Single-Season Leaders & Records for Adjusted ERA+
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| Rank | Player (age that year) | Adjusted ERA+ | Year | IP | Throws |
|---|---|---|---|---|---|
| 1. | Robert Keyes | 540 | 1944 | 28.0 | L |
| 2. | Garnett Blair (23) | 428 | 1945 | 47.0 | R |
| 3. | Roy Parnell (28) | 421 | 1932 | 54.0 | R |
| 4. | Gene Richardson (19) | 364 | 1947 | 27.0 | L |
| 5. | Gready McKinnis (27) | 345 | 1941 | 34.2 | L |
| 6. | Leroy Matlock (28) | 336 | 1935 | 71.0 | L |
| 7. | Jimmy Shields (22) | 334 | 1928 | 41.2 | R |
| 8. | Bill Foster+ (21) | 327 | 1925 | 78.0 | L |
| 9. | George Walker (25) | 325 | 1940 | 49.0 | R |
| 10. | Slim Jones (21) | 323 | 1934 | 203.0 | L |
| Satchel Paige+ (39) | 323 | 1946 | 35.0 | R | |
| 12. | Satchel Paige+ (37) | 313 | 1944 | 98.1 | R |
| 13. | Eugene Bremer (20) | 306 | 1937 | 55.0 | R |
| 14. | Angel García (23) | 305 | 1946 | 33.0 | L |
| 15. | Bullet Rogan+ (31) | 302 | 1925 | 155.1 | R |
| 16. | Johnny Wright (28) | 299 | 1945 | 45.2 | R |
| 17. | Tim Keefe+ (23) | 293 | 1880 | 105.0 | R |
| 18. | Pedro Martinez+ (28) | 291 | 2000 | 217.0 | R |
| 19. | Trevor Bauer (29) | 284 | 2020 | 73.0 | R |
| 20. | Dutch Leonard (22) | 279 | 1914 | 224.2 | L |
| 21. | Shane Bieber (25) | 273 | 2020 | 77.1 | R |
| Roy Partlow (27) | 273 | 1939 | 46.2 | L | |
| 23. | Greg Maddux+ (28) | 271 | 1994 | 202.0 | R |
| Hilton Smith+ (30) | 271 | 1937 | 130.1 | R | |
| 25. | Satchel Paige+ (27) | 269 | 1934 | 145.2 | R |
| 26. | Donald Troy (17) | 268 | 1944 | 55.1 | R |
| 27. | Hilton Smith+ (39) | 264 | 1946 | 51.2 | R |
| 28. | Greg Maddux+ (29) | 260 | 1995 | 209.2 | R |
| 29. | Walter Johnson+ (25) | 259 | 1913 | 346.0 | R |
| 30. | Bob Gibson+ (32) | 258 | 1968 | 304.2 | R |
| Logan Hensley (31) | 258 | 1931 | 66.1 | R | |
| 32. | Mordecai Brown+ (29) | 253 | 1906 | 277.1 | R |
| Roosevelt Davis (40) | 253 | 1945 | 32.2 | R | |
| 34. | Bill Foster+ (22) | 252 | 1926 | 174.2 | L |
| 35. | James Brown (20) | 251 | 1939 | 38.0 | R |
| Ray Brown+ (30) | 251 | 1938 | 129.0 | R | |
| Ray Brown+ (32) | 251 | 1940 | 165.1 | R | |
| 38. | Walter Johnson+ (24) | 243 | 1912 | 369.0 | R |
| Pedro Martinez+ (27) | 243 | 1999 | 213.1 | R | |
| 40. | Ford Smith (28) | 241 | 1947 | 63.0 | R |
| 41. | Barney Morris (35) | 237 | 1945 | 41.2 | R |
| 42. | Christy Mathewson+ (24) | 233 | 1905 | 338.2 | R |
| 43. | Dwight Gooden (20) | 229 | 1985 | 276.2 | R |
| 44. | Roy Partlow (30) | 228 | 1942 | 85.0 | L |
| 45. | Roger Clemens (42) | 226 | 2005 | 211.1 | R |
| 46. | Grover Alexander+ (28) | 225 | 1915 | 376.1 | R |
| Leon Day+ (25) | 225 | 1942 | 83.1 | R | |
| 48. | Yu Darvish (33) | 224 | 2020 | 76.0 | R |
| Dallas Keuchel (32) | 224 | 2020 | 63.1 | L | |
| Christy Mathewson+ (28) | 224 | 1909 | 275.1 | R | |
| Rank | Player (age that year) | Adjusted ERA+ | Year | IP | Throws |
| 51. | Rufus Lewis (26) | 223 | 1946 | 91.1 | R |
| Bullet Rogan+ (27) | 223 | 1921 | 204.0 | R | |
| 53. | Chet Brewer (22) | 222 | 1929 | 149.0 | R |
| Roger Clemens (34) | 222 | 1997 | 264.0 | R | |
| Zack Greinke (31) | 222 | 2015 | 222.2 | R | |
| 56. | Satchel Paige+ (26) | 221 | 1933 | 78.2 | R |
| 57. | Pedro Martinez+ (25) | 219 | 1997 | 241.1 | R |
| Bill Ricks (28) | 219 | 1948 | 52.0 | R | |
| Cy Young+ (34) | 219 | 1901 | 371.1 | R | |
| 60. | Jacob deGrom (30) | 218 | 2018 | 217.0 | R |
