1) Cy Young - 7,536 Innings Pitched

2) Pud Galvin - 5,959 Innings Pitched

3) Walter Johnson - 5,923 Innings Pitched

4) Phil Niekro - 5,423 Innings Pitched

5) Nolan Ryan - 5,387 Innings Pitched

6) Gaylord Perry - 5,352 Innings Pitched

7) Don Sutton - 5,281 Innings Pitched

8) Warren Spahn - 5,246 Innings Pitched

9) Steve Carlton - 5,216 Innings Pitched

10) Grover Alexander - 5,128 Innings Pitched