Single-Season Leaders & Records for Wins
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| Rank | Player (age that year) | Wins | Year | IP | Throws |
|---|---|---|---|---|---|
| 1. | Old Hoss Radbourn+ (29) | 60 | 1884 | 678.2 | R |
| 2. | John Clarkson+ (23) | 53 | 1885 | 623.0 | R |
| 3. | Guy Hecker (28) | 52 | 1884 | 670.2 | R |
| 4. | John Clarkson+ (27) | 49 | 1889 | 620.0 | R |
| 5. | Charlie Buffinton (23) | 48 | 1884 | 587.0 | R |
| Old Hoss Radbourn+ (28) | 48 | 1883 | 632.1 | R | |
| 7. | Al Spalding+ (25) | 47 | 1876 | 528.2 | R |
| John Ward+ (19) | 47 | 1879 | 587.0 | R | |
| 9. | Pud Galvin+ (26) | 46 | 1883 | 656.1 | R |
| Pud Galvin+ (27) | 46 | 1884 | 636.1 | R | |
| Matt Kilroy (21) | 46 | 1887 | 589.1 | L | |
| 12. | George Bradley (23) | 45 | 1876 | 573.0 | R |
| Silver King (20) | 45 | 1888 | 584.2 | R | |
| Jim McCormick (23) | 45 | 1880 | 657.2 | R | |
| 15. | Bill Hutchison (31) | 44 | 1891 | 561.0 | R |
| Mickey Welch+ (25) | 44 | 1885 | 492.0 | R | |
| 17. | Tommy Bond (23) | 43 | 1879 | 555.1 | R |
| Larry Corcoran (20) | 43 | 1880 | 536.1 | R | |
| Billy Taylor (29) | 43 | 1884 | 523.0 | R | |
| Will White (24) | 43 | 1879 | 680.0 | R | |
| Will White (28) | 43 | 1883 | 577.0 | R | |
| 22. | Lady Baldwin (27) | 42 | 1886 | 487.0 | L |
| Tim Keefe+ (29) | 42 | 1886 | 535.0 | R | |
| 24. | Jack Chesbro+ (30) | 41 | 1904 | 454.2 | R |
| Dave Foutz (29) | 41 | 1886 | 504.0 | R | |
| Bill Hutchison (30) | 41 | 1890 | 603.0 | R | |
| Tim Keefe+ (26) | 41 | 1883 | 619.0 | R | |
| Ed Morris (23) | 41 | 1886 | 555.1 | L | |
| Charlie Sweeney (21) | 41 | 1884 | 492.0 | R | |
| 30. | Tommy Bond (21) | 40 | 1877 | 521.0 | R |
| Tommy Bond (22) | 40 | 1878 | 532.2 | R | |
| Bob Caruthers (21) | 40 | 1885 | 482.1 | R | |
| Bob Caruthers (25) | 40 | 1889 | 445.0 | R | |
| Jim McCormick (27) | 40 | 1884 | 569.0 | R | |
| Bill Sweeney (26) | 40 | 1884 | 538.0 | R | |
| Ed Walsh+ (27) | 40 | 1908 | 464.0 | R | |
| Will White (27) | 40 | 1882 | 480.0 | R | |
| 38. | Ed Morris (22) | 39 | 1885 | 581.0 | L |
| John Ward+ (20) | 39 | 1880 | 595.0 | R | |
| Mickey Welch+ (24) | 39 | 1884 | 557.1 | R | |
| 41. | John Clarkson+ (25) | 38 | 1887 | 523.0 | R |
| Kid Gleason (24) | 38 | 1890 | 506.0 | R | |
| Toad Ramsey (21) | 38 | 1886 | 588.2 | L | |
| 44. | Pud Galvin+ (22) | 37 | 1879 | 593.0 | R |
| Tim Keefe+ (27) | 37 | 1884 | 483.0 | R | |
| Jack Lynch (27) | 37 | 1884 | 496.0 | R | |
| Christy Mathewson+ (27) | 37 | 1908 | 390.2 | R | |
| Toad Ramsey (22) | 37 | 1887 | 561.0 | L | |
| Jim Whitney (25) | 37 | 1883 | 514.0 | R | |
| 50. | John Clarkson+ (24) | 36 | 1886 | 466.2 | R |
| Rank | Player (age that year) | Wins | Year | IP | Throws |
| Bill Hutchison (32) | 36 | 1892 | 622.0 | R | |
| Walter Johnson+ (25) | 36 | 1913 | 346.0 | R | |
| Frank Killen (22) | 36 | 1893 | 415.0 | L | |
| Jim McCormick (25) | 36 | 1882 | 595.2 | R | |
| Sadie McMahon (22) | 36 | 1890 | 509.0 | R | |
| Tony Mullane (25) | 36 | 1884 | 567.0 | R | |
| Amos Rusie+ (23) | 36 | 1894 | 444.0 | R | |
| Cy Young+ (25) | 36 | 1892 | 453.0 | R | |
| 59. | Larry Corcoran (24) | 35 | 1884 | 516.2 | R |
| Jim Devlin (28) | 35 | 1877 | 559.0 | R | |
| Tim Keefe+ (30) | 35 | 1887 | 476.2 | R | |
| Tim Keefe+ (31) | 35 | 1888 | 434.1 | R | |
| Silver King (21) | 35 | 1889 | 458.0 | R | |
| Joe McGinnity+ (33) | 35 | 1904 | 408.0 | R | |
| Sadie McMahon (23) | 35 | 1891 | 503.0 | R | |
| Tony Mullane (24) | 35 | 1883 | 460.2 | R | |