| Denny Driscoll (26) | 218 | 1882 | 201.0 | L | |
| Justin Verlander (39) | 218 | 2022 | 175.0 | R | |
| Roy Welmaker (23) | 218 | 1937 | 39.0 | L | |
| 64. | Vet Barnes (25) | 217 | 1937 | 69.1 | R |
| Lefty Grove+ (31) | 217 | 1931 | 288.2 | L | |
| Yellow Horse Morris (27) | 217 | 1929 | 109.1 | R | |
| Blake Snell (25) | 217 | 2018 | 180.2 | L | |
| 68. | Jake Arrieta (29) | 215 | 2015 | 229.0 | R |
| Kevin Brown (31) | 215 | 1996 | 233.0 | R | |
| Walter Johnson+ (31) | 215 | 1919 | 290.1 | R | |
| 71. | Walter Johnson+ (30) | 214 | 1918 | 326.0 | R |
| Max Manning (29) | 214 | 1948 | 113.1 | R | |
| Jack Pfiester (29) | 214 | 1907 | 195.0 | L | |
| 74. | Smoky Owens (30) | 213 | 1942 | 39.1 | R |
| Ford Smith (22) | 213 | 1941 | 26.2 | R | |
| Hilton Smith+ (31) | 213 | 1938 | 112.2 | R | |
| 77. | Percy Bailey (28) | 212 | 1933 | 79.2 | R |
| Felix Evans (28) | 212 | 1939 | 29.0 | R | |
| 79. | Roger Clemens (27) | 211 | 1990 | 228.1 | R |
| Carl Lundgren (27) | 211 | 1907 | 207.0 | R | |
| Pedro Martinez+ (31) | 211 | 2003 | 186.2 | R | |
| 82. | Dave Brown (27) | 210 | 1924 | 179.2 | L |
| Jay Heard (26) | 210 | 1946 | 18.0 | L | |
| 84. | Ed Reulbach (22) | 209 | 1905 | 291.2 | R |
| 85. | Ron Guidry (27) | 208 | 1978 | 273.2 | L |
| 86. | Neck Stanley (30) | 207 | 1935 | 65.2 | L |
| 87. | Hilton Smith+ (34) | 206 | 1941 | 83.1 | R |
| Jack Taylor (28) | 206 | 1902 | 333.2 | R | |
| 89. | Zack Greinke (25) | 205 | 2009 | 229.1 | R |
| Old Hoss Radbourn+ (29) | 205 | 1884 | 678.2 | R | |
| 91. | Nelson Dean (32) | 204 | 1931 | 91.2 | R |
| Addie Joss+ (28) | 204 | 1908 | 325.0 | R | |
| 93. | Telosh Howard (34) | 203 | 1938 | 62.2 | R |
| Jack Matchett (34) | 203 | 1942 | 51.2 | R | |
| Joe Strong (29) | 203 | 1932 | 61.0 | R | |
| 96. | Corey Kluber (31) | 202 | 2017 | 203.2 | R |
| Pedro Martinez+ (30) | 202 | 2002 | 199.1 | R | |
| Barney Morris (34) | 202 | 1944 | 58.1 | R | |
| Willie Powell (24) | 202 | 1928 | 135.0 | R | |
| 100. | Bill Foster+ (20) | 201 | 1924 | 66.2 | L |
| Rank | Player (age that year) | Adjusted ERA+ | Year | IP | Throws |
| Dinelson Lamet (27) | 201 | 2020 | 69.0 | R | |
| Dolf Luque (32) | 201 | 1923 | 322.0 | R | |
| 103. | Dean Chance (23) | 200 | 1964 | 278.1 | R |
| Billy Pierce (28) | 200 | 1955 | 205.2 | L | |
| Ford Smith (29) | 200 | 1948 | 55.2 | R | |
| 106. | Jesse Houston (27) | 199 | 1937 | 111.2 | R |
| Everett Nelson | 199 | 1932 | 56.1 | R | |
| Juan Padrón (31) | 199 | 1924 | 141.0 | L | |
| 109. | Spud Chandler (35) | 198 | 1943 | 253.0 | R |
| Willie Hubert (26) | 198 | 1939 | 48.2 | R | |
| Henry McHenry (27) | 198 | 1937 | 67.1 | R | |
| 112. | Randy Johnson+ (33) | 197 | 1997 | 213.0 | L |
| Clayton Kershaw (26) | 197 | 2014 | 198.1 | L | |
| Al Maul (29) | 197 | 1895 | 135.2 | R | |
| George Walker (24) | 197 | 1939 | 90.2 | R | |
| 116. | Trevor Bauer (27) | 196 | 2018 | 175.1 | R |
| Kyle Hendricks (26) | 196 | 2016 | 190.0 | R | |
| Gentry Jessup (31) | 196 | 1946 | 51.0 | R | |
| 119. | Dave Brown (23) | 195 | 1920 | 148.2 | L |
| Bill Byrd (33) | 195 | 1941 | 101.0 | R | |
| Randy Johnson+ (38) | 195 | 2002 | 260.0 | L | |
| Silver King (20) | 195 | 1888 | 584.2 | R | |
| Hal Newhouser+ (24) | 195 | 1945 | 313.1 | L | |
| Nolan Ryan+ (34) | 195 | 1981 | 149.0 | R | |
| Ed Siever (27) | 195 | 1902 | 188.1 | L | |
| Joe Strong (26) | 195 | 1929 | 109.2 | R | |
| Cy Young+ (41) | 195 | 1908 | 299.0 | R | |
