The Baseball-Reference.com Play Index's Batting Season Finder lets you create your own custom leaderboards by team, age, position, years, or any other common criteria. View Sample Leaderboards created with the batting season finder.
+ - Indicates Hall of Famer. Bold indicates active player.
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.
Minimum of 3.1 PA/G, 1.0 IP/G, and 0.1 decision/G for single-season leaderboards generally needed for rate statistics. Explanation of min. requirements
| Rank | Player (age that year) | Adjusted ERA+ | Year | Throws |
|---|---|---|---|---|
| 1. | Tim Keefe+ (23) | 294 | 1880 | R |
| 2. | Pedro Martinez (28) | 291 | 2000 | R |
| 3. | Dutch Leonard (22) | 279 | 1914 | L |
| 4. | Greg Maddux (28) | 271 | 1994 | R |
| 5. | Greg Maddux (29) | 262 | 1995 | R |
| 6. | Walter Johnson+ (25) | 259 | 1913 | R |
| 7. | Bob Gibson+ (32) | 258 | 1968 | R |
| 8. | Mordecai Brown+ (29) | 253 | 1906 | R |
| 9. | Pedro Martinez (27) | 243 | 1999 | R |
| 10. | Walter Johnson+ (24) | 242 | 1912 | R |
| 11. | Christy Mathewson+ (24) | 230 | 1905 | R |
| 12. | Dwight Gooden (20) | 228 | 1985 | R |
| 13. | Roger Clemens (42) | 226 | 2005 | R |
| 14. | Pete Alexander+ (28) | 225 | 1915 | R |
| 15. | Christy Mathewson+ (28) | 222 | 1909 | R |
| 16. | Roger Clemens (34) | 221 | 1997 | R |
| 17. | Denny Driscoll (26) | 220 | 1882 | L |
| 18. | Lefty Grove+ (31) | 219 | 1931 | L |
| Pedro Martinez (25) | 219 | 1997 | R | |
| 20. | Kevin Brown (31) | 216 | 1996 | R |
| Jack Pfiester (29) | 216 | 1907 | L | |
| Cy Young+ (34) | 216 | 1901 | R | |
| 23. | Walter Johnson+ (30) | 214 | 1918 | R |
| Walter Johnson+ (31) | 214 | 1919 | R | |
| 25. | Roger Clemens (27) | 213 | 1990 | R |
| 26. | Carl Lundgren (27) | 212 | 1907 | R |
| 27. | Pedro Martinez (31) | 210 | 2003 | R |
| 28. | Ed Reulbach (22) | 209 | 1905 | R |
| 29. | Ron Guidry (27) | 208 | 1978 | L |
| 30. | Addie Joss+ (28) | 205 | 1908 | R |
| Charley Radbourn+ (29) | 205 | 1884 | R | |
| 32. | Zack Greinke (25) | 203 | 2009 | R |
| 33. | Pedro Martinez (30) | 202 | 2002 | R |
| Jack Taylor (28) | 202 | 1902 | R | |
| 35. | Dolf Luque (32) | 201 | 1923 | R |
| Billy Pierce (28) | 201 | 1955 | L | |
| 37. | Dean Chance (23) | 198 | 1964 | R |
| 38. | Spud Chandler (35) | 197 | 1943 | R |
| Randy Johnson (38) | 197 | 2002 | L | |
| Silver King (20) | 197 | 1888 | R | |
| Al Maul (29) | 197 | 1895 | R | |
| 42. | Randy Johnson (33) | 196 | 1997 | L |
| Ed Siever (27) | 196 | 1902 | L | |
| 44. | Hal Newhouser+ (24) | 195 | 1945 | L |
| 45. | Mort Cooper (29) | 194 | 1942 | R |
| Nolan Ryan+ (34) | 194 | 1981 | R | |
| Cy Young+ (41) | 194 | 1908 | R | |
| 48. | Mordecai Brown+ (32) | 193 | 1909 | R |
| Carl Hubbell+ (30) | 193 | 1933 | L | |
| Tom Seaver+ (26) | 193 | 1971 | R | |
| Rank | Player (age that year) | Adjusted ERA+ | Year | Throws |
