36.	Walter Johnson+ (31)	1.488	1919	R
37.	Jack Pfiester (28)	1.508	1906	L
38.	Monte Ward+ (18)	1.509	1878	R
39.	Harry McCormick (26)	1.516	1882	R
40.	Doc White (27)	1.518	1906	L
41.	George McQuillan (23)	1.526	1908	R
42.	Dwight Gooden (20)	1.529	1985	R
43.	Eddie Cicotte (33)	1.532	1917	R
44.	Will White (27)	1.538	1882	R
45.	Cy Morgan (31)	1.548	1910	R
46.	Pete Alexander+ (29)	1.550	1916	R
	Walter Johnson+ (27)	1.550	1915	R
48.	Howie Camnitz (26)	1.559	1908	R
	Greg Maddux (28)	1.559	1994	R
50.	Jim Devlin (27)	1.563	1876	R
Rank	Player (age that year)	Earned Run Average	Year	Throws
51.	Tim Keefe+ (28)	1.575	1885	R
52.	Fred Toney (26)	1.576	1915	R
53.	Eddie Cicotte (29)	1.578	1913	R
54.	Rube Marquard+ (29)	1.580	1916	L
55.	Chief Bender+ (26)	1.584	1910	R
56.	Barney Pelty (25)	1.588	1906	R
57.	Addie Joss+ (24)	1.591	1904	R
58.	Ed Walsh+ (26)	1.598	1907	R
59.	Luis Tiant (27)	1.603	1968	R
60.	Joe McGinnity+ (33)	1.610	1904	R
61.	Ray Collins (23)	1.619	1910	L
62.	Rube Waddell+ (27)	1.621	1904	L
63.	Howie Camnitz (27)	1.622	1909	R
64.	Cy Young+ (34)	1.624	1901	R
65.	Greg Maddux (29)	1.631	1995	R
66.	Silver King (20)	1.632	1888	R
67.	Spud Chandler (35)	1.636	1943	R
68.	Ernie Shore (24)	1.640	1915	R
69.	Ed Summers (23)	1.645	1908	R
70.	Dean Chance (23)	1.649	1964	R
71.	Walter Johnson+ (20)	1.650	1908	R
72.	Ed Reulbach (23)	1.651	1906	R
73.	Russ Ford (27)	1.652	1910	R
74.	Chief Bender+ (25)	1.656	1909	R
75.	Carl Hubbell+ (30)	1.662	1933	L
	Sam Leever (35)	1.662	1907	R
77.	Mickey Welch+ (25)	1.665	1885	R
78.	Candy Cummings+ (27)	1.667	1876	R
79.	Tommy Bond (20)	1.676	1876	R
80.	Orval Overall (26)	1.677	1907	R
81.	Ed Reulbach (24)	1.688	1907	R
82.	Claude Hendrix (25)	1.691	1914	R
	Nolan Ryan+ (34)	1.691	1981	R
84.	Jim McCormick (21)	1.692	1878	R
85.	Smoky Joe Wood (20)	1.693	1910	R
86.	Bill Burns (28)	1.701	1908	L
	Rube Foster (26)	1.701	1914	R
	Charlie Sweeney (21)	1.701	1884	R
89.	Addie Joss+ (29)	1.706	1909	R
90.	Ed Killian (32)	1.713	1909	L
91.	Ned Garvin (30)	1.719	1904	R
	Walter Johnson+ (26)	1.719	1914	R
93.	Doc White (30)	1.722	1909	L
94.	Pete Alexander+ (32)	1.723	1919	R
	Bill Doak (23)	1.723	1914	R
	Addie Joss+ (26)	1.723	1906	R
97.	Sandy Koufax+ (30)	1.728	1966	L
98.	Bob Ewing (34)	1.731	1907	R
99.	Vic Willis+ (30)	1.733	1906	R
100.	Sandy Koufax+ (28)	1.735	1964	L
Rank	Player (age that year)	Earned Run Average	Year	Throws
101.	Hippo Vaughn (30)	1.736	1918	L