| 128. | Bill Byrd (40) | 194 | 1948 | 123.1 | R |
| Clayton Kershaw (25) | 194 | 2013 | 236.0 | L | |
| Tom Seaver+ (26) | 194 | 1971 | 286.1 | R | |
| 131. | Mordecai Brown+ (32) | 193 | 1909 | 342.2 | R |
| Willie Cornelius (31) | 193 | 1938 | 102.0 | R | |
| Lefty Gomez+ (28) | 193 | 1937 | 278.1 | L | |
| Carl Hubbell+ (30) | 193 | 1933 | 308.2 | L | |
| George Jefferson (21) | 193 | 1944 | 60.2 | R | |
| Randy Johnson+ (31) | 193 | 1995 | 214.1 | L | |
| Smoky Owens (27) | 193 | 1939 | 66.1 | R | |
| Monty Stratton (25) | 193 | 1937 | 164.2 | R | |
| Tom Williams (23) | 193 | 1920 | 157.0 | R | |
| 140. | Chet Brewer (19) | 192 | 1926 | 121.1 | R |
| Mort Cooper (29) | 192 | 1942 | 278.2 | R | |
| Nelson Dean (26) | 192 | 1925 | 134.2 | R | |
| Clark Griffith+ (28) | 192 | 1898 | 325.2 | R | |
| 144. | Guy Hecker (26) | 191 | 1882 | 104.0 | R |
| Bill Holland (37) | 191 | 1938 | 54.1 | R | |
| Walter Johnson+ (27) | 191 | 1915 | 336.2 | R | |
| Sam Streeter (32) | 191 | 1933 | 116.0 | L | |
| Johnny Wright (26) | 191 | 1943 | 181.0 | R | |
| 149. | William Bell (28) | 190 | 1926 | 177.0 | R |
| Sandy Koufax+ (30) | 190 | 1966 | 323.0 | L | |
| Rank | Player (age that year) | Adjusted ERA+ | Year | IP | Throws |
| Hal Newhouser+ (25) | 190 | 1946 | 292.2 | L | |
| Dazzy Vance+ (37) | 190 | 1928 | 280.1 | R | |
| 153. | Vean Gregg (26) | 189 | 1911 | 244.2 | L |
| Lefty Grove+ (36) | 189 | 1936 | 253.1 | L | |
| George Harney (36) | 189 | 1926 | 149.2 | R | |
| Greg Maddux+ (31) | 189 | 1997 | 232.2 | R | |
| Billy Rhines (27) | 189 | 1896 | 143.0 | R | |
| Dazzy Vance+ (39) | 189 | 1930 | 258.2 | R | |
| Wilbur Wood (29) | 189 | 1971 | 334.0 | L | |
| 160. | Randy Johnson+ (37) | 188 | 2001 | 249.2 | L |
| Amos Rusie+ (23) | 188 | 1894 | 444.0 | R | |
| Warren Spahn+ (32) | 188 | 1953 | 265.2 | L | |
| Smoky Joe Wood (25) | 188 | 1915 | 157.1 | R | |
| 164. | Clay Buchholz (25) | 187 | 2010 | 173.2 | R |
| Willis Flournoy (30) | 187 | 1926 | 62.0 | L | |
| Greg Maddux+ (32) | 187 | 1998 | 251.0 | R | |
| Ed Walsh+ (29) | 187 | 1910 | 369.2 | R | |
| 168. | Eddie Cicotte (29) | 186 | 1913 | 268.0 | R |
| Sandy Koufax+ (28) | 186 | 1964 | 223.0 | L | |
| Luther McDonald (25) | 186 | 1931 | 95.1 | R | |
| Jimmie Newberry (27) | 186 | 1946 | 24.0 | R | |
| Billy Rhines (21) | 186 | 1890 | 401.1 | R | |
| Jack Stivetts (21) | 186 | 1889 | 191.2 | R | |
| Luis Tiant (27) | 186 | 1968 | 258.1 | R | |
| Julio Urías (25) | 186 | 2022 | 175.0 | L | |
| 176. | Hank Aguirre (31) | 185 | 1962 | 216.0 | L |
| Gerrit Cole (28) | 185 | 2019 | 212.1 | R | |
| Lefty Grove+ (30) | 185 | 1930 | 291.0 | L | |
| Lefty Grove+ (39) | 185 | 1939 | 191.0 | L | |
| George Mitchell (31) | 185 | 1931 | 67.1 | R | |
| Bill Powell (28) | 185 | 1947 | 24.0 | R | |
| Ted Radcliffe (27) | 185 | 1930 | 115.1 | R | |
| John Tudor (31) | 185 | 1985 | 275.0 | L | |
| 184. | Leon Day+ (29) | 184 | 1946 | 132.0 | R |
| Bill Foster+ (23) | 184 | 1927 | 217.0 | L | |
| Joe Horlen (26) | 184 | 1964 | 210.2 | R | |
| Randy Johnson+ (35) | 184 | 1999 | 271.2 | L | |
| Booker McDaniel (30) | 184 | 1944 | 57.2 | R | |
| Jimmie Newberry (29) | 184 | 1948 | 58.1 | R | |
| Satchel Paige+ (35) | 184 | 1942 | 72.1 | R | |
| Blake Snell (30) | 184 | 2023 | 180.0 | L | |
| Johnny Wright (24) | 184 | 1941 | 45.2 | R | |
| 193. | Dan Bankhead (21) | 183 | 1941 | 69.1 | R |
