Photo source: Wikimedia Commons, Library of Congress
This post is a list of baseball pitchers who have had at least 350 strikeouts in a season in the MLB as of May 10th, 2020. There are 17 seasons listed below. The photo above is a Matt Kilroy baseball card from 1887. Data source: Baseball-reference.com
1. Matt Kilroy (1886) - 513
2. Toad Ramsey (1886) - 499
3. Hugh Daily (1884) - 483
4. Dupee Shaw (1884) - 451
5. Old Hoss Radbourn (1884) - 441
6. Charlie Buffinton (1884) - 417
7. Guy Hecker (1884) - 385
8. Nolan Ryan (1973) - 383
9. Sandy Koufax (1965) - 382
10. Bill Sweeney (1884) - 374
11. Randy Johnson (2001) - 372
12. Pud Galvin (1884) - 369
13. Mark Baldin (1889) - 368
14. Nolan Ryan (1974) - 367
15. Randy Johnson (1999) - 364
16. Tim Keefe (1883) - 359
17. Toad Ramsey (1887) - 355