| 51. | Guy Hecker (26) | 192 | 1882 | R |
| Randy Johnson (31) | 192 | 1995 | L | |
| Monty Stratton (25) | 192 | 1937 | R | |
| 54. | Lefty Gomez+ (28) | 191 | 1937 | L |
| Walter Johnson+ (27) | 191 | 1915 | R | |
| Dazzy Vance+ (37) | 191 | 1928 | R | |
| 57. | Clark Griffith+ (28) | 190 | 1898 | R |
| Sandy Koufax+ (30) | 190 | 1966 | L | |
| 59. | Vean Gregg (26) | 189 | 1911 | L |
| Greg Maddux (31) | 189 | 1997 | R | |
| Amos Rusie+ (23) | 189 | 1894 | R | |
| Dazzy Vance+ (39) | 189 | 1930 | R | |
| Ed Walsh+ (29) | 189 | 1910 | R | |
| 64. | Lefty Grove+ (36) | 188 | 1936 | L |
| Randy Johnson (37) | 188 | 2001 | L | |
| Hal Newhouser+ (25) | 188 | 1946 | L | |
| Billy Rhines (27) | 188 | 1896 | R | |
| Warren Spahn+ (32) | 188 | 1953 | L | |
| Jack Stivetts (21) | 188 | 1889 | R | |
| Wilbur Wood (29) | 188 | 1971 | L | |
| 71. | Sandy Koufax+ (28) | 187 | 1964 | L |
| Greg Maddux (32) | 187 | 1998 | R | |
| Joe Wood (25) | 187 | 1915 | R | |
| 74. | Eddie Cicotte (29) | 186 | 1913 | R |
| Randy Johnson (35) | 186 | 1999 | L | |
| Luis Tiant (27) | 186 | 1968 | R | |
| 77. | Vida Blue (21) | 185 | 1971 | L |
| Chris Carpenter (34) | 185 | 2009 | R | |
| Lefty Grove+ (30) | 185 | 1930 | L | |
| Lefty Grove+ (39) | 185 | 1939 | L | |
| 81. | Billy Rhines (21) | 184 | 1890 | R |
| John Tudor (31) | 184 | 1985 | L | |
| 83. | Hank Aguirre (31) | 183 | 1962 | L |
| Joe Horlen (26) | 183 | 1964 | R | |
| Walter Johnson+ (22) | 183 | 1910 | R | |
| 86. | Harry Brecheen (33) | 182 | 1948 | L |
| Steve Carlton+ (27) | 182 | 1972 | L | |
| Jack Coombs (27) | 182 | 1910 | R | |
| Johan Santana (25) | 182 | 2004 | L | |
| 90. | Henry Boyle (25) | 181 | 1886 | R |
| Russ Ford (31) | 181 | 1914 | R | |
| Randy Johnson (36) | 181 | 2000 | L | |
| Fred Toney (26) | 181 | 1915 | R | |
| 94. | Bret Saberhagen (25) | 180 | 1989 | R |
| 95. | Kevin Appier (25) | 179 | 1993 | R |
| Mordecai Brown+ (30) | 179 | 1907 | R | |
| Phil Niekro+ (28) | 179 | 1967 | R | |
| Jason Schmidt (30) | 179 | 2003 | R | |
| Rube Waddell+ (25) | 179 | 1902 | L | |
| Rube Waddell+ (28) | 179 | 1905 | L | |
| Rank | Player (age that year) | Adjusted ERA+ | Year | Throws |
| 101. | Marvin Freeman (31) | 178 | 1994 | R |
| Max Lanier (27) | 178 | 1943 | L | |
| Orval Overall (28) | 178 | 1909 | R | |
| Mark Prior (22) | 178 | 2003 | R | |
| Joe Wood (22) | 178 | 1912 | R | |
| 106. | Johnny Antonelli (24) | 177 | 1954 | L |
| Roger Clemens (31) | 177 | 1994 | R | |
| Randy Johnson (40) | 177 | 2004 | L | |
| Derek Lowe (29) | 177 | 2002 | R | |
| Andy Pettitte (33) | 177 | 2005 | L | |
| 111. | Johnny Allen (32) | 176 | 1937 | R |
| Fred Anderson (31) | 176 | 1917 | R | |
| Whitey Ford+ (29) | 176 | 1958 | L | |
| Cy Young+ (25) | 176 | 1892 | R | |
| 115. | Al Benton (34) | 175 | 1945 | R |
| Eddie Cicotte (35) | 175 | 1919 | R | |
| Roger Clemens (29) | 175 | 1992 | R | |