| Chris Bassitt (31) | 183 | 2020 | 63.0 | R | |
| Vida Blue (21) | 183 | 1971 | 312.0 | L | |
| Eugene Bremer (28) | 183 | 1945 | 68.0 | R | |
| Walter Johnson+ (22) | 183 | 1910 | 370.0 | R | |
| Rufus Lewis (28) | 183 | 1948 | 77.1 | R | |
| Johnny Taylor (19) | 183 | 1935 | 74.1 | R | |
| Fred Toney (26) | 183 | 1915 | 222.2 | R | |
| Rank | Player (age that year) | Adjusted ERA+ | Year | IP | Throws |
| Ted Trent (24) | 183 | 1928 | 187.0 | R | |
| Elbert Williams (24) | 183 | 1932 | 113.1 | R | |
| 203. | Harry Brecheen (33) | 182 | 1948 | 233.1 | L |
| Steve Carlton+ (27) | 182 | 1972 | 346.1 | L | |
| Chris Carpenter (34) | 182 | 2009 | 192.2 | R | |
| Jack Coombs (27) | 182 | 1910 | 353.0 | R | |
| Andy Cooper+ (28) | 182 | 1925 | 146.2 | L | |
| Jonas Gaines (26) | 182 | 1941 | 67.2 | L | |
| Johan Santana (25) | 182 | 2004 | 228.0 | L | |
| 210. | Lewis Hampton (21) | 181 | 1922 | 159.0 | R |
| Randy Johnson+ (36) | 181 | 2000 | 248.2 | L | |
| Juanelo Mirabal (27) | 181 | 1928 | 61.2 | R | |
| Rube Waddell+ (28) | 181 | 1905 | 328.2 | L | |
| Laymon Yokely (22) | 181 | 1928 | 175.1 | R | |
| 215. | Sandy Alcántara (26) | 180 | 2022 | 228.2 | R |
| Jesse Brown (25) | 180 | 1939 | 30.2 | L | |
| Dylan Cease (26) | 180 | 2022 | 184.0 | R | |
| Jacob deGrom (32) | 180 | 2020 | 68.0 | R | |
| Russ Ford (31) | 180 | 1914 | 247.1 | R | |
| Bill Foster+ (31) | 180 | 1935 | 82.1 | L | |
| Josh Johnson (26) | 180 | 2010 | 183.2 | R | |
| Bret Saberhagen (25) | 180 | 1989 | 262.1 | R | |
| Jason Schmidt (30) | 180 | 2003 | 207.2 | R | |
| 224. | Kevin Appier (25) | 179 | 1993 | 238.2 | R |
| Joe Black (24) | 179 | 1948 | 113.1 | R | |
| Marvin Freeman (31) | 179 | 1994 | 112.2 | R | |
| Clayton Kershaw (29) | 179 | 2017 | 175.0 | L | |
| Phil Niekro+ (28) | 179 | 1967 | 207.0 | R | |
| Orval Overall (28) | 179 | 1909 | 285.0 | R | |
| Mark Prior (22) | 179 | 2003 | 211.1 | R | |
| Hyun Jin Ryu (32) | 179 | 2019 | 182.2 | L | |
| Justin Verlander (36) | 179 | 2019 | 223.0 | R | |
| 233. | Johnny Antonelli (24) | 178 | 1954 | 258.2 | L |
| Henry Boyle (25) | 178 | 1886 | 210.0 | R | |
| Mordecai Brown+ (30) | 178 | 1907 | 233.0 | R | |
| Gentry Jessup (32) | 178 | 1947 | 36.1 | R | |
| Max Lanier (27) | 178 | 1943 | 213.1 | L | |
| Bill McCall (27) | 178 | 1925 | 119.0 | L | |
| Max Scherzer (32) | 178 | 2017 | 200.2 | R | |
| Stephen Strasburg (28) | 178 | 2017 | 175.1 | R | |
| Rube Waddell+ (25) | 178 | 1902 | 276.1 | L | |
| 242. | Fred Anderson (31) | 177 | 1917 | 162.0 | R |
| Whitey Ford+ (29) | 177 | 1958 | 219.1 | L | |
| José Leblanc (26) | 177 | 1920 | 167.0 | R | |
| Derek Lowe (29) | 177 | 2002 | 219.2 | R | |
| Andy Pettitte (33) | 177 | 2005 | 222.1 | L | |
| Jim Willis | 177 | 1935 | 53.0 | R | |
| Smoky Joe Wood (22) | 177 | 1912 | 344.0 | R | |
| 249. | Johnny Allen (32) | 176 | 1937 | 173.0 | R |
| Eddie Cicotte (35) | 176 | 1919 | 306.2 | R | |
| Rank | Player (age that year) | Adjusted ERA+ | Year | IP | Throws |
| Webbo Clarke (19) | 176 | 1947 | 36.0 | L | |
| Roger Clemens (31) | 176 | 1994 | 170.2 | R | |
| Darltie Cooper (24) | 176 | 1927 | 193.2 | R | |
| José Fernández (20) | 176 | 2013 | 172.2 | R | |
| Lefty Gomez+ (25) | 176 | 1934 | 281.2 | L | |
| Randy Johnson+ (40) | 176 | 2004 | 245.2 | L | |
| Harry McCormick (26) | 176 | 1882 | 219.2 | R | |
| Cy Young+ (25) | 176 | 1892 | 453.0 | R | |
| 259. | Al Benton (34) | 175 | 1945 | 191.2 | R |