102.	Charlie Chech (30)	1.738	1908	R
103.	Monte Ward+ (20)	1.739	1880	R
104.	Henry Boyle (23)	1.740	1884	R
105.	Tim Keefe+ (31)	1.741	1888	R
106.	Pedro Martinez (28)	1.742	2000	R
107.	Ron Guidry (27)	1.743	1978	L
108.	Carl Mays (25)	1.744	1917	R
	Earl Moore (25)	1.744	1903	R
110.	Babe Ruth+ (21)	1.752	1916	L
111.	Al Spalding+ (25)	1.753	1876	R
112.	Fred Goldsmith (24)	1.754	1880	R
113.	Henry Boyle (25)	1.757	1886	R
114.	Tom Seaver+ (26)	1.760	1971	R
115.	Doc White (26)	1.763	1905	L
116.	Eddie Plank+ (33)	1.764	1909	L
117.	Noodles Hahn (23)	1.766	1902	L
118.	Bob Rhoads (28)	1.767	1908	R
119.	Jack Powell (31)	1.770	1906	R
120.	Mort Cooper (29)	1.776	1942	R
	Doc White (25)	1.776	1904	L
122.	Ed Killian (30)	1.777	1907	L
123.	Eddie Cicotte (32)	1.781	1916	R
124.	Andy Coakley (25)	1.782	1908	R
	Ed Reulbach (26)	1.782	1909	R
126.	Will White (23)	1.788	1878	R
127.	Hippo Vaughn (31)	1.790	1919	L
128.	Guy Hecker (28)	1.798	1884	R
129.	Bob Rhoads (26)	1.800	1906	R
	Frank Smith (29)	1.800	1909	R
	Stump Wiedman (20)	1.800	1881	R
132.	Vean Gregg (26)	1.802	1911	L
133.	King Cole (24)	1.803	1910	R
134.	Sam McDowell (25)	1.807	1968	L
135.	Stan Coveleski+ (27)	1.810	1917	R
	Cy Morgan (30)	1.810	1909	R
	Hal Newhouser+ (24)	1.810	1945	L
138.	Vida Blue (21)	1.817	1971	L
	Dutch Ruether (25)	1.817	1919	L
140.	Russ Ford (31)	1.819	1914	R
141.	Eddie Cicotte (35)	1.820	1919	R
142.	Jack Chesbro+ (30)	1.821	1904	R
143.	Stan Coveleski+ (28)	1.823	1918	R
144.	Cy Young+ (38)	1.824	1905	R
145.	Lew Richie (24)	1.827	1908	R
	Hippo Vaughn (22)	1.827	1910	L
147.	Pete Alexander+ (30)	1.832	1917	R
148.	Otto Hess (27)	1.834	1906	L
	Addie Joss+ (27)	1.834	1907	R
150.	Andy Coakley (22)	1.835	1905	R
Rank	Player (age that year)	Earned Run Average	Year	Throws
151.	Fred Toney (30)	1.840	1919	R
152.	Jim McCormick (26)	1.842	1883	R
153.	Jim McCormick (23)	1.847	1880	R
154.	John Clarkson+ (23)	1.849	1885	R
155.	Eppa Rixey+ (25)	1.850	1916	L
156.	Lady Baldwin (26)	1.857	1885	L
157.	Mordecai Brown+ (33)	1.859	1910	R
158.	Mordecai Brown+ (27)	1.865	1904	R
159.	Wilbur Cooper (24)	1.866	1916	L
	Lefty Leifield (22)	1.866	1906	L
161.	Phil Niekro+ (28)	1.870	1967	R
	Kaiser Wilhelm (34)	1.870	1908	R
163.	Roger Clemens (42)	1.874	2005	R
164.	Ed Walsh+ (25)	1.875	1906	R
165.	Tony Mullane (23)	1.877	1882
166.	Clark Griffith+ (28)	1.879	1898	R
167.	Joe Horlen (26)	1.880	1964	R
168.	Sandy Koufax+ (27)	1.881	1963	L
	Joe Lake (28)	1.881	1909	R
