| Player | Innings Pitched |
|---|---|
| Pete Alexander | 1045.163 |
| Addie Joss | 1036.100 |
| Ed Plank | 1023.767 |
| Joe McGinnity | 1022.500 |
| Christy Mathewson | 1018.993 |
| Walter Johnson | 1009.200 |
| Rube Waddell | 1008.197 |
| Ed Walsh | 968.563 |
| Jack Chesbro | 961.067 |
| Mordecai Brown | 957.900 |
| Bob Gibson | 925.127 |
| Tom Seaver | 898.227 |
| Juan Marichal | 897.333 |
| Greg Maddux | 893.000 |
| Carl Mays | 859.933 |
| Cy Young | 859.363 |
| Nolan Ryan | 837.267 |
| Chief Bender | 835.967 |
| Sandy Koufax | 827.100 |
| Jim Palmer | 825.260 |
| Warren Spahn | 820.233 |
| Vic Willis | 793.167 |
| Steve Carlton | 783.067 |
| Don Sutton | 762.830 |
| Bert Blyleven | 757.130 |
| Babe P. Ruth | 748.467 |
| Curt Schilling | 743.280 |
| Bret Saberhagen | 741.533 |
| Bob Feller | 724.967 |
| Pedro Martinez | 722.883 |