| Lino Donoso (24) | 175 | 1947 | 78.1 | L | |
| Lefty Grove+ (35) | 175 | 1935 | 273.0 | L | |
| Satchel Paige+ (21) | 175 | 1928 | 132.0 | R | |
| Tom Seaver+ (28) | 175 | 1973 | 290.0 | R | |
| Johnny Wright (23) | 175 | 1940 | 41.1 | R | |
| 265. | Henry Boyle (23) | 174 | 1884 | 150.0 | R |
| Eddie Cicotte (33) | 174 | 1917 | 346.2 | R | |
| Roger Clemens (29) | 174 | 1992 | 246.2 | R | |
| Roger Clemens (35) | 174 | 1998 | 234.2 | R | |
| Andy Cooper+ (40) | 174 | 1937 | 58.2 | L | |
| Bill Foster+ (29) | 174 | 1933 | 83.2 | L | |
| Félix Hernández (24) | 174 | 2010 | 249.2 | R | |
| Tim Keefe+ (28) | 174 | 1885 | 400.0 | R | |
| Harry Krause (20) | 174 | 1909 | 213.0 | L | |
| Thornton Lee (34) | 174 | 1941 | 300.1 | L | |
| Kid Nichols+ (28) | 174 | 1898 | 388.0 | R | |
| Jack Pfiester (28) | 174 | 1906 | 250.2 | L | |
| Bill Powell (29) | 174 | 1948 | 51.2 | R | |
| Dave Righetti (22) | 174 | 1981 | 105.1 | L | |
| Ted Trent (33) | 174 | 1937 | 73.0 | R | |
| Dazzy Vance+ (33) | 174 | 1924 | 308.1 | R | |
| Amos Watson (21) | 174 | 1947 | 101.1 | R | |
| 282. | William Bell (29) | 173 | 1927 | 162.0 | R |
| Mel Harder (24) | 173 | 1934 | 255.1 | R | |
| Claude Hendrix (25) | 173 | 1914 | 362.0 | R | |
| Willie Hutchinson (25) | 173 | 1940 | 48.1 | R | |
| Walter Johnson+ (23) | 173 | 1911 | 322.1 | R | |
| Clayton Kershaw (27) | 173 | 2015 | 232.2 | L | |
| Ted Lyons+ (38) | 173 | 1939 | 172.2 | R | |
| Aaron Nola (25) | 173 | 2018 | 212.1 | R | |
| Ed Rile (23) | 173 | 1923 | 184.2 | R | |
| Chris Sale (25) | 173 | 2014 | 174.0 | L | |
| Jeff Tesreau (24) | 173 | 1912 | 243.0 | R | |
| Will White (27) | 173 | 1882 | 480.0 | R | |
| Hoyt Wilhelm+ (36) | 173 | 1959 | 226.0 | R | |
| 295. | Grover Alexander+ (29) | 172 | 1916 | 389.0 | R |
| Alek Manoah (24) | 172 | 2022 | 196.2 | R | |
| Al Maul (32) | 172 | 1898 | 239.2 | R | |
| Shohei Ohtani (27) | 172 | 2022 | 166.0 | R | |
| Theolic Smith (30) | 172 | 1943 | 89.0 | R | |
| Justin Verlander (28) | 172 | 2011 | 251.0 | R | |
| Rank | Player (age that year) | Adjusted ERA+ | Year | IP | Throws |
| 301. | Dave Barnhill (29) | 171 | 1943 | 127.1 | R |
| William Bell (34) | 171 | 1932 | 51.0 | R | |
| Walker Buehler (26) | 171 | 2021 | 207.2 | R | |
| David Cone (31) | 171 | 1994 | 171.2 | R | |
| Jeff D'Amico (24) | 171 | 2000 | 162.1 | R | |
| Juan Guzmán (29) | 171 | 1996 | 187.2 | R | |
| Guy Hecker (28) | 171 | 1884 | 670.2 | R | |
| Félix Hernández (23) | 171 | 2009 | 238.2 | R | |
| Orel Hershiser (26) | 171 | 1985 | 239.2 | R | |
| Jon Lester (32) | 171 | 2016 | 202.2 | L | |
| Tim Lincecum (25) | 171 | 2009 | 225.1 | R | |
| Ted Lyons+ (41) | 171 | 1942 | 180.1 | R | |
| Rube Marquard+ (29) | 171 | 1916 | 205.0 | L | |
| Square Moore (23) | 171 | 1924 | 121.0 | R | |
| Wilcy Moore (30) | 171 | 1927 | 213.0 | R | |
| Jake Peavy (23) | 171 | 2004 | 166.1 | R | |
| Michael Soroka (21) | 171 | 2019 | 174.2 | R | |
| Dave Stieb (27) | 171 | 1985 | 265.0 | R | |
| Jim Willis | 171 | 1936 | 69.2 | R | |
| 320. | George Bradley (23) | 170 | 1876 | 573.0 | R |
| Corbin Burnes (26) | 170 | 2021 | 167.0 | R | |
| Red Faber+ (32) | 170 | 1921 | 330.2 | R | |
| Whitey Ford+ (35) | 170 | 1964 | 244.2 | L | |
| Mike Garcia (25) | 170 | 1949 | 175.2 | R | |
| Félix Hernández (28) | 170 | 2014 | 236.0 | R | |
| Al Leiter (32) | 170 | 1998 | 193.0 | L | |
