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. | deGrom, Jacob | (Trulaia) | York Spartans2 | 366 |
| 2. | Cole, Gerrit | (athlete4) | Uniontown Brown | 364 |
| 3. | Cole, Gerrit | (Trashfactory) | Haven Village Spartans | 350 |
| 4. | Bauer, Trevor | (gibblets1973) | Holyrood Purple H's | 350 |
| 5. | Verlander, Justin | Strange Things | 350 | |
| 6. | Bauer, Trevor | (gibblets1973) | Holyrood Purple H's | 348 |
| 7. | deGrom, Jacob | (Trulaia) | Kentucky HeadHunters | 347 |
| 8. | Scherzer, Max | (Guelah20) | Winchester Saunaseekers | 347 |
| 9. | Bieber, Shane | (filler8) | New York Mets | 347 |
| 10. | Bieber, Shane | (metschamp) | Still D.R.E | 346 |
| 11. | Cole, Gerrit | (snowflake) | DD Devils | 345 |
| 12. | Verlander, Justin | (griffeyga) | Tucson Toros | 343 |
| 13. | Bauer, Trevor | (JDfrost) | Greenville All Stars | 343 |
| 14. | Scherzer, Max | (Brooker) | Chicago Crushers | 343 |
| 15. | deGrom, Jacob | (befulton) | Flagstaff Gorilla Kings | 341 |
| 16. | deGrom, Jacob | (tjm) | East Coast Warriors | 341 |
| 17. | Scherzer, Max | (deyanksfan) | Georgetown Gorillas | 339 |
| 18. | Cole, Gerrit | (N16525) | Chapecó Jacaré | 338 |
| 19. | deGrom, Jacob | (ColinBoucher) | DoppelHead BobbleGängers | 338 |
| 20. | Cole, Gerrit | (mattyi4) | H-Town Fords | 335 |
| 21. | Cole, Gerrit | (GRW3) | Simsbury Cats | 335 |
| 22. | Cole, Gerrit | (JoeyT2870) | Brooklin Cobras | 335 |
| 23. | Scherzer, Max | (Silas) | St. Remy Sluggers | 335 |
| 24. | Strasburg, Stephen | Philadelphia Wyverns | 335 | |
| 25. | Scherzer, Max | (iceman18) | New York Mets | 334 |
| 26. | Martinez, Pedro | (nickachap) | New York Mets | 334 |
| 27. | Bauer, Trevor | (mac66) | London Majors | 333 |
| 28. | Verlander, Justin | (GRW3) | Simsbury Trojans | 333 |
| 29. | Scherzer, Max | (joemcg) | OC Gators | 333 |
| 30. | Sale, Chris | (michelb3514) | Iowa Corn Pickers | 333 |
| 31. | Verlander, Justin | (Brenzini) | Oakmont 5 Oclock Shadow | 333 |
| 32. | Strasburg, Stephen | Philadelphia Wyverns | 333 | |
| 33. | Bieber, Shane | (RedsHawk) | RED Rippers | 332 |
| 34. | Cole, Gerrit | (filler) | Albuquerque Dukes | 332 |
| 35. | Arrieta, Jake | (ThEiRoNhOrSe04) | Portland Bounty | 331 |
| 36. | Bauer, Trevor | (dpm1974) | Baldwin Owls | 331 |
| 37. | Verlander, Justin | (ColinBoucher) | Rancho Cucamonga Quakes | 331 |
| 38. | Verlander, Justin | (IsaacB22) | UNLV Rebels | 331 |
| 39. | Scherzer, Max | (filler8) | Foundation Maz Hatters | 331 |
| 40. | Verlander, Justin | (dgeorgi) | MOUNT CRUMPIT GRINCHES | 331 |
| 41. | Martinez, Pedro | (filler) | North Dakota Oil Sharks | 330 |
| 42. | Verlander, Justin | (ColinBoucher) | Derelict Winos | 330 |
| 43. | Sale, Chris | (iceman18) | New York Mets | 330 |
| 44. | Flaherty, Jack | (filler) | Philadelphia Phillies 80 | 330 |
| 45. | Bauer, Trevor | (ColinBoucher) | Central Phillys HillBillies | 