170.	Nick Altrock (28)	1.882	1905	L
171.	Pol Perritt (25)	1.884	1917	R
172.	Harry Howell (31)	1.887	1908	R
173.	Rube Waddell+ (31)	1.890	1908	L
174.	Kevin Brown (31)	1.893	1996	R
175.	Christy Mathewson+ (29)	1.894	1910	R
176.	Bill James (22)	1.896	1914	R
	Ben Sanders (23)	1.896	1888	R
178.	Max Lanier (27)	1.898	1943	L
179.	Walter Johnson+ (23)	1.899	1911	R
	Walter Johnson+ (28)	1.899	1916	R
181.	Art Fromme (25)	1.901	1909	R
182.	Pedro Martinez (25)	1.902	1997	R
	Jim Scott (25)	1.902	1913	R
184.	Reb Russell (24)	1.904	1913	L
185.	Jake Weimer (30)	1.906	1904	L
186.	Pete Alexander+ (33)	1.907	1920	R
187.	Charley Hall (25)	1.908	1910	R
	Willie Mitchell (23)	1.908	1913	L
189.	Smoky Joe Wood (22)	1.910	1912	R
190.	Charlie Buffinton (27)	1.911	1888	R
	Luis Tiant (31)	1.911	1972	R
192.	Ed Siever (27)	1.912	1902	L
193.	Wilbur Wood (29)	1.913	1971	L
194.	Earl Moseley (27)	1.914	1915	R
195.	Bill Burns (29)	1.916	1909	L
196.	Gaylord Perry+ (33)	1.917	1972	R
	Jeff Pfeffer (28)	1.917	1916	R
198.	Orval Overall (27)	1.920	1908	R
199.	Larry Cheney (30)	1.921	1916	R
200.	Red Faber+ (28)	1.923	1917	R
Rank	Player (age that year)	Earned Run Average	Year	Throws
201.	Mickey Welch+ (28)	1.926	1888	R
202.	Cy Young+ (25)	1.927	1892	R
203.	Dolf Luque (32)	1.929	1923	R
204.	Roger Clemens (27)	1.931	1990	R
	John Tudor (31)	1.931	1985	L
206.	Harry Howell (30)	1.935	1907	R
207.	Hal Newhouser+ (25)	1.937	1946	L
208.	Allan Sothoron (25)	1.938	1918	R
209.	Eddie Cicotte (25)	1.940	1909	R
210.	Frank Owen (24)	1.943	1904	R
211.	Ray Caldwell (26)	1.944	1914	R
212.	Dave McNally (25)	1.945	1968	L
213.	Larry Corcoran (20)	1.947	1880	R
214.	Larry Corcoran (22)	1.948	1882	R
	Jesse Tannehill (27)	1.948	1902	L
216.	Reb Russell (28)	1.949	1917	L
217.	Sam Weaver (22)	1.950	1878	R
218.	Billy Rhines (21)	1.951	1890	R
219.	Ferdie Schupp (26)	1.952	1917	L
220.	Fred Olmstead (28)	1.953	1910	R
221.	Pretzels Getzien (20)	1.955	1884	R
	Denny McLain (24)	1.955	1968	R
223.	Tommy Bond (23)	1.961	1879	R
224.	Jeff Tesreau (24)	1.963	1912	R
225.	Cy Young+ (37)	1.966	1904	R
226.	Carl Lundgren (22)	1.969	1902	R
	Billy Pierce (28)	1.969	1955	L
228.	Harry Coveleski (30)	1.970	1916	L
229.	Jeff Pfeffer (26)	1.971	1914	R
230.	Perry Werden (22)	1.974	1884	R
231.	Steve Carlton+ (27)	1.975	1972	L
232.	Scott Perry (27)	1.977	1918	R
233.	Harry Howell (28)	1.978	1905	R
234.	Charlie Ferguson (23)	1.979	1886	R
	Tommy John (25)	1.979	1968	L