| Greg Maddux+ (27) | 170 | 1993 | 267.0 | R | |
| Jim McCormick (26) | 170 | 1883 | 342.0 | R | |
| Terris McDuffie (28) | 170 | 1937 | 76.0 | R | |
| Joe McGinnity+ (33) | 170 | 1904 | 408.0 | R | |
| Kid Nichols+ (20) | 170 | 1890 | 424.0 | R | |
| Juan Padrón (32) | 170 | 1925 | 122.1 | L | |
| Ernie Shore (24) | 170 | 1915 | 247.0 | R | |
| Warren Spahn+ (26) | 170 | 1947 | 289.2 | L | |
| Bucky Walters (30) | 170 | 1939 | 319.0 | R | |
| 336. | Kevin Brown (38) | 169 | 2003 | 211.0 | R |
| John Candelaria (23) | 169 | 1977 | 230.2 | L | |
| Roger Clemens (23) | 169 | 1986 | 254.0 | R | |
| Danny Darwin (34) | 169 | 1990 | 162.2 | R | |
| Jacob deGrom (31) | 169 | 2019 | 204.0 | R | |
| Noodles Hahn (23) | 169 | 1902 | 321.0 | L | |
| Carl Hubbell+ (33) | 169 | 1936 | 304.0 | L | |
| Juan Marichal+ (27) | 169 | 1965 | 295.1 | R | |
| Christy Mathewson+ (27) | 169 | 1908 | 390.2 | R | |
| Jim Palmer+ (29) | 169 | 1975 | 323.0 | R | |
| Luis Tiant (31) | 169 | 1972 | 179.0 | R | |
| Luis Tiant (40) | 169 | 1947 | 79.2 | L | |
| Ed Walsh+ (28) | 169 | 1909 | 230.1 | R | |
| Roy Welmaker (31) | 169 | 1945 | 126.2 | L | |
| 350. | Gene Bearden (27) | 168 | 1948 | 229.2 | L |
| Rank | Player (age that year) | Adjusted ERA+ | Year | IP | Throws |
| Ewell Blackwell (24) | 168 | 1947 | 273.0 | R | |
| Jim Devlin (27) | 168 | 1876 | 622.0 | R | |
| Tom Glavine+ (32) | 168 | 1998 | 229.1 | L | |
| Rats Henderson (29) | 168 | 1926 | 178.0 | R | |
| Carl Hubbell+ (31) | 168 | 1934 | 313.0 | L | |
| Ray Kremer (32) | 168 | 1927 | 226.0 | R | |
| Tim Lincecum (24) | 168 | 2008 | 227.0 | R | |
| Juan Marichal+ (31) | 168 | 1969 | 299.2 | R | |
| Jim Missouri (20) | 168 | 1937 | 48.0 | L | |
| Bobo Newsom (32) | 168 | 1940 | 264.0 | R | |
| Kid Nichols+ (27) | 168 | 1897 | 368.0 | R | |
| Gaylord Perry+ (33) | 168 | 1972 | 342.2 | R | |
| Max Scherzer (33) | 168 | 2018 | 220.2 | R | |
| Lefty Wilson (20) | 168 | 1937 | 53.1 | L | |
| Nip Winters (24) | 168 | 1923 | 118.0 | L | |
| 366. | Kevin Brown (35) | 167 | 2000 | 230.0 | R |
| Dick Ellsworth (23) | 167 | 1963 | 290.2 | L | |
| Wilmer Fields (23) | 167 | 1946 | 78.2 | R | |
| Bill Foster+ (28) | 167 | 1932 | 116.1 | L | |
| Roy Halladay+ (33) | 167 | 2010 | 250.2 | R | |
| Cliff Lee (29) | 167 | 2008 | 223.1 | L | |
| Juan Marichal+ (28) | 167 | 1966 | 307.1 | R | |
| Christy Mathewson+ (30) | 167 | 1911 | 307.0 | R | |
| Kevin Millwood (24) | 167 | 1999 | 228.0 | R | |
| Steve Ontiveros (33) | 167 | 1994 | 115.1 | R | |
| Max Scherzer (36) | 167 | 2021 | 179.1 | R | |
| Dizzy Trout (29) | 167 | 1944 | 352.1 | R | |
| Rube Waddell+ (27) | 167 | 1904 | 383.0 | L | |
| Doc White (27) | 167 | 1906 | 219.1 | L | |
| 380. | Grover Alexander+ (32) | 166 | 1919 | 235.0 | R |
| Grover Alexander+ (33) | 166 | 1920 | 363.1 | R | |
| Allan Anderson (24) | 166 | 1988 | 202.1 | L | |
| Ray Brown+ (25) | 166 | 1933 | 69.1 | R | |
| Bill Byrd (35) | 166 | 1943 | 135.0 | R | |
| Buzz Capra (26) | 166 | 1974 | 217.0 | R | |
| Spoon Carter (32) | 166 | 1935 | 55.2 | R | |
| Kyle Freeland (25) | 166 | 2018 | 202.1 | L | |
| Max Fried (28) | 166 | 2022 | 185.1 | L | |
| Greg Maddux+ (26) | 166 | 1992 | 268.0 | R | |
| Satchel Paige+ (23) | 166 | 1930 | 75.1 | R | |
| Willie Powell (23) | 166 | 1927 | 140.0 | R | |
| Johan Santana (29) | 166 | 2008 | 234.1 | L | |
| Herb Score (23) | 166 | 1956 | 249.1 | L | |
| Cy Young+ (35) | 166 | 1902 | 384.2 | R | |