| Lefty Gomez+ (25) | 175 | 1934 | L | |
| Lefty Grove+ (35) | 175 | 1935 | L | |
| Cliff Lee (29) | 175 | 2008 | L | |
| Harry McCormick (26) | 175 | 1882 | R | |
| Tom Seaver+ (28) | 175 | 1973 | R | |
| 123. | Eddie Cicotte (33) | 174 | 1917 | R |
| Roger Clemens (35) | 174 | 1998 | R | |
| Claude Hendrix (25) | 174 | 1914 | R | |
| Felix Hernandez (23) | 174 | 2009 | R | |
| Jack Pfiester (28) | 174 | 1906 | L | |
| Dazzy Vance+ (33) | 174 | 1924 | R | |
| 129. | George Bradley (23) | 173 | 1876 | R |
| Jim Devlin (27) | 173 | 1876 | R | |
| Tim Keefe+ (28) | 173 | 1885 | R | |
| Thornton Lee (34) | 173 | 1941 | L | |
| Tim Lincecum (25) | 173 | 2009 | R | |
| Ted Lyons+ (41) | 173 | 1942 | R | |
| Dave Righetti (22) | 173 | 1981 | L | |
| Jeff Tesreau (24) | 173 | 1912 | R | |
| Will White (27) | 173 | 1882 | R | |
| Hoyt Wilhelm+ (36) | 173 | 1959 | R | |
| 139. | Walter Johnson+ (23) | 172 | 1911 | R |
| Harry Krause (20) | 172 | 1909 | L | |
| Kid Nichols+ (28) | 172 | 1898 | R | |
| Dave Stieb (27) | 172 | 1985 | R | |
| 143. | Henry Boyle (23) | 171 | 1884 | R |
| Jeff D'Amico (24) | 171 | 2000 | R | |
| Red Faber+ (32) | 171 | 1921 | R | |
| Juan Guzman (29) | 171 | 1996 | R | |
| Mel Harder (24) | 171 | 1934 | R | |
| Guy Hecker (28) | 171 | 1884 | R | |
| Ted Lyons+ (38) | 171 | 1939 | R | |
| Greg Maddux (27) | 171 | 1993 | R | |
| Rank | Player (age that year) | Adjusted ERA+ | Year | Throws |
| Jake Peavy (23) | 171 | 2004 | R | |
| Charlie Sweeney (21) | 171 | 1884 | R | |
| 153. | Pete Alexander+ (29) | 170 | 1916 | R |
| David Cone (31) | 170 | 1994 | R | |
| Whitey Ford+ (35) | 170 | 1964 | L | |
| Noodles Hahn (23) | 170 | 1902 | L | |
| Orel Hershiser (26) | 170 | 1985 | R | |
| Al Leiter (32) | 170 | 1998 | L | |
| Al Maul (32) | 170 | 1898 | R | |
| Jim McCormick (26) | 170 | 1883 | R | |
| Kid Nichols+ (27) | 170 | 1897 | R | |
| Gaylord Perry+ (33) | 170 | 1972 | R | |
| Ernie Shore (24) | 170 | 1915 | R | |
| Luis Tiant (31) | 170 | 1972 | R | |
| 165. | Kevin Brown (35) | 169 | 2000 | R |
| Kevin Brown (38) | 169 | 2003 | R | |
| John Candelaria (23) | 169 | 1977 | L | |
| Roger Clemens (23) | 169 | 1986 | R | |
| Mike Garcia (25) | 169 | 1949 | R | |
| Carl Hubbell+ (33) | 169 | 1936 | L | |
| Juan Marichal+ (27) | 169 | 1965 | R | |
| Rube Marquard+ (29) | 169 | 1916 | L | |
| Joe McGinnity+ (33) | 169 | 1904 | R | |
| Jim Palmer+ (29) | 169 | 1975 | R | |
| 175. | Pete Alexander+ (33) | 168 | 1920 | R |
| Danny Darwin (34) | 168 | 1990 | R | |
| Tom Glavine (32) | 168 | 1998 | L | |
| Carl Hubbell+ (31) | 168 | 1934 | L | |
| Juan Marichal+ (31) | 168 | 1969 | R | |
| Christy Mathewson+ (27) | 168 | 1908 | R | |
| Christy Mathewson+ (30) | 168 | 1911 | R | |
| Wilcy Moore (30) | 168 | 1927 | R | |
| Kid Nichols+ (20) | 168 | 1890 | R | |
| Warren Spahn+ (26) | 168 | 1947 | L | |