| Kid Nichols+ (22) | 35 | 1892 | 453.0 | R | |
| Ed Seward (21) | 35 | 1888 | 518.2 | R | |
| Jack Stivetts (24) | 35 | 1892 | 415.2 | R | |
| Cy Young+ (28) | 35 | 1895 | 369.2 | R | |
| 71. | Larry Corcoran (23) | 34 | 1883 | 473.2 | R |
| George Haddock (24) | 34 | 1891 | 379.2 | R | |
| Ed Morris (21) | 34 | 1884 | 429.2 | L | |
| Kid Nichols+ (23) | 34 | 1893 | 425.0 | R | |
| Elmer Smith (19) | 34 | 1887 | 447.1 | L | |
| Scott Stratton (20) | 34 | 1890 | 431.0 | R | |
| Mickey Welch+ (20) | 34 | 1880 | 574.0 | R | |
| Will White (29) | 34 | 1884 | 456.0 | R | |
| Smoky Joe Wood (22) | 34 | 1912 | 344.0 | R | |
| 80. | Grover Alexander+ (29) | 33 | 1916 | 389.0 | R |
| Mark Baldwin (26) | 33 | 1890 | 492.0 | R | |
| John Clarkson+ (26) | 33 | 1888 | 483.1 | R | |
| John Clarkson+ (29) | 33 | 1891 | 460.2 | R | |
| Dave Foutz (28) | 33 | 1885 | 407.2 | R | |
| Walter Johnson+ (24) | 33 | 1912 | 369.0 | R | |
| Christy Mathewson+ (23) | 33 | 1904 | 367.2 | R | |
| Jouett Meekin (27) | 33 | 1894 | 418.0 | R | |
| Tony Mullane (27) | 33 | 1886 | 529.2 | R | |
| Henry Porter (27) | 33 | 1885 | 481.2 | R | |
| Old Hoss Radbourn+ (27) | 33 | 1882 | 466.0 | R | |
| Amos Rusie+ (20) | 33 | 1891 | 500.1 | R | |
| Amos Rusie+ (22) | 33 | 1893 | 482.0 | R | |
| Jack Stivetts (23) | 33 | 1891 | 440.0 | R | |
| Mickey Welch+ (26) | 33 | 1886 | 500.0 | R | |
| Cy Young+ (26) | 33 | 1893 | 422.2 | R | |
| Cy Young+ (34) | 33 | 1901 | 371.1 | R | |
| 97. | Ice Box Chamberlain (21) | 32 | 1889 | 421.2 | R |
| Jesse Duryea (29) | 32 | 1889 | 401.0 | R | |
| Bob Emslie (25) | 32 | 1884 | 455.1 | R | |
| Tim Keefe+ (28) | 32 | 1885 | 400.0 | R | |
| Rank | Player (age that year) | Wins | Year | IP | Throws |
| Silver King (19) | 32 | 1887 | 390.0 | R | |
| Kid Nichols+ (24) | 32 | 1894 | 407.0 | R | |
| Lee Richmond (23) | 32 | 1880 | 590.2 | L | |
| Amos Rusie+ (21) | 32 | 1892 | 541.0 | R | |
| Gus Weyhing (25) | 32 | 1892 | 469.2 | R | |
| Cy Young+ (35) | 32 | 1902 | 384.2 | R | |
| 107. | Grover Alexander+ (28) | 31 | 1915 | 376.1 | R |
| Jim Bagby (30) | 31 | 1920 | 339.2 | R | |
| Tommy Bond (20) | 31 | 1876 | 408.0 | R | |
| Jack Coombs (27) | 31 | 1910 | 353.0 | R | |
| Larry Corcoran (21) | 31 | 1881 | 396.2 | R | |
| Lefty Grove+ (31) | 31 | 1931 | 288.2 | L | |
| Pink Hawley (22) | 31 | 1895 | 444.1 | R | |
| Bill Hoffer (24) | 31 | 1895 | 314.0 | R | |
| Terry Larkin (23) | 31 | 1879 | 513.1 | R | |
| Christy Mathewson+ (24) | 31 | 1905 | 338.2 | R | |
| Jim McCormick (29) | 31 | 1886 | 347.2 | R | |
| Joe McGinnity+ (32) | 31 | 1903 | 434.0 | R | |
| Denny McLain (24) | 31 | 1968 | 336.0 | R | |
| Tony Mullane (28) | 31 | 1887 | 416.1 | R | |
| Kid Nichols+ (27) | 31 | 1897 | 368.0 | R | |
| Kid Nichols+ (28) | 31 | 1898 | 388.0 | R | |
| Gus Weyhing (24) | 31 | 1891 | 450.0 | R | |
| Jim Whitney (23) | 31 | 1881 | 552.1 | R | |
| 125. | Grover Alexander+ (30) | 30 | 1917 | 388.0 | R |
| Bob Caruthers (22) | 30 | 1886 | 387.1 | R | |
| Pete Conway (21) | 30 | 1888 | 391.0 | R | |
| Dizzy Dean+ (24) | 30 | 1934 | 311.2 | R | |
| Jim Devlin (27) | 30 | 1876 | 622.0 | R | |
| Charlie Ferguson (23) | 30 | 1886 | 395.2 | R | |
| Hank Gastright (25) | 30 | 1890 | 401.1 | R | |
| Pretzels Getzien (22) | 30 | 1886 | 386.2 | R | |
| Guy Hecker (29) | 30 | 1885 | 480.0 | R | |
| Frank Killen (25) | 30 | 1896 | 432.1 | L | |
| Silver King (22) | 30 | 1890 | 461.0 | R | |
| Tom Lovett (26) | 30 | 1890 | 372.0 | R | |
