Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
Single-Season Leaders (Strikeouts)
Average
OBP
SLG
OPS
At Bats
Runs
Hits
Doubles
Triples
Homers
RBIs
Walks
Strikeouts
Stolen Bases
Caught Stealing
Sac Hits
Sac Fly
HBP
GIDP
D+/-
Wins
Losses
ERA
WHIP
Innings
Hits Allowed
HR Allowed
Walks (P)
Strikeouts (p)
Complete Games
Saves
Blown Saves
Shutouts
Quality Starts
Wild Pitches
Hit Batters
H/9
BB/9
SO/9
| 1. | Hader, Josh | (mattholland1975) | West Michigan Whitecaps | 373 |
| 2. | Kluber, Corey | (Mitch44) | Scarborough Red Storm | 372 |
| 3. | Cole, Gerrit | (PalinJames) | Erie Spartans | 364 |
| 4. | Kluber, Corey | (Byrnie) | Linndale Bills | 360 |
| 5. | Verlander, Justin | (jdizzle_003) | Miami Arachnids | 356 |
| 6. | Scherzer, Max | (filler) | Fairview Township Strike | 350 |
| 7. | Verlander, Justin | (yankeebb) | Strange Things | 350 |
| 8. | Cole, Gerrit | (Trashfactory) | Haven Village Spartans | 350 |
| 9. | Scherzer, Max | (littlereb) | Texas Broncos | 350 |
| 10. | Verlander, Justin | (malael) | New York Highlanders | 348 |
| 11. | Corbin, Patrick | (sillymonkey) | Emerald Bay Energizers | 347 |
| 12. | deGrom, Jacob | (ColinBoucher) | Sycamore Street MollyWhoppers | 347 |
| 13. | Scherzer, Max | (djej2640) | Wind City Challengers | 347 |
| 14. | Scherzer, Max | (gibblets1973) | Holyrood Purple H's | 347 |
| 15. | deGrom, Jacob | (tmcarthur72) | Las Vegas Stars | 347 |
| 16. | Scherzer, Max | (dynasty) | New York Hammers | 347 |
| 17. | Verlander, Justin | (mmeler) | New York Mets | 346 |
| 18. | Scherzer, Max | (DaveH) | Ladson Cougars | 346 |
| 19. | Scherzer, Max | (Krugs) | Poetic Force | 346 |
| 20. | Sale, Chris | (Bigredmachine90) | Barboursville Bacon | 345 |
| 21. | Cole, Gerrit | Reno High Towers | 345 | |
| 22. | Sale, Chris | (befulton) | Saint Charles RiverCats | 345 |
| 23. | Scherzer, Max | (deyanksfan) | Spring Sharks | 343 |
| 24. | Verlander, Justin | (filler) | Los Angeles Rhinos | 343 |
| 25. | Scherzer, Max | (mattholland1975) | Michigan Mustangs | 343 |
| 26. | Sale, Chris | (YS) | Uranus Rebel Yells | 342 |
| 27. | Kershaw, Clayton | (Trulaia) | Scranton Ducks | 342 |
| 28. | Scherzer, Max | (shane211) | South Dakota Looters | 341 |
| 29. | deGrom, Jacob | (adestefano1127) | What If I Never Get Over You | 341 |
| 30. | Kluber, Corey | (Mitch44) | Scarborough Red Storm | 340 |
| 31. | Kluber, Corey | Tribeca Trotters | 340 | |
| 32. | Cole, Gerrit | (htennis) | The Mandalorian Baby Yodas | 340 |
| 33. | Bieber, Shane | (Trulaia) | Baltimore Killer Bees | 339 |
| 34. | Scherzer, Max | (Entress724) | Ny Mets | 339 |
| 35. | Scherzer, Max | (jim2miller) | Alaska Sasquatch | 339 |
| 36. | Scherzer, Max | (bryanreynolds) | Pittsburgh Rocket jet | 339 |
| 37. | Scherzer, Max | Kennebec Valley Jammers | 338 | |
| 38. | Cole, Gerrit | (Mjr) | South Africa Springboks | 338 |
| 39. | Cole, Gerrit | (htennis) | The 100 Bellarkes | 338 |
| 40. | Scherzer, Max | Dartmouth BaseDogs | 337 | |
| 41. | Cole, Gerrit | (BigRedMachine90) | Huntington Panty Droppers | 337 |
| 42. | Scherzer, Max | Dartmouth BaseDogs | 337 | |
| 43. | Scherzer, Max | Utica Post 229 | 336 | |
| 44. | Verlander, Justin | (Bluesig) | Oroquieta Oliphaunts | 336 |
| 45. | Scherzer, Max | (paranoid) | Las Vegas Chaos II | 336 |
| 46. | Verlander, Justin | (Gurg33) | Everyday Workers | 336 |
| 47. | Kluber, Corey | (ColinBoucher) | Derelict Winos | 336 |
| 48. | Scherzer, Max | (madmike76) | Pointless Tigers | 336 |
| 49. | Cole, Gerrit | (mattyi4) | H-Town Fords | 335 |
| 50. | Scherzer, Max | (Don55) | BB Bald Eagles | 335 |