| Dizzy Trout (29) | 168 | 1944 | R | |
| Bucky Walters (30) | 168 | 1939 | R | |
| Doc White (27) | 168 | 1906 | L | |
| 188. | Pete Alexander+ (32) | 167 | 1919 | R |
| Gene Bearden (27) | 167 | 1948 | L | |
| Dick Ellsworth (23) | 167 | 1963 | L | |
| Tim Lincecum (24) | 167 | 2008 | R | |
| Juan Marichal+ (28) | 167 | 1966 | R | |
| Jon Matlack (28) | 167 | 1978 | L | |
| Kevin Millwood (24) | 167 | 1999 | R | |
| Bobo Newsom (32) | 167 | 1940 | R | |
| Steve Ontiveros (33) | 167 | 1994 | R | |
| Ed Walsh+ (28) | 167 | 1909 | R | |
| Vic Willis+ (23) | 167 | 1899 | R | |
| 199. | Allan Anderson (24) | 166 | 1988 | L |
| Ewell Blackwell (24) | 166 | 1947 | R | |
| Rank | Player (age that year) | Adjusted ERA+ | Year | Throws |
| Lefty Grove+ (26) | 166 | 1926 | L | |
| Ray Kremer (34) | 166 | 1927 | R | |
| Greg Maddux (26) | 166 | 1992 | R | |
| Johan Santana (29) | 166 | 2008 | L | |
| Herb Score (23) | 166 | 1956 | L | |
| Cy Young+ (35) | 166 | 1902 | R | |
| 207. | Kevin Appier (24) | 165 | 1992 | R |
| Buzz Capra (26) | 165 | 1974 | R | |
| Spud Chandler (38) | 165 | 1946 | R | |
| John Clarkson+ (23) | 165 | 1885 | R | |
| Sam McDowell (25) | 165 | 1968 | L | |
| Tom Seaver+ (24) | 165 | 1969 | R | |
| Rube Waddell+ (27) | 165 | 1904 | L | |
| Tim Wakefield (28) | 165 | 1995 | R | |
| Brandon Webb (24) | 165 | 2003 | R | |
| 216. | Kevin Brown (33) | 164 | 1998 | R |
| Steve Carlton+ (24) | 164 | 1969 | L | |
| Roger Clemens (28) | 164 | 1991 | R | |
| Stan Coveleski+ (28) | 164 | 1918 | R | |
| Charlie Ferguson (23) | 164 | 1886 | R | |
| Bob Gibson+ (33) | 164 | 1969 | R | |
| Tim Hudson (27) | 164 | 2003 | R | |
| Walter Johnson+ (26) | 164 | 1914 | R | |
| Jimmy Key (26) | 164 | 1987 | L | |
| Howie Pollet (25) | 164 | 1946 | L | |
| Bill Walker (27) | 164 | 1931 | L | |
| Mickey Welch+ (25) | 164 | 1885 | R | |
| 228. | Dick Donovan (33) | 163 | 1961 | R |
| Dave Foutz (29) | 163 | 1886 | R | |
| Vern Law (35) | 163 | 1965 | R | |
| Pedro Martinez (26) | 163 | 1998 | R | |
| Earl Moore (23) | 163 | 1903 | R | |
| Mike Mussina (25) | 163 | 1994 | R | |
| Barney Pelty (25) | 163 | 1906 | R | |
| Jose Rijo (28) | 163 | 1993 | R | |
| Amos Rusie+ (26) | 163 | 1897 | R | |
| Ed Walsh+ (27) | 163 | 1908 | R | |
| Lon Warneke (24) | 163 | 1933 | R | |
| 239. | Johnny Beazley (24) | 162 | 1942 | R |
| Steve Carlton+ (35) | 162 | 1980 | L | |
| Bill Doak (23) | 162 | 1914 | R | |
| Bill Hands (29) | 162 | 1969 | R | |
| Teddy Higuera (29) | 162 | 1988 | L | |
| Silver King (22) | 162 | 1890 | R | |
| Greg Maddux (30) | 162 | 1996 | R | |
| Allie Reynolds (35) | 162 | 1952 | R | |
| Elmer Riddle (26) | 162 | 1941 | R | |
| C.C. Sabathia (27) | 162 | 2008 | L | |
| Ben Sheets (25) | 162 | 2004 | R | |
| Scott Stratton (20) | 162 | 1890 | R | |
| Rank | Player (age that year) | Adjusted ERA+ | Year | Throws |