| Bobby Mathews (31) | 30 | 1883 | 381.0 | R | |
| Bobby Mathews (32) | 30 | 1884 | 430.2 | R | |
| Bobby Mathews (33) | 30 | 1885 | 422.1 | R | |
| Christy Mathewson+ (22) | 30 | 1903 | 366.1 | R | |
| Tony Mullane (23) | 30 | 1882 | 460.1 | R | |
| Kid Nichols+ (21) | 30 | 1891 | 425.1 | R | |
| Kid Nichols+ (26) | 30 | 1896 | 372.1 | R | |
| Dupee Shaw (25) | 30 | 1884 | 543.1 | L | |
| Gus Weyhing (22) | 30 | 1889 | 449.0 | R | |
| Gus Weyhing (23) | 30 | 1890 | 390.0 | R | |
| Will White (23) | 30 | 1878 | 468.0 | R | |
| 148. | Mordecai Brown+ (31) | 29 | 1908 | 312.1 | R |
| Charlie Buffinton (30) | 29 | 1891 | 363.2 | R | |
| Bob Caruthers (23) | 29 | 1887 | 341.0 | R | |
| Rank | Player (age that year) | Wins | Year | IP | Throws |
| Bob Caruthers (24) | 29 | 1888 | 391.2 | R | |
| Eddie Cicotte (35) | 29 | 1919 | 306.2 | R | |
| George Derby (23) | 29 | 1881 | 494.2 | R | |
| Pud Galvin+ (29) | 29 | 1886 | 434.2 | R | |
| Pretzels Getzien (23) | 29 | 1887 | 366.2 | R | |
| George Haddock (25) | 29 | 1892 | 381.1 | R | |
| Claude Hendrix (25) | 29 | 1914 | 362.0 | R | |
| Frank Killen (21) | 29 | 1892 | 459.2 | L | |
| Matt Kilroy (20) | 29 | 1886 | 583.0 | L | |
| Matt Kilroy (23) | 29 | 1889 | 480.2 | L | |
| Terry Larkin (21) | 29 | 1877 | 501.0 | R | |
| Terry Larkin (22) | 29 | 1878 | 506.0 | R | |
| Ed Morris (25) | 29 | 1888 | 480.0 | L | |
| George Mullin (28) | 29 | 1909 | 303.2 | R | |
| Hal Newhouser+ (23) | 29 | 1944 | 312.1 | L | |
| Amos Rusie+ (19) | 29 | 1890 | 548.2 | R | |
| 167. | Grover Alexander+ (24) | 28 | 1911 | 367.0 | R |
| Bob Barr (33) | 28 | 1890 | 493.1 | R | |
| Charlie Buffinton (27) | 28 | 1888 | 400.1 | R | |
| Charlie Buffinton (28) | 28 | 1889 | 380.0 | R | |
| Dan Casey (24) | 28 | 1887 | 390.1 | L | |
| Jack Chesbro+ (28) | 28 | 1902 | 286.1 | R | |
| Eddie Cicotte (33) | 28 | 1917 | 346.2 | R | |
| Jack Coombs (28) | 28 | 1911 | 336.2 | R | |
| Bert Cunningham (32) | 28 | 1898 | 362.0 | R | |
| George Cuppy (22) | 28 | 1892 | 376.0 | R | |
| Hugh Daily (36) | 28 | 1884 | 500.2 | R | |
| Dizzy Dean+ (25) | 28 | 1935 | 325.1 | R | |
| Pud Galvin+ (24) | 28 | 1881 | 474.0 | R | |
| Pud Galvin+ (25) | 28 | 1882 | 445.1 | R | |
| Pud Galvin+ (30) | 28 | 1887 | 440.2 | R | |
| Fred Goldsmith (26) | 28 | 1882 | 405.0 | R | |
| Lefty Grove+ (30) | 28 | 1930 | 291.0 | L | |
| Guy Hecker (27) | 28 | 1883 | 469.0 | R | |
| Jay Hughes (25) | 28 | 1899 | 291.2 | R | |
| Walter Johnson+ (26) | 28 | 1914 | 371.2 | R | |
| Tim Keefe+ (32) | 28 | 1889 | 364.0 | R | |
| Phil Knell (26) | 28 | 1891 | 462.0 | L | |
| Jim McCormick (26) | 28 | 1883 | 342.0 | R | |
| Joe McGinnity+ (28) | 28 | 1899 | 366.1 | R | |
| Joe McGinnity+ (29) | 28 | 1900 | 343.0 | R | |
| Jumbo McGinnis (29) | 28 | 1883 | 382.2 | ||
| Old Hoss Radbourn+ (30) | 28 | 1885 | 445.2 | R | |
| Billy Rhines (21) | 28 | 1890 | 401.1 | R | |
| Robin Roberts+ (25) | 28 | 1952 | 330.0 | R | |
| Amos Rusie+ (26) | 28 | 1897 | 322.1 | R | |
| Dazzy Vance+ (33) | 28 | 1924 | 308.1 | R | |
| Gus Weyhing (21) | 28 | 1888 | 404.0 | R | |
| Cy Young+ (29) | 28 | 1896 | 414.1 | R | |
| Cy Young+ (36) | 28 | 1903 | 341.2 | R | |
| Rank | Player (age that year) | Wins | Year | IP | Throws |
| 201. | Grover Alexander+ (27) | 27 | 1914 | 355.0 | R |
| Grover Alexander+ (33) | 27 | 1920 | 363.1 | R | |
| Mark Baldwin (25) | 27 | 1889 | 513.2 | R | |
| Theodore Breitenstein (25) | 27 | 1894 | 447.1 | L | |