	Gary Peters (29)	1.979	1966	L
237.	Babe Adams (37)	1.982	1919	R
238.	Will White (24)	1.985	1879	R
239.	Bobby Bolin (29)	1.987	1968	R
240.	Cy Young+ (40)	1.992	1907	R
241.	Jim Bagby (27)	1.993	1917	R
	Christy Mathewson+ (30)	1.993	1911	R
243.	Pud Galvin+ (27)	1.994	1884	R
	Gary Nolan (24)	1.994	1972	R
	Jack Taylor (32)	1.994	1906	R
246.	Christy Mathewson+ (26)	2.000	1907	R
	Jack Pfiester (30)	2.000	1908	L
248.	Tully Sparks (32)	2.004	1907	R
249.	Lefty Tyler (28)	2.005	1918	L
	Lon Warneke (24)	2.005	1933	R
Rank	Player (age that year)	Earned Run Average	Year	Throws
	Hooks Wiltse (29)	2.005	1909	L
252.	Harry Gaspar (26)	2.008	1909	R
	Charlie Hodnett (23)	2.008	1884
254.	Hippo Vaughn (29)	2.009	1917	L
255.	Whitey Ford+ (29)	2.011	1958	L
256.	Eddie Plank+ (34)	2.013	1910	L
	Babe Ruth+ (22)	2.013	1917	L
	Ed Seward (21)	2.013	1888	R
	Doc Watson (29)	2.013	1914	L
260.	Addie Joss+ (25)	2.014	1905	R
261.	Red Faber+ (27)	2.016	1916	R
	Kid Nichols+ (34)	2.016	1904	R
263.	Al Benton (34)	2.019	1945	R
264.	Lefty Tyler (26)	2.021	1916	L
265.	Bob Wicker (27)	2.022	1905	R
266.	Smoky Joe Wood (21)	2.024	1911	R
267.	Bugs Raymond (26)	2.026	1908	R
	Ed Reulbach (25)	2.026	1908	R
	Frank Smith (28)	2.026	1908	R
270.	Phil Douglas (29)	2.028	1919	R
	Orel Hershiser (26)	2.028	1985	R
272.	Adonis Terry (23)	2.031	1888	R
273.	Christy Mathewson+ (23)	2.032	1904	R
274.	Ed Karger (24)	2.035	1907	L
	Jim Scott (27)	2.035	1915	R
276.	Eddie Cicotte (30)	2.038	1914	R
	Sandy Koufax+ (29)	2.038	1965	L
	Al Mamaux (21)	2.038	1915	R
279.	Catfish Hunter+ (26)	2.042	1972	R
280.	Roger Clemens (34)	2.045	1997	R
	Jesse Tannehill (29)	2.045	1904	L
282.	Buttons Briggs (28)	2.047	1904	R
283.	Nick Cullop (28)	2.048	1916	L
284.	Old Hoss Radbourn+ (28)	2.050	1883	R
285.	Deacon Phillippe (30)	2.051	1902	R
	Dave Righetti (22)	2.051	1981	L
287.	Chief Bender+ (23)	2.052	1907	R
	Rube Waddell+ (25)	2.052	1902	L
289.	Patsy Flaherty (28)	2.053	1904	L
	Hippo Vaughn (26)	2.053	1914	L
291.	Stan Bahnsen (23)	2.054	1968	R
	Bob Veale (32)	2.054	1968	L
293.	Glenn Liebhardt (24)	2.055	1907	R
294.	Noodles Hahn (25)	2.056	1904	L
	Slim Sallee (34)	2.056	1919	L
296.	Sam Leever (31)	2.057	1903	R
297.	Lefty Grove+ (31)	2.058	1931	L
	Joe Horlen (29)	2.058	1967	R
299.	Christy Mathewson+ (32)	2.059	1913	R
	Nap Rucker (22)	2.059	1907	L
Rank	Player (age that year)	Earned Run Average	Year	Throws
301.	Tommy Bond (22)	2.061	1878	R