| Tim Wakefield (35) | 162 | 2002 | R | |
| Stump Wiedman (20) | 162 | 1881 | R | |
| Joe Wood (21) | 162 | 1911 | R | |
| 254. | Bob Feller+ (21) | 161 | 1940 | R |
| Jocko Flynn (22) | 161 | 1886 | R | |
| Tommy John (25) | 161 | 1968 | L | |
| Sam McDowell (22) | 161 | 1965 | L | |
| Tony Mullane (31) | 161 | 1890 | R | |
| Hal Newhouser+ (21) | 161 | 1942 | L | |
| Hal Newhouser+ (23) | 161 | 1944 | L | |
| Gary Nolan (24) | 161 | 1972 | R | |
| Johan Santana (27) | 161 | 2006 | L | |
| Mike Scott (31) | 161 | 1986 | R | |
| Don Sutton+ (27) | 161 | 1972 | R | |
| Hippo Vaughn (30) | 161 | 1918 | L | |
| Hippo Vaughn (31) | 161 | 1919 | L | |
| 267. | Bill Bernhard (31) | 160 | 1902 | R |
| George Bradley (27) | 160 | 1880 | R | |
| Mordecai Brown+ (31) | 160 | 1908 | R | |
| Mike Caldwell (29) | 160 | 1978 | L | |
| Curt Davis (30) | 160 | 1934 | R | |
| Russ Ford (27) | 160 | 1910 | R | |
| Lefty Grove+ (38) | 160 | 1938 | L | |
| Addie Joss+ (24) | 160 | 1904 | R | |
| Jair Jurrjens (23) | 160 | 2009 | R | |
| Jerry Koosman (26) | 160 | 1969 | L | |
| Dave Koslo (29) | 160 | 1949 | L | |
| Sandy Koufax+ (29) | 160 | 1965 | L | |
| Joe Magrane (23) | 160 | 1988 | L | |
| Christy Mathewson+ (31) | 160 | 1912 | R | |
| Tony Mullane (24) | 160 | 1883 | R | |
| Kid Nichols+ (26) | 160 | 1896 | R | |
| Gary Peters (29) | 160 | 1966 | L | |
| Don Sutton+ (35) | 160 | 1980 | R | |
| Carl Weilman (29) | 160 | 1919 | L | |
| Carlos Zambrano (23) | 160 | 2004 | R | |
| 287. | Cy Blanton (26) | 159 | 1935 | R |
| Garland Braxton (28) | 159 | 1928 | L | |
| Tom Candiotti (33) | 159 | 1991 | R | |
| King Cole (24) | 159 | 1910 | R | |
| David Cone (34) | 159 | 1997 | R | |
| Dizzy Dean+ (24) | 159 | 1934 | R | |
| Ned Garvin (28) | 159 | 1902 | R | |
| Lefty Grove+ (32) | 159 | 1932 | L | |
| Atlee Hammaker (25) | 159 | 1983 | L | |
| Sandy Koufax+ (27) | 159 | 1963 | L | |
| Esteban Loaiza (31) | 159 | 2003 | R | |
| Greg Maddux (36) | 159 | 2002 | R | |
| Daisuke Matsuzaka (27) | 159 | 2008 | R | |
| Rudy May (35) | 159 | 1980 | L | |
| Rank | Player (age that year) | Adjusted ERA+ | Year | Throws |
| Phil Niekro+ (35) | 159 | 1974 | R | |
| Jake Peavy (26) | 159 | 2007 | R | |
| Ed Reulbach (23) | 159 | 1906 | R | |
| Curt Schilling (36) | 159 | 2003 | R | |
| Bobby Shantz (26) | 159 | 1952 | L | |
| Bill Swift (30) | 159 | 1992 | R | |
| Frank Viola (27) | 159 | 1987 | L | |
| Lon Warneke (23) | 159 | 1932 | R | |
| 309. | Bert Blyleven (22) | 158 | 1973 | R |
| Bob Bowman (28) | 158 | 1939 | R | |
| Howie Camnitz (27) | 158 | 1909 | R | |
| Bob Caruthers (21) | 158 | 1885 | R | |
| Mark Fidrych (21) | 158 | 1976 | R | |
| Chuck Finley (27) | 158 | 1990 | L | |
| Rube Foster (26) | 158 | 1914 | R | |
| Ned Garvin (30) | 158 | 1904 | R | |
| Lefty Grove+ (37) | 158 | 1937 | L | |
| Roy Halladay (25) | 158 | 2002 | R | |