| Mordecai Brown+ (32) | 27 | 1909 | 342.2 | R | |
| Steve Carlton+ (27) | 27 | 1972 | 346.1 | L | |
| Larry Corcoran (22) | 27 | 1882 | 355.2 | R | |
| Bob Feller+ (21) | 27 | 1940 | 320.1 | R | |
| Pink Hawley (25) | 27 | 1898 | 331.0 | R | |
| Hardie Henderson (21) | 27 | 1884 | 439.1 | R | |
| Walter Johnson+ (27) | 27 | 1915 | 336.2 | R | |
| Addie Joss+ (27) | 27 | 1907 | 338.2 | R | |
| Sandy Koufax+ (30) | 27 | 1966 | 323.0 | L | |
| Dolf Luque (32) | 27 | 1923 | 322.0 | R | |
| Christy Mathewson+ (29) | 27 | 1910 | 318.1 | R | |
| Carl Mays (29) | 27 | 1921 | 336.2 | R | |
| Joe McGinnity+ (35) | 27 | 1906 | 339.2 | R | |
| James McJames (23) | 27 | 1898 | 374.0 | R | |
| Don Newcombe (30) | 27 | 1956 | 268.0 | R | |
| Kid Nichols+ (20) | 27 | 1890 | 424.0 | R | |
| Kid Nichols+ (25) | 27 | 1895 | 390.2 | R | |
| Al Orth (33) | 27 | 1906 | 338.2 | R | |
| Togie Pittinger (30) | 27 | 1902 | 389.1 | R | |
| Henry Porter (28) | 27 | 1886 | 424.0 | R | |
| Old Hoss Radbourn+ (31) | 27 | 1886 | 509.1 | R | |
| Old Hoss Radbourn+ (35) | 27 | 1890 | 343.0 | R | |
| Eddie Rommel (24) | 27 | 1922 | 294.0 | R | |
| Tom Seaton (25) | 27 | 1913 | 322.1 | R | |
| Urban Shocker (30) | 27 | 1921 | 326.2 | R | |
| Ed Stein (22) | 27 | 1892 | 377.1 | R | |
| Jack Stivetts (22) | 27 | 1890 | 419.1 | R | |
| Dizzy Trout (29) | 27 | 1944 | 352.1 | R | |
| George Uhle (27) | 27 | 1926 | 318.1 | R | |
| Lee Viau (21) | 27 | 1888 | 387.2 | R | |
| Rube Waddell+ (28) | 27 | 1905 | 328.2 | L | |
| Ed Walsh+ (30) | 27 | 1911 | 368.2 | R | |
| Ed Walsh+ (31) | 27 | 1912 | 393.0 | R | |
| Bucky Walters (30) | 27 | 1939 | 319.0 | R | |
| Bob Welch (33) | 27 | 1990 | 238.0 | R | |
| Mickey Welch+ (29) | 27 | 1889 | 375.0 | R | |
| Doc White (28) | 27 | 1907 | 291.0 | L | |
| Vic Willis+ (23) | 27 | 1899 | 342.2 | R | |
| Vic Willis+ (26) | 27 | 1902 | 410.0 | R | |
| Cy Young+ (24) | 27 | 1891 | 423.2 | R | |
| 245. | Mark Baldwin (28) | 26 | 1892 | 440.1 | R |
| Tommy Bond (24) | 26 | 1880 | 493.0 | R | |
| Mordecai Brown+ (29) | 26 | 1906 | 277.1 | R | |
| Bullet Joe Bush (29) | 26 | 1922 | 255.1 | R | |
| Larry Cheney (26) | 26 | 1912 | 303.1 | R | |
| John Clarkson+ (28) | 26 | 1890 | 383.0 | R | |
| Rank | Player (age that year) | Wins | Year | IP | Throws |
| General Crowder (33) | 26 | 1932 | 327.0 | R | |
| George Cuppy (25) | 26 | 1895 | 353.0 | R | |
| Ed Daily (22) | 26 | 1885 | 440.0 | R | |
| Bob Feller+ (27) | 26 | 1946 | 371.1 | R | |
| Charlie Ferguson (22) | 26 | 1885 | 405.0 | R | |
| Russ Ford (27) | 26 | 1910 | 299.2 | R | |
| Lefty Gomez+ (25) | 26 | 1934 | 281.2 | L | |
| Clark Griffith+ (25) | 26 | 1895 | 353.0 | R | |
| Guy Hecker (30) | 26 | 1886 | 420.2 | R | |
| Carl Hubbell+ (33) | 26 | 1936 | 304.0 | L | |
| Bill James (22) | 26 | 1914 | 332.1 | R | |
| Fred Klobedanz (26) | 26 | 1897 | 309.1 | L | |
| Sandy Koufax+ (29) | 26 | 1965 | 335.2 | L | |
| Ted Lewis (25) | 26 | 1898 | 313.1 | R | |
| Juan Marichal+ (30) | 26 | 1968 | 325.2 | R | |
| Rube Marquard+ (25) | 26 | 1912 | 294.2 | L | |
| Christy Mathewson+ (30) | 26 | 1911 | 307.0 | R | |
| Carl Mays (28) | 26 | 1920 | 312.0 | R | |
| Jim McCormick (24) | 26 | 1881 | 526.0 | R | |
| Joe McGinnity+ (30) | 26 | 1901 | 382.0 | R | |
| Jouett Meekin (29) | 26 | 1896 | 334.1 | R | |
| Frank Mountain (23) | 26 | 1883 | 503.0 | R | |
| Tony Mullane (29) | 26 | 1888 | 380.1 | R | |
| Hal Newhouser+ (25) | 26 | 1946 | 292.2 | L | |