| 395. | Roger Clemens (28) | 165 | 1991 | 271.1 | R |
| Jonas Gaines (27) | 165 | 1942 | 84.1 | L | |
| Carl Glass (26) | 165 | 1924 | 117.1 | L | |
| Tom Glover (24) | 165 | 1937 | 53.1 | L | |
| Lefty Grove+ (26) | 165 | 1926 | 258.0 | L | |
| Tim Hudson (27) | 165 | 2003 | 240.0 | R | |
| Rank | Player (age that year) | Adjusted ERA+ | Year | IP | Throws |
| Jon Matlack (28) | 165 | 1978 | 270.0 | L | |
| Sam McDowell (25) | 165 | 1968 | 269.0 | L | |
| Earl Moore (25) | 165 | 1903 | 247.2 | R | |
| Juan Padrón (29) | 165 | 1922 | 171.0 | L | |
| Roy Partlow (33) | 165 | 1945 | 113.0 | L | |
| Howie Pollet (25) | 165 | 1946 | 266.0 | L | |
| Bob Romby (28) | 165 | 1947 | 111.1 | L | |
| Tom Seaver+ (24) | 165 | 1969 | 273.1 | R | |
| Tim Wakefield (28) | 165 | 1995 | 195.1 | R | |
| Lon Warneke (24) | 165 | 1933 | 287.1 | R | |
| Brandon Webb (24) | 165 | 2003 | 180.2 | R | |
| Vic Willis+ (23) | 165 | 1899 | 342.2 | R | |
| 413. | Emery Adams (28) | 164 | 1940 | 136.1 | R |
| Kevin Appier (24) | 164 | 1992 | 208.1 | R | |
| William Bell (27) | 164 | 1925 | 112.0 | R | |
| Frank Bradley (22) | 164 | 1940 | 53.0 | R | |
| Kevin Brown (33) | 164 | 1998 | 257.0 | R | |
| Steve Carlton+ (24) | 164 | 1969 | 236.1 | L | |
| Spud Chandler (38) | 164 | 1946 | 257.1 | R | |
| Stan Coveleski+ (28) | 164 | 1918 | 311.0 | R | |
| Zac Gallen (24) | 164 | 2020 | 72.0 | R | |
| Bob Gibson+ (33) | 164 | 1969 | 314.0 | R | |
| Walter Johnson+ (26) | 164 | 1914 | 371.2 | R | |
| Jimmy Key (26) | 164 | 1987 | 261.0 | L | |
| Mike Mussina+ (25) | 164 | 1994 | 176.1 | R | |
| Andy Porter (27) | 164 | 1938 | 59.0 | R | |
| David Price (29) | 164 | 2015 | 220.1 | L | |
| Hyun Jin Ryu (33) | 164 | 2020 | 67.0 | L | |
| Scott Stratton (20) | 164 | 1890 | 431.0 | R | |
| Justin Verlander (35) | 164 | 2018 | 214.0 | R | |
| Ed Walsh+ (27) | 164 | 1908 | 464.0 | R | |
| Mickey Welch+ (25) | 164 | 1885 | 492.0 | R | |
| 433. | George Britt (29) | 163 | 1925 | 113.2 | R |
| John Clarkson+ (23) | 163 | 1885 | 623.0 | R | |
| Gerrit Cole (32) | 163 | 2023 | 209.0 | R | |
| Johnny Cueto (28) | 163 | 2014 | 243.2 | R | |
| Roosevelt Davis (30) | 163 | 1935 | 86.0 | R | |
| Roosevelt Davis (38) | 163 | 1943 | 61.1 | R | |
| Dick Donovan (33) | 163 | 1961 | 168.2 | R | |
| Bob Feller+ (21) | 163 | 1940 | 320.1 | R | |
| Roy Halladay+ (34) | 163 | 2011 | 233.2 | R | |
| Rats Henderson (27) | 163 | 1924 | 69.2 | R | |
| Vern Law (35) | 163 | 1965 | 217.1 | R | |
| Pedro Martinez+ (26) | 163 | 1998 | 233.2 | R | |
| Bob McClure (33) | 163 | 1924 | 114.2 | R | |
| Tony Mullane (31) | 163 | 1890 | 209.0 | R | |
| Robbie Ray (25) | 163 | 2017 | 162.0 | L | |
| Amos Rusie+ (26) | 163 | 1897 | 322.1 | R | |
| Luis Tiant (39) | 163 | 1946 | 70.0 | L | |
| Bill Walker (27) | 163 | 1931 | 239.1 | L | |
| Rank | Player (age that year) | Adjusted ERA+ | Year | IP | Throws |
| 451. | Steve Carlton+ (35) | 162 | 1980 | 304.0 | L |
| Willie Cornelius (39) | 162 | 1946 | 17.1 | R | |
| Roosevelt Davis (28) | 162 | 1933 | 44.0 | R | |
| Bill Doak (23) | 162 | 1914 | 256.0 | R | |
| Dave Foutz (29) | 162 | 1886 | 504.0 | R | |
| Sonny Gray (29) | 162 | 2019 | 175.1 | R | |
| Bill Hands (29) | 162 | 1969 | 300.0 | R | |
| Teddy Higuera (30) | 162 | 1988 | 227.1 | L | |
| Addie Joss+ (24) | 162 | 1904 | 192.1 | R | |
| Silver King (22) | 162 | 1890 | 461.0 | R | |
| Greg Maddux+ (30) | 162 | 1996 | 245.0 | R | |
| Hal Newhouser+ (21) | 162 | 1942 | 183.2 | L | |
| Gary Nolan (24) | 162 | 1972 | 176.0 | R | |
| José Rijo (28) | 162 | 1993 | 257.1 | R | |
| Bob Romby (29) | 162 | 1948 | 90.0 | L | |
| Aníbal Sánchez (29) | 162 | 2013 | 182.0 | R | |
| Johan Santana (27) | 162 | 2006 | 233.2 | L | |
| Ben Sheets (25) | 162 | 2004 | 237.0 | R | |
| Don Sutton+ (27) | 162 | 1972 | 272.2 | R | |
| Tim Wakefield (35) | 162 | 2002 | 163.1 | R | |
| Nip Winters (26) | 162 | 1925 | 200.0 | L | |
| Smoky Joe Wood (21) | 162 | 1911 | 275.2 | R | |
| 473. | William Bell (32) | 161 | 1930 | 110.0 | R |
| Heliodoro Díaz (25) | 161 | 1930 | 116.0 | R | |
| Charlie Ferguson (23) | 161 | 1886 | 395.2 | R | |
| Ubaldo Jiménez (26) | 161 | 2010 | 221.2 | R | |
| Tommy John (25) | 161 | 1968 | 177.1 | L | |
| Clayton Kershaw (23) | 161 | 2011 | 233.1 | L | |
| Joe Magrane (23) | 161 | 1988 | 165.1 | L | |
| Christy Mathewson+ (31) | 161 | 1912 | 310.0 | R | |
| Dick Matthews | 161 | 1932 | 116.1 | ||
| Sam McDowell (22) | 161 | 1965 | 273.0 | L | |
| Barney Pelty (25) | 161 | 1906 | 260.2 | R | |
| Allie Reynolds (35) | 161 | 1952 | 244.1 | R | |
| Elmer Riddle (26) | 161 | 1941 | 216.2 | R | |
| Bullet Rogan+ (33) | 161 | 1927 | 155.1 | R | |
| Red Ryan (25) | 161 | 1923 | 112.2 | R | |
| Mike Scott (31) | 161 | 1986 | 275.1 | R | |
| Hilton Smith+ (32) | 161 | 1939 | 111.1 | R | |
| Don Sutton+ (35) | 161 | 1980 | 212.1 | R | |
| Bill Swift (30) | 161 | 1992 | 164.2 | R | |
| Justin Verlander (29) | 161 | 2012 | 238.1 | R | |
| George Weidman (20) | 161 | 1881 | 115.0 | R | |
| Joe Williams+ (43) | 161 | 1929 | 129.2 | R | |
| Brandon Woodruff (28) | 161 | 2021 | 179.1 | R | |
| 496. | Grover Alexander+ (40) | 160 | 1927 | 268.0 | R |
| Johnny Beazley (24) | 160 | 1942 | 215.1 | R | |
| Bill Bernhard (31) | 160 | 1902 | 226.0 | R | |
| Mordecai Brown+ (31) | 160 | 1908 | 312.1 | R | |
| Bill Byrd (36) | 160 | 1944 | 79.0 | R | |
| Rank | Player (age that year) | Adjusted ERA+ | Year | IP | Throws |
| Mike Caldwell (29) | 160 | 1978 | 293.1 | L | |
| Bob Caruthers (21) | 160 | 1885 | 482.1 | R | |
| Curt Davis (30) | 160 | 1934 | 274.1 | R | |
| Russ Ford (27) | 160 | 1910 | 299.2 | R | |
| Lefty Grove+ (32) | 160 | 1932 | 291.2 | L | |
| Lefty Grove+ (38) | 160 | 1938 | 163.2 | L | |
| Lefty Holmes (27) | 160 | 1934 | 107.0 | L | |
| Tommy Johnson (23) | 160 | 1938 | 95.0 | R | |
| Corey Kluber (28) | 160 | 2014 | 235.2 | R | |
| Jerry Koosman (26) | 160 | 1969 | 241.0 | L | |
| Dave Koslo (29) | 160 | 1949 | 212.0 | L | |
| Sandy Koufax+ (29) | 160 | 1965 | 335.2 | L | |
| Cliff Lee (32) | 160 | 2011 | 232.2 | L | |
| Hubert Lockhart (24) | 160 | 1923 | 101.0 | L | |
| Kenta Maeda (32) | 160 | 2020 | 66.2 | R | |
| Johnny Markham (34) | 160 | 1943 | 49.0 | R | |
| Daisuke Matsuzaka (27) | 160 | 2008 | 167.2 | R | |
| Rudy May (35) | 160 | 1980 | 175.1 | L | |
| Booker McDaniel (28) | 160 | 1942 | 59.0 | R | |
| Willie Mitchell (23) | 160 | 1913 | 217.0 | L | |
| Tony Mullane (24) | 160 | 1883 | 460.2 | R | |
| Kid Nichols+ (26) | 160 | 1896 | 372.1 | R | |
| Gary Peters (29) | 160 | 1966 | 204.2 | L | |
| Hippo Vaughn (31) | 160 | 1919 | 306.2 | L | |
| Adam Wainwright (28) | 160 | 2010 | 230.1 | R | |
| Lon Warneke (23) | 160 | 1932 | 277.0 | R | |
| Jim Willis | 160 | 1933 | 67.0 | R | |
| Carlos Zambrano (23) | 160 | 2004 | 209.2 | R |