| Willie Mitchell (23) | 158 | 1913 | L | |
| Rick Reuschel (36) | 158 | 1985 | R | |
| Babe Ruth+ (21) | 158 | 1916 | L | |
| Adam Wainwright (27) | 158 | 2009 | R | |
| Barry Zito (24) | 158 | 2002 | L | |
| 324. | Pete Alexander+ (40) | 157 | 1927 | R |
| Dick Bosman (25) | 157 | 1969 | R | |
| Ray Collins (23) | 157 | 1910 | L | |
| Russ Ford (28) | 157 | 1911 | R | |
| Roy Halladay (32) | 157 | 2009 | R | |
| Sam Leever (31) | 157 | 1903 | R | |
| Dutch Leonard (39) | 157 | 1948 | R | |
| George McQuillan (23) | 157 | 1908 | R | |
| Mike Mussina (23) | 157 | 1992 | R | |
| Mel Parnell (27) | 157 | 1949 | L | |
| Rick Reuschel (28) | 157 | 1977 | R | |
| Dave Roberts (26) | 157 | 1971 | L | |
| Curt Schilling (34) | 157 | 2001 | R | |
| Chris Short (26) | 157 | 1964 | L | |
| Bob Tewksbury (31) | 157 | 1992 | R | |
| Ernie White (24) | 157 | 1941 | L | |
| Whit Wyatt (33) | 157 | 1941 | R | |
| 341. | Sheriff Blake (28) | 156 | 1928 | R |
| Stan Coveleski+ (27) | 156 | 1917 | R | |
| Cy Falkenberg (33) | 156 | 1914 | R | |
| Whitey Ford+ (27) | 156 | 1956 | L | |
| Juan Guzman (25) | 156 | 1992 | R | |
| Teddy Higuera (27) | 156 | 1986 | L | |
| Randy Jones (25) | 156 | 1975 | L | |
| Tim Keefe+ (31) | 156 | 1888 | R | |
| Darryl Kile (28) | 156 | 1997 | R | |
| Dolf Luque (34) | 156 | 1925 | R | |
| Rank | Player (age that year) | Adjusted ERA+ | Year | Throws |
| Christy Mathewson+ (29) | 156 | 1910 | R | |
| Jim Palmer+ (27) | 156 | 1973 | R | |
| Johnny Podres (24) | 156 | 1957 | L | |
| Johnny Sain (28) | 156 | 1946 | R | |
| Bob Shawkey (29) | 156 | 1920 | R | |
| Sammy Stewart (26) | 156 | 1981 | R | |
| Brandon Webb (28) | 156 | 2007 | R | |
| Will White (28) | 156 | 1883 | R | |
| 359. | Bill Bevens (29) | 155 | 1946 | R |
| Ralph Branca (21) | 155 | 1947 | R | |
| Mordecai Brown+ (33) | 155 | 1910 | R | |
| Eddie Cicotte (32) | 155 | 1916 | R | |
| Jesse Duryea (29) | 155 | 1889 | R | |
| Pud Galvin+ (27) | 155 | 1884 | R | |
| Dave Goltz (29) | 155 | 1978 | R | |
| Lefty Grove+ (28) | 155 | 1928 | L | |
| Pat Hentgen (27) | 155 | 1996 | R | |
| Andy Pettitte (25) | 155 | 1997 | L | |
| Ben Sanders (23) | 155 | 1888 | R | |
| Johan Santana (26) | 155 | 2005 | L | |
| Dizzy Trout (31) | 155 | 1946 | R | |
| 372. | Charlie Buffinton (27) | 154 | 1888 | R |
| Roger Clemens (24) | 154 | 1987 | R | |
| Don Drysdale+ (20) | 154 | 1957 | R | |
| Bob Feller+ (20) | 154 | 1939 | R | |
| Roy Halladay (31) | 154 | 2008 | R | |
| Mike Hampton (26) | 154 | 1999 | L | |
| Randy Johnson (30) | 154 | 1994 | L | |
| Charlie Leibrandt (28) | 154 | 1985 | L | |
| Denny McLain (24) | 154 | 1968 | R | |
| Jim Palmer+ (23) | 154 | 1969 | R | |
| Reb Russell (24) | 154 | 1913 | L | |
| Ray Scarborough (30) | 154 | 1948 | R | |
| Jim Scott (25) | 154 | 1913 | R | |
| Frank Tanana (23) | 154 | 1977 | L | |