302.	Allie Reynolds (35)	2.063	1952	R
303.	Nick Altrock (29)	2.065	1906	L
304.	Pedro Martinez (27)	2.067	1999	R
	Jim Palmer+ (26)	2.067	1972	R
306.	Carl Weilman (29)	2.068	1919	L
	Vic Willis+ (32)	2.068	1908	R
308.	George Winter (29)	2.069	1907	R
309.	Bob Caruthers (21)	2.071	1885	R
310.	Bill Sowders (23)	2.073	1888	R
311.	Bill Donovan (31)	2.077	1908	R
	Roger Nelson (28)	2.077	1972	R
	Pat Ragan (30)	2.077	1916	R
	Bill Swift (30)	2.077	1992	R
	Carl Weilman (24)	2.077	1914	L
316.	Nap Rucker (23)	2.079	1908	L
	Tom Seaver+ (28)	2.079	1973	R
	Don Sutton+ (27)	2.079	1972	R
319.	Eddie Plank+ (39)	2.080	1915	L
320.	Cy Young+ (36)	2.081	1903	R
321.	Jerry Koosman (25)	2.082	1968	L
322.	Mike O'Neill (26)	2.086	1904	L
323.	Dazzy Vance+ (37)	2.087	1928	R
324.	Jim Whitney (26)	2.089	1884	R
325.	Jim Palmer+ (29)	2.090	1975	R
	Will White (28)	2.090	1883	R
327.	Bill James (30)	2.091	1917	R
	Frank Smith (24)	2.091	1904	R
329.	Mordecai Brown+ (38)	2.094	1915	R
330.	Ned Garvin (28)	2.095	1902	R
331.	Ted Lyons+ (41)	2.096	1942	R
	Ed Poole (27)	2.096	1902	R
333.	Spud Chandler (38)	2.098	1946	R
	Carl Mays (27)	2.098	1919	R
	Jeff Pfeffer (27)	2.098	1915	R
	Howie Pollet (25)	2.098	1946	L
337.	Lefty Leifield (24)	2.099	1908	L
	Billy Taylor (29)	2.099	1884	R
339.	Warren Spahn+ (32)	2.100	1953	L
340.	Bill Dinneen (32)	2.102	1908	R
	Sam Leever (36)	2.102	1908	R
	Juan Marichal+ (31)	2.102	1969	R
	Earl Moore (31)	2.102	1909	R
	Frank Owen (25)	2.102	1905	R
345.	Al Maul (32)	2.103	1898	R
	Dave Roberts (26)	2.103	1971	L
347.	Eddie Plank+ (35)	2.104	1911	L
	Slim Sallee (29)	2.104	1914	L
	Pete Schneider (21)	2.104	1917	R
350.	Frank Corridon (28)	2.105	1909	R
Rank	Player (age that year)	Earned Run Average	Year	Throws
	Old Hoss Radbourn+ (27)	2.105	1882	R
352.	Dick Ellsworth (23)	2.106	1963	L
353.	Tommy Bond (21)	2.107	1877	R
	Wilbur Cooper (26)	2.107	1918	L
	Dave Foutz (29)	2.107	1886	R
356.	Ray Fisher (27)	2.108	1915	R
357.	Jack Powell (33)	2.109	1908	R
	Jack Powell (34)	2.109	1909	R
359.	Bullet Joe Bush (25)	2.112	1918	R
360.	Harry Howell (29)	2.114	1906	R
361.	Joe Benz (29)	2.115	1915	R
	Rube Foster (27)	2.115	1915	R
363.	Lew Brockett (28)	2.118	1909	R
	Johnny Lush (22)	2.118	1908	L
	Christy Mathewson+ (21)	2.118	1902	R
366.	Bill Bernhard (32)	2.119	1903	R
	Tom Hughes (31)	2.119	1915	R
	Christy Mathewson+ (31)	2.119	1912	R
369.	Dizzy Trout (29)	2.120	1944	R
370.	Heinie Berger (26)	2.122	1908	R