| Eddie Plank+ (28) | 26 | 1904 | 357.1 | L | |
| Eddie Plank+ (36) | 26 | 1912 | 259.2 | L | |
| Jack Quinn (30) | 26 | 1914 | 342.2 | R | |
| Charlie Root (28) | 26 | 1927 | 309.0 | R | |
| Dick Rudolph (26) | 26 | 1914 | 336.1 | R | |
| Ed Stein (24) | 26 | 1894 | 350.0 | R | |
| Jack Stivetts (26) | 26 | 1894 | 338.0 | R | |
| Jack Taylor (22) | 26 | 1895 | 335.0 | R | |
| Adonis Terry (25) | 26 | 1890 | 370.0 | R | |
| Jeff Tesreau (26) | 26 | 1914 | 322.1 | R | |
| George Uhle (24) | 26 | 1923 | 357.2 | R | |
| Sam Weaver (26) | 26 | 1882 | 371.0 | R | |
| Mickey Welch+ (28) | 26 | 1888 | 425.1 | R | |
| Gus Weyhing (20) | 26 | 1887 | 466.1 | R | |
| Cy Young+ (27) | 26 | 1894 | 408.2 | R | |
| Cy Young+ (32) | 26 | 1899 | 369.1 | R | |
| Cy Young+ (37) | 26 | 1904 | 380.0 | R | |
| 292. | Al Atkinson (25) | 25 | 1886 | 396.2 | R |
| Jersey Bakley (24) | 25 | 1888 | 532.2 | R | |
| Jesse Barnes (26) | 25 | 1919 | 295.2 | R | |
| Larry Benton (30) | 25 | 1928 | 310.1 | R | |
| George Bradley (31) | 25 | 1884 | 342.0 | R | |
| Mordecai Brown+ (33) | 25 | 1910 | 295.1 | R | |
| Charlie Buffinton (22) | 25 | 1883 | 333.0 | R | |
| Howie Camnitz (27) | 25 | 1909 | 283.0 | R | |
| Ice Box Chamberlain (20) | 25 | 1888 | 308.0 | R | |
| Rank | Player (age that year) | Wins | Year | IP | Throws |
| John Clarkson+ (30) | 25 | 1892 | 389.0 | R | |
| George Cuppy (26) | 25 | 1896 | 358.0 | R | |
| Paul Derringer (32) | 25 | 1939 | 301.0 | R | |
| Bill Donovan (24) | 25 | 1901 | 351.0 | R | |
| Bill Donovan (30) | 25 | 1907 | 271.0 | R | |
| Don Drysdale+ (25) | 25 | 1962 | 314.1 | R | |
| Red Ehret (21) | 25 | 1890 | 359.0 | R | |
| Red Faber+ (32) | 25 | 1921 | 330.2 | R | |
| Cy Falkenberg (34) | 25 | 1914 | 377.1 | R | |
| Bob Feller+ (22) | 25 | 1941 | 343.0 | R | |
| Wes Ferrell (22) | 25 | 1930 | 296.2 | R | |
| Wes Ferrell (27) | 25 | 1935 | 322.1 | R | |
| Dave Ferriss (24) | 25 | 1946 | 274.0 | R | |
| Whitey Ford+ (32) | 25 | 1961 | 283.0 | L | |
| Dave Foutz (30) | 25 | 1887 | 339.1 | R | |
| Fred Goldsmith (27) | 25 | 1883 | 383.1 | R | |
| Burleigh Grimes+ (34) | 25 | 1928 | 330.2 | R | |
| Lefty Grove+ (32) | 25 | 1932 | 291.2 | L | |
| Ron Guidry (27) | 25 | 1978 | 273.2 | L | |
| Hardie Henderson (22) | 25 | 1885 | 539.1 | R | |
| Bill Hoffer (25) | 25 | 1896 | 309.0 | R | |
| Nat Hudson (19) | 25 | 1888 | 333.0 | R | |
| Mickey Hughes (21) | 25 | 1888 | 363.0 | R | |
| Catfish Hunter+ (28) | 25 | 1974 | 318.1 | R | |
| Fergie Jenkins+ (31) | 25 | 1974 | 328.1 | R | |
| Walter Johnson+ (22) | 25 | 1910 | 370.0 | R | |
| Walter Johnson+ (23) | 25 | 1911 | 322.1 | R | |
| Walter Johnson+ (28) | 25 | 1916 | 369.2 | R | |
| Jim Kaat+ (27) | 25 | 1966 | 304.2 | L | |
| Brickyard Kennedy (25) | 25 | 1893 | 382.2 | R | |
| Ed Killian (30) | 25 | 1907 | 314.0 | L | |
| Sandy Koufax+ (27) | 25 | 1963 | 311.0 | L | |
| Gus Krock (22) | 25 | 1888 | 339.2 | R | |
| Sam Leever (31) | 25 | 1903 | 284.1 | R | |
| Mickey Lolich (30) | 25 | 1971 | 376.0 | L | |
| Juan Marichal+ (25) | 25 | 1963 | 321.1 | R | |
| Juan Marichal+ (28) | 25 | 1966 | 307.1 | R | |
| Christy Mathewson+ (28) | 25 | 1909 | 275.1 | R | |
| Christy Mathewson+ (32) | 25 | 1913 | 306.0 | R | |
| George McConnell (37) | 25 | 1915 | 303.0 | R | |
| Jumbo McGinnis (28) | 25 | 1882 | 388.1 | ||
| Sadie McMahon (26) | 25 | 1894 | 275.2 | R | |
| Win Mercer (22) | 25 | 1896 | 366.1 | R | |
| Johnny Morrison (27) | 25 | 1923 | 301.2 | R | |