| Bucky Walters (31) | 154 | 1940 | R | |
| Vic Willis+ (30) | 154 | 1906 | R | |
| Early Wynn+ (36) | 154 | 1956 | R | |
| Cy Young+ (28) | 154 | 1895 | R | |
| 390. | Babe Adams (37) | 153 | 1919 | R |
| Pete Alexander+ (30) | 153 | 1917 | R | |
| Lady Baldwin (26) | 153 | 1885 | L | |
| Steve Carlton+ (32) | 153 | 1977 | L | |
| John Clarkson+ (27) | 153 | 1889 | R | |
| Mike Cuellar (29) | 153 | 1966 | L | |
| Phil Douglas (32) | 153 | 1922 | R | |
| Bob Feller+ (27) | 153 | 1946 | R | |
| Tom Glavine (25) | 153 | 1991 | L | |
| Ed Lopat (35) | 153 | 1953 | L | |
| Ted Lyons+ (34) | 153 | 1935 | R | |
| Rank | Player (age that year) | Adjusted ERA+ | Year | Throws |
| Greg Maddux (34) | 153 | 2000 | R | |
| Dennis Martinez (36) | 153 | 1991 | R | |
| Stu Miller (30) | 153 | 1958 | R | |
| Cy Morgan (31) | 153 | 1910 | R | |
| Eddie Plank+ (39) | 153 | 1915 | L | |
| Jose Rijo (26) | 153 | 1991 | R | |
| Frank Viola (28) | 153 | 1988 | L | |
| Rube Waddell+ (23) | 153 | 1900 | L | |
| Vic Willis+ (25) | 153 | 1901 | R | |
| Cy Young+ (32) | 153 | 1899 | R | |
| 411. | Al Benton (30) | 152 | 1941 | R |
| Stan Coveleski+ (30) | 152 | 1920 | R | |
| John Denny (30) | 152 | 1983 | R | |
| Jesse Flores (31) | 152 | 1946 | R | |
| Burleigh Grimes+ (35) | 152 | 1929 | R | |
| Mel Harder (23) | 152 | 1933 | R | |
| Dennis Martinez (40) | 152 | 1995 | R | |
| Christy Mathewson+ (32) | 152 | 1913 | R | |
| Dave McNally (25) | 152 | 1968 | L | |
| Kid Nichols+ (21) | 152 | 1891 | R | |
| Ray Prim (38) | 152 | 1945 | L | |
| Charley Radbourn+ (28) | 152 | 1883 | R | |
| Robin Roberts+ (26) | 152 | 1953 | R | |
| Preacher Roe (33) | 152 | 1948 | L | |
| Steve Rogers (32) | 152 | 1982 | R | |
| Dutch Ruether (25) | 152 | 1919 | L | |
| Bret Saberhagen (30) | 152 | 1994 | R | |
| Jerry Staley (28) | 152 | 1949 | R | |
| Bill Swift (27) | 152 | 1935 | R | |
| Fred Toney (30) | 152 | 1919 | R | |
| Doc Watson (28) | 152 | 1914 | L | |
| Brandon Webb (27) | 152 | 2006 | R | |
| Hoyt Wilhelm+ (29) | 152 | 1952 | R | |
| Joe Wood (20) | 152 | 1910 | R | |
| 435. | Bert Blyleven (26) | 151 | 1977 | R |
| Tiny Bonham (28) | 151 | 1942 | R | |
| Fausto Carmona (23) | 151 | 2007 | R | |
| Mike Cuellar (32) | 151 | 1969 | L | |
| Ryan Dempster (31) | 151 | 2008 | R | |
| Larry Dierker (22) | 151 | 1969 | R | |
| Red Ehret (21) | 151 | 1890 | R | |
| Bob Gibson+ (26) | 151 | 1962 | R | |
| Lefty Grove+ (29) | 151 | 1929 | L | |
| Joe Haynes (29) | 151 | 1947 | R | |
| Addie Joss+ (26) | 151 | 1906 | R | |
| Ray Kremer (33) | 151 | 1926 | R | |
| John Lackey (28) | 151 | 2007 | R | |
| Sal Maglie (33) | 151 | 1950 | R | |
| Doc McJames (23) | 151 | 1898 | R | |
| Claude Passeau (31) | 151 | 1940 | R | |
| Rank | Player (age that year) | Adjusted ERA+ | Year | Throws |
| Brad Penny (29) | 151 | 2007 | R | |
| Eddie Plank+ (35) | 151 | 1911 | L | |