371.	Steve Blass (26)	2.124	1968	R
	Roger Wolff (34)	2.124	1945	R
373.	Dutch Leonard (36)	2.125	1945	R
374.	Wilbur Cooper (22)	2.126	1914	L
	Phil Douglas (28)	2.126	1918	R
376.	Monte Ward+ (21)	2.127	1881	R
377.	Frank Smith (25)	2.129	1905	R
378.	Doc White (24)	2.130	1903	L
379.	Johnny Beazley (24)	2.132	1942	R
	Mickey Hughes (21)	2.132	1888	R
381.	Bill Bernhard (33)	2.133	1904	R
	Burleigh Grimes+ (24)	2.133	1918	R
	Juan Marichal+ (27)	2.133	1965	R
384.	Whitey Ford+ (35)	2.134	1964	L
	Kid Nichols+ (28)	2.134	1898	R
386.	John Clarkson+ (22)	2.136	1884	R
387.	Terry Larkin (21)	2.138	1877	R
	Bobby Mitchell (22)	2.138	1878	L
	Guy Morton (22)	2.138	1915	R
390.	Will White (25)	2.140	1880	R
391.	Joe Boehling (22)	2.142	1913	L
392.	Buttons Briggs (29)	2.143	1905	R
393.	Jack Manning (22)	2.144	1876	R
	George McQuillan (24)	2.144	1909	R
395.	Don Drysdale+ (31)	2.146	1968	R
396.	Charlie Buffinton (23)	2.147	1884	R
	Monte Ward+ (19)	2.147	1879	R
398.	Lee Richmond (23)	2.148	1880	L
399.	Bill Bernhard (31)	2.150	1902	R
	Howie Camnitz (25)	2.150	1907	R
Rank	Player (age that year)	Earned Run Average	Year	Throws
	Rube Waddell+ (30)	2.150	1907	L
402.	Babe Adams (31)	2.152	1913	R
	Carl Weilman (26)	2.152	1916	L
404.	Vern Law (35)	2.153	1965	R
	Ed Walsh+ (31)	2.153	1912	R
	Cy Young+ (35)	2.153	1902	R
407.	Babe Adams (38)	2.156	1920	R
408.	Hal Schumacher (22)	2.157	1933	R
409.	Zack Greinke (25)	2.158	2009	R
410.	Red Ames (24)	2.160	1907	R
	Art Nehf (24)	2.160	1917	L
	Tully Sparks (31)	2.160	1906	R
	Dazzy Vance+ (33)	2.160	1924	R
414.	Bret Saberhagen (25)	2.161	1989	R
415.	Chief Bender+ (27)	2.163	1911	R
	Dick Rudolph (28)	2.163	1916	R
	Ed Siever (32)	2.163	1907	L
	Bob Tewksbury (31)	2.163	1992	R
419.	Casey Patten (32)	2.165	1906	L
420.	Eddie Plank+ (28)	2.166	1904	L
421.	Doc Ayers (26)	2.167	1917	R
	Sam Leever (32)	2.167	1904	R
423.	Ray Fisher (31)	2.168	1919	R
424.	Mordecai Brown+ (28)	2.169	1905	R
	Jack Chesbro+ (28)	2.169	1902	R
426.	Eddie Plank+ (32)	2.170	1908	L
	Slim Sallee (32)	2.170	1917	L
	Jeff Tesreau (25)	2.170	1913	R
429.	Steve Carlton+ (24)	2.171	1969	L
	Dutch Leonard (25)	2.171	1917	L
	Mike Paul (27)	2.171	1972	L
	Dick Rudolph (31)	2.171	1919	R
433.	Guy Hecker (29)	2.175	1885	R
	Hooks Wiltse (27)	2.175	1907	L
435.	Harry Harper (23)	2.176	1918	L
	Sam McDowell (22)	2.176	1965	L
	Jesse Tannehill (26)	2.176	1901	L
438.	Dave Foutz (27)	2.177	1884	R
	Joe Magrane (23)	2.177	1988	L