| Hal Newhouser+ (24) | 25 | 1945 | 313.1 | L | |
| Mel Parnell (27) | 25 | 1949 | 295.1 | L | |
| Jeff Pfeffer (28) | 25 | 1916 | 328.2 | R | |
| Deacon Phillippe (31) | 25 | 1903 | 289.1 | R | |
| Old Hoss Radbourn+ (26) | 25 | 1881 | 325.1 | R | |
| Lee Richmond (24) | 25 | 1881 | 462.1 | L | |
| Rank | Player (age that year) | Wins | Year | IP | Throws |
| Eppa Rixey+ (31) | 25 | 1922 | 313.1 | L | |
| Tom Seaton (26) | 25 | 1914 | 302.2 | R | |
| Tom Seaver+ (24) | 25 | 1969 | 273.1 | R | |
| Ed Seward (20) | 25 | 1887 | 470.2 | R | |
| Cy Seymour (25) | 25 | 1898 | 356.2 | L | |
| Frank Smith (29) | 25 | 1909 | 365.0 | R | |
| Phenomenal Smith (22) | 25 | 1887 | 491.1 | L | |
| Steve Stone (32) | 25 | 1980 | 250.2 | R | |
| Jesse Tannehill (23) | 25 | 1898 | 326.2 | L | |
| Rube Waddell+ (27) | 25 | 1904 | 383.0 | L | |
| Mickey Welch+ (23) | 25 | 1883 | 426.0 | R | |
| George Weidman (21) | 25 | 1882 | 411.0 | R | |
| Vic Willis+ (22) | 25 | 1898 | 311.0 | R | |
| Cy Young+ (31) | 25 | 1898 | 377.2 | R | |
| 365. | Vida Blue (21) | 24 | 1971 | 312.0 | L |
| Ron Bryant (25) | 24 | 1973 | 270.0 | L | |
| Steve Carlton+ (35) | 24 | 1980 | 304.0 | L | |
| Kid Carsey (22) | 24 | 1895 | 342.1 | R | |
| Dan Casey (23) | 24 | 1886 | 369.0 | L | |
| Roger Clemens (23) | 24 | 1986 | 254.0 | R | |
| Tony Cloninger (24) | 24 | 1965 | 279.0 | R | |
| Wilbur Cooper (28) | 24 | 1920 | 327.0 | L | |
| Joe Corbett (21) | 24 | 1897 | 313.0 | R | |
| Stan Coveleski+ (29) | 24 | 1919 | 286.0 | R | |
| Stan Coveleski+ (30) | 24 | 1920 | 315.0 | R | |
| General Crowder (34) | 24 | 1933 | 299.1 | R | |
| Mike Cuellar (33) | 24 | 1970 | 297.2 | L | |
| George Cuppy (24) | 24 | 1894 | 316.0 | R | |
| Hooks Dauss (25) | 24 | 1915 | 309.2 | R | |
| Dizzy Dean+ (26) | 24 | 1936 | 315.0 | R | |
| Frank Dwyer (28) | 24 | 1896 | 288.2 | R | |
| George Earnshaw (29) | 24 | 1929 | 254.2 | R | |
| Red Faber+ (26) | 24 | 1915 | 299.2 | R | |
| Bob Feller+ (20) | 24 | 1939 | 296.2 | R | |
| Whitey Ford+ (34) | 24 | 1963 | 269.1 | L | |
| Kid Gleason (25) | 24 | 1891 | 418.0 | R | |
| Fred Goldsmith (25) | 24 | 1881 | 330.0 | R | |
| Lefty Gomez+ (23) | 24 | 1932 | 265.1 | L | |
| Dwight Gooden (20) | 24 | 1985 | 276.2 | R | |
| Clark Griffith+ (28) | 24 | 1898 | 325.2 | R | |
| Clark Griffith+ (31) | 24 | 1901 | 266.2 | R | |
| Bob Groom (27) | 24 | 1912 | 316.0 | R | |
| Lefty Grove+ (28) | 24 | 1928 | 261.2 | L | |
| Lefty Grove+ (33) | 24 | 1933 | 275.1 | L | |
| Jesse Haines+ (33) | 24 | 1927 | 300.2 | R | |
| Claude Hendrix (23) | 24 | 1912 | 288.2 | R | |
| LaMarr Hoyt (28) | 24 | 1983 | 260.2 | R | |
| Larry Jackson (33) | 24 | 1964 | 297.2 | R | |
| Fergie Jenkins+ (28) | 24 | 1971 | 325.0 | R | |
| Randy Johnson+ (38) | 24 | 2002 | 260.0 | L | |
| Rank | Player (age that year) | Wins | Year | IP | Throws |
| Addie Joss+ (28) | 24 | 1908 | 325.0 | R | |
| Brickyard Kennedy (26) | 24 | 1894 | 360.2 | R | |
| Rube Marquard+ (24) | 24 | 1911 | 277.2 | L | |
| Christy Mathewson+ (26) | 24 | 1907 | 315.0 | R | |
| Christy Mathewson+ (33) | 24 | 1914 | 312.0 | R | |
| Jumbo McGinnis (30) | 24 | 1884 | 354.1 | ||
| Denny McLain (25) | 24 | 1969 | 325.0 | R | |
| Dave McNally (27) | 24 | 1970 | 296.0 | L | |
| Gaylord Perry+ (33) | 24 | 1972 | 342.2 | R | |
| Jim Perry (34) | 24 | 1970 | 278.2 | R | |
| Wiley Piatt (23) | 24 | 1898 | 306.0 | L | |
| George Pipgras (28) | 24 | 1928 | 300.2 | R | |
| Eddie Plank+ (29) | 24 | 1905 | 346.2 | L | |