| Nap Rucker (27) | 151 | 1912 | L | |
| Allen Sothoron (26) | 151 | 1919 | R | |
| Billy Taylor (29) | 151 | 1884 | R | |
| Adonis Terry (23) | 151 | 1888 | R | |
| Justin Thompson (24) | 151 | 1997 | L | |
| Jim Turner (33) | 151 | 1937 | R | |
| Wayne Twitchell (25) | 151 | 1973 | R | |
| Ed Walsh+ (26) | 151 | 1907 | R | |
| Perry Werden (18) | 151 | 1884 | R | |
| Dontrelle Willis (23) | 151 | 2005 | L | |
| 463. | Babe Adams (38) | 150 | 1920 | R |
| Bobby Bolin (29) | 150 | 1968 | R | |
| Kevin Brown (32) | 150 | 1997 | R | |
| Steve Carlton+ (36) | 150 | 1981 | L | |
| John Clarkson+ (24) | 150 | 1886 | R | |
| Dennis Eckersley+ (24) | 150 | 1979 | R | |
| Dave Foutz (27) | 150 | 1884 | R | |
| Ned Garvin (26) | 150 | 1900 | R | |
| Tex Hughson (28) | 150 | 1944 | R | |
| Bill James (22) | 150 | 1914 | R | |
| Bob Knepper (27) | 150 | 1981 | L | |
| Dutch Leonard (38) | 150 | 1947 | R | |
| Steve McCatty (27) | 150 | 1981 | R | |
| Jumbo McGinnis (29) | 150 | 1883 | ||
| Hideo Nomo (26) | 150 | 1995 | R | |
| Jim Palmer+ (26) | 150 | 1972 | R | |
| Howie Pollet (28) | 150 | 1949 | L | |
| Jose Rijo (23) | 150 | 1988 | R | |
| Curt Schilling (25) | 150 | 1992 | R | |
| Curt Schilling (37) | 150 | 2004 | R | |
| Tom Seaver+ (32) | 150 | 1977 | R | |
| Jesse Tannehill (26) | 150 | 1901 | L | |
| Ed Walsh+ (31) | 150 | 1912 | R | |
| 486. | Johnny Allen (31) | 149 | 1936 | R |
| Chief Bender+ (26) | 149 | 1910 | R | |
| Harry Brecheen (30) | 149 | 1945 | L | |
| Ernie Broglio (24) | 149 | 1960 | R | |
| Jim Bunning+ (35) | 149 | 1967 | R | |
| Chris Carpenter (30) | 149 | 2005 | R | |
| Don Drysdale+ (27) | 149 | 1964 | R | |
| Bob Ewing (34) | 149 | 1907 | R | |
| Lefty Gomez+ (22) | 149 | 1931 | L | |
| Mark Gubicza (25) | 149 | 1988 | R | |
| Warren Hacker (27) | 149 | 1952 | R | |
| Guy Hecker (29) | 149 | 1885 | R | |
| Bill Hoffer (24) | 149 | 1895 | R | |
| Carl Hubbell+ (29) | 149 | 1932 | L | |
| Walter Johnson+ (36) | 149 | 1924 | R | |
| Rank | Player (age that year) | Adjusted ERA+ | Year | Throws |
| Addie Joss+ (29) | 149 | 1909 | R | |
| Clayton Kershaw (21) | 149 | 2009 | L | |
| Dennis Lamp (28) | 149 | 1981 | R | |
| Jon Matlack (24) | 149 | 1974 | L | |
| Andy Messersmith (29) | 149 | 1975 | R | |
| Earl Moseley (27) | 149 | 1915 | R | |
| Al Orth (28) | 149 | 1901 | R | |
| Roy Oswalt (28) | 149 | 2006 | R | |
| Camilo Pascual (25) | 149 | 1959 | R | |
| Camilo Pascual (29) | 149 | 1963 | R | |
| Gary Peters (26) | 149 | 1963 | L | |
| Jack Powell (22) | 149 | 1897 | R | |
| Toad Ramsey (21) | 149 | 1886 | L | |
| Red Ruffing+ (32) | 149 | 1937 | R | |
| Ed Seward (21) | 149 | 1888 | R | |
| John Smoltz (29) | 149 | 1996 | R | |
| John Tudor (34) | 149 | 1988 | L | |
| Bob Welch (28) | 149 | 1985 | R |
Note that seasons prior to 1876 are not included in single-season marks, but are included in career marks.