440.	Bob Gibson+ (33)	2.178	1969	R
	Ed Morris (21)	2.178	1884	L
442.	Slim Sallee (31)	2.180	1916	L
443.	Bob Feller+ (27)	2.181	1946	R
	George Mogridge (29)	2.181	1918	L
445.	Bob Knepper (27)	2.183	1981	L
	Greg Maddux (26)	2.183	1992	R
447.	Tully Sparks (30)	2.184	1905	R
448.	Frank Arellanes (27)	2.185	1909	R
	Don Drysdale+ (27)	2.185	1964	R
	Willie Mitchell (27)	2.185	1917	L
Rank	Player (age that year)	Earned Run Average	Year	Throws
	Smoky Joe Wood (19)	2.185	1909	R
452.	Dummy Taylor (27)	2.186	1902	R
453.	Tony Mullane (24)	2.188	1883
454.	Addie Joss+ (23)	2.189	1903	R
455.	Hoyt Wilhelm+ (36)	2.190	1959	R
456.	Dick Bosman (25)	2.192	1969	R
	Ice Box Chamberlain (20)	2.192	1888	R
	Bill Donovan (30)	2.192	1907	R
	Harry Howell (27)	2.192	1904	R
460.	Deacon Phillippe (33)	2.194	1905	R
461.	Vic Willis+ (26)	2.195	1902	R
462.	Jack Chesbro+ (31)	2.196	1905	R
463.	Dummy Taylor (31)	2.197	1906	R
464.	Glenn Liebhardt (25)	2.198	1908	R
	George McConnell (37)	2.198	1915	R
466.	Bill Dinneen (28)	2.199	1904	R
	Fred Toney (28)	2.199	1917	R
468.	Dave Davenport (25)	2.200	1915	R
	Eddie Plank+ (31)	2.200	1907	L
	Allan Sothoron (26)	2.200	1919	R
471.	George Derby (23)	2.201	1881	R
	Old Hoss Radbourn+ (30)	2.201	1885	R
	Tom Seaver+ (23)	2.201	1968	R
474.	Chris Short (26)	2.202	1964	L
475.	Joe Lake (29)	2.204	1910	R
	Don Sutton+ (35)	2.204	1980	R
	Hippo Vaughn (28)	2.204	1916	L
478.	Greg Maddux (31)	2.205	1997	R
479.	Chief Bender+ (29)	2.206	1913	R
	Tom Seaver+ (24)	2.206	1969	R
481.	Bob Ewing (35)	2.207	1908	R
	Nap Rucker (27)	2.207	1912	L
483.	Hank Aguirre (31)	2.208	1962	L
	Johnny Sain (28)	2.208	1946	R
485.	Ed Daily (22)	2.209	1885	R
	Al Demaree (28)	2.209	1913	R
	Norwood Gibson (27)	2.209	1904	R
	Walter Johnson+ (29)	2.209	1917	R
	Carl Mays (26)	2.209	1918	R
490.	Carl Lundgren (26)	2.210	1906	R
491.	Rube Waddell+ (29)	2.211	1906	L
492.	Bob Shawkey (25)	2.212	1916	R
493.	Danny Darwin (34)	2.213	1990	R
	Nick Maddox (22)	2.213	1909	R
495.	Doc Ayers (24)	2.215	1915	R
	Tom Hughes (29)	2.215	1908	R
	Rube Vickers (30)	2.215	1908	R
498.	Jake Weimer (32)	2.216	1906	L
499.	Mike Cuellar (29)	2.217	1966	L
	Cy Falkenberg (33)	2.217	1913	R
Rank	Player (age that year)	Earned Run Average	Year	Throws
	Walter Johnson+ (21)	2.217	1909	R

Baseball Leaders & Baseball Records: Single-Season Career Active Progressive Year-by-Year Top-Tens Yearly League

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