| Eddie Plank+ (31) | 24 | 1907 | 343.2 | L | |
| Old Hoss Radbourn+ (32) | 24 | 1887 | 425.0 | R | |
| Ed Reulbach (25) | 24 | 1908 | 297.2 | R | |
| Schoolboy Rowe (24) | 24 | 1934 | 266.0 | R | |
| Babe Ruth+ (22) | 24 | 1917 | 326.1 | L | |
| Johnny Sain (30) | 24 | 1948 | 314.2 | R | |
| Jack Sanford (33) | 24 | 1962 | 265.1 | R | |
| Jim Scott (27) | 24 | 1915 | 296.1 | R | |
| Bobby Shantz (26) | 24 | 1952 | 279.2 | L | |
| Bob Shawkey (25) | 24 | 1916 | 276.2 | R | |
| Urban Shocker (31) | 24 | 1922 | 348.0 | R | |
| John Smoltz+ (29) | 24 | 1996 | 253.2 | R | |
| Harry Staley (24) | 24 | 1891 | 324.0 | R | |
| George Suggs (31) | 24 | 1914 | 319.1 | R | |
| Ed Summers (23) | 24 | 1908 | 301.0 | R | |
| Jesse Tannehill (24) | 24 | 1899 | 322.0 | L | |
| Fred Toney (28) | 24 | 1917 | 339.2 | R | |
| Justin Verlander (28) | 24 | 2011 | 251.0 | R | |
| Tom Vickery (23) | 24 | 1890 | 382.0 | R | |
| Frank Viola (28) | 24 | 1988 | 255.1 | L | |
| Rube Waddell+ (25) | 24 | 1902 | 276.1 | L | |
| Ed Walsh+ (26) | 24 | 1907 | 422.1 | R | |
| Sam Weaver (27) | 24 | 1883 | 400.2 | R | |
| Jim Whitney (24) | 24 | 1882 | 420.0 | R | |
| Jim Whitney (29) | 24 | 1887 | 404.2 | R | |
| Wilbur Wood (30) | 24 | 1972 | 376.2 | L | |
| Wilbur Wood (31) | 24 | 1973 | 359.1 | L | |
| 441. | Frank Allen (26) | 23 | 1915 | 283.1 | L |
| Nick Altrock (28) | 23 | 1905 | 315.2 | L | |
| Jim Bagby (27) | 23 | 1917 | 320.2 | R | |
| Red Barrett (30) | 23 | 1945 | 284.2 | R | |
| Charles Bender+ (26) | 23 | 1910 | 250.0 | R | |
| Bill Bernhard (33) | 23 | 1904 | 320.2 | R | |
| Theodore Breitenstein (28) | 23 | 1897 | 320.1 | L | |
| Tommy Bridges (29) | 23 | 1936 | 294.2 | R | |
| Dick Burns (20) | 23 | 1884 | 329.2 | L | |
| Steve Carlton+ (32) | 23 | 1977 | 283.0 | L | |
| Rank | Player (age that year) | Wins | Year | IP | Throws |
| Steve Carlton+ (37) | 23 | 1982 | 295.2 | L | |
| Bob Caruthers (26) | 23 | 1890 | 300.0 | R | |
| Jack Chesbro+ (32) | 23 | 1906 | 325.0 | R | |
| Joe Coleman (26) | 23 | 1973 | 288.1 | R | |
| Wilbur Cooper (30) | 23 | 1922 | 294.2 | L | |
| Stan Coveleski+ (31) | 23 | 1921 | 315.0 | R | |
| Mike Cuellar (32) | 23 | 1969 | 290.2 | L | |
| Hugh Daily (35) | 23 | 1883 | 378.2 | R | |
| Bill Dinneen (28) | 23 | 1904 | 335.2 | R | |
| Don Drysdale+ (28) | 23 | 1965 | 308.1 | R | |
| Jack Dunn (26) | 23 | 1899 | 299.1 | R | |
| Red Faber+ (31) | 23 | 1920 | 319.0 | R | |
| Cy Falkenberg (33) | 23 | 1913 | 276.0 | R | |
| Wes Ferrell (24) | 23 | 1932 | 287.2 | R | |
| Mike Flanagan (27) | 23 | 1979 | 265.2 | L | |
| Jocko Flynn (22) | 23 | 1886 | 257.0 | R | |
| Frank Foreman (26) | 23 | 1889 | 414.0 | R | |
| Pud Galvin+ (31) | 23 | 1888 | 437.1 | R | |
| Pud Galvin+ (32) | 23 | 1889 | 341.0 | R | |
| Pretzels Getzien (26) | 23 | 1890 | 350.0 | R | |
| Bob Gibson+ (34) | 23 | 1970 | 294.0 | R | |
| Vean Gregg (26) | 23 | 1911 | 244.2 | L | |
| Clark Griffith+ (26) | 23 | 1896 | 317.2 | R | |
| Burleigh Grimes+ (26) | 23 | 1920 | 303.2 | R | |
| Ad Gumbert (22) | 23 | 1890 | 286.1 | R | |
| Noodles Hahn (20) | 23 | 1899 | 309.0 | L | |
| Noodles Hahn (23) | 23 | 1902 | 321.0 | L | |
| Bob Harmon (23) | 23 | 1911 | 348.0 | R | |
| Jack Harper (23) | 23 | 1901 | 308.2 | R | |
| Jack Harper (26) | 23 | 1904 | 293.2 | R | |
| Orel Hershiser (29) | 23 | 1988 | 267.0 | R | |
| Waite Hoyt+ (28) | 23 | 1928 | 273.0 | R | |
| Carl Hubbell+ (30) | 23 | 1933 | 308.2 | L | |
| Carl Hubbell+ (32) | 23 | 1935 | 302.2 | L | |
| Jay Hughes (24) | 23 | 1898 | 300.2 | R | |
| Catfish Hunter+ (29) | 23 | 1975 | 328.0 | R | |
| Danny Jackson (26) | 23 | 1988 | 260.2 | L | |
| Larry Jansen (30) | 23 | 1951 | 278.2 | R | |
| Walter Johnson+ (29) | 23 | 1917 | 326.0 | R | |
| Walter Johnson+ (30) | 23 | 1918 | 326.0 | R | |
| Walter Johnson+ (36) | 23 | 1924 | 277.2 | R | |
| Sad Sam Jones (28) | 23 | 1921 | 298.2 | R | |
| Ed Killian (28) | 23 | 1905 | 313.1 | L | |
| Ellis Kinder (34) | 23 | 1949 | 252.0 | R | |
| Frank Lary (31) | 23 | 1961 | 275.1 | R | |
| Bob Lemon+ (29) | 23 | 1950 | 288.0 | R | |
| Bob Lemon+ (33) | 23 | 1954 | 258.1 | R | |
| Tom Lovett (27) | 23 | 1891 | 365.2 | R | |
| Jack Lynch (28) | 23 | 1885 | 379.0 | R | |
| Nick Maddox (21) | 23 | 1908 | 260.2 | R | |
| Rank | Player (age that year) | Wins | Year | IP | Throws |
| Sal Maglie (34) | 23 | 1951 | 298.0 | R | |
| Jim Maloney (23) | 23 | 1963 | 250.1 | R | |
| Rube Marquard+ (26) | 23 | 1913 | 288.0 | L | |
| Pedro Martínez+ (27) | 23 | 1999 | 213.1 | R | |
| Christy Mathewson+ (31) | 23 | 1912 | 310.0 | R | |
| Sadie McMahon (25) | 23 | 1893 | 346.1 | R | |
| George McQuillan (23) | 23 | 1908 | 359.2 | R | |
| Roscoe Miller (24) | 23 | 1901 | 332.0 | R | |
| Frank Mountain (24) | 23 | 1884 | 360.2 | R | |
| Tony Mullane (32) | 23 | 1891 | 426.1 | R | |
| Phil Niekro+ (30) | 23 | 1969 | 284.1 | R | |
| Orval Overall (26) | 23 | 1907 | 268.1 | R | |
| Jim Palmer+ (29) | 23 | 1975 | 323.0 | R | |
| Herb Pennock+ (32) | 23 | 1926 | 266.1 | L | |
| Gaylord Perry+ (31) | 23 | 1970 | 328.2 | R | |
| Jeff Pfeffer (26) | 23 | 1914 | 315.0 | R | |
| Wiley Piatt (24) | 23 | 1899 | 305.0 | L | |
| Togie Pittinger (33) | 23 | 1905 | 337.1 | R | |
| Eddie Plank+ (27) | 23 | 1903 | 336.0 | L | |
| Eddie Plank+ (35) | 23 | 1911 | 256.2 | L | |
| Jack Powell (23) | 23 | 1898 | 342.0 | R | |
| Jack Powell (24) | 23 | 1899 | 373.0 | R | |
| Jack Powell (29) | 23 | 1904 | 390.1 | R | |
| Bob Purkey (32) | 23 | 1962 | 288.1 | R | |
| Toad Ramsey (25) | 23 | 1890 | 348.2 | L | |
| Robin Roberts+ (26) | 23 | 1953 | 346.2 | R | |
| Robin Roberts+ (27) | 23 | 1954 | 336.2 | R | |
| Robin Roberts+ (28) | 23 | 1955 | 305.0 | R | |
| Amos Rusie+ (24) | 23 | 1895 | 393.1 | R | |
| Babe Ruth+ (21) | 23 | 1916 | 323.2 | L | |
| Bret Saberhagen (25) | 23 | 1989 | 262.1 | R | |
| Curt Schilling (35) | 23 | 2002 | 259.1 | R | |
| Hal Schumacher (23) | 23 | 1934 | 297.0 | R | |
| Dupee Shaw (26) | 23 | 1885 | 399.2 | L | |
| Frank Smith (27) | 23 | 1907 | 310.0 | R | |
| Warren Spahn+ (32) | 23 | 1953 | 265.2 | L | |
| Warren Spahn+ (42) | 23 | 1963 | 259.2 | L | |
| Jack Taylor (21) | 23 | 1894 | 298.0 | R | |
| Jack Taylor (28) | 23 | 1902 | 333.2 | R | |
| Ralph Terry (26) | 23 | 1962 | 298.2 | R | |
| Hippo Vaughn (29) | 23 | 1917 | 295.2 | L | |
| Bucky Walters (35) | 23 | 1944 | 285.0 | R | |
| Gus Weyhing (26) | 23 | 1893 | 345.1 | R | |
| Jim Whitney (26) | 23 | 1884 | 336.0 | R | |
| Lefty Williams (26) | 23 | 1919 | 297.0 | L | |
| Vic Willis+ (30) | 23 | 1906 | 322.0 | R | |
| Vic Willis+ (32) | 23 | 1908 | 304.2 | R | |
| Hooks Wiltse (28) | 23 | 1908 | 330.0 | L | |
| Bill Wise (23) | 23 | 1884 | 364.1 | R | |
| Smoky Joe Wood (21) | 23 | 1911 | 275.2 | R | |
| Rank | Player (age that year) | Wins | Year | IP | Throws |
| Early Wynn+ (32) | 23 | 1952 | 285.2 | R | |
| Early Wynn+ (34) | 23 | 1954 | 270.2 | R | |
| Barry Zito (24) | 23 | 2002 | 229.1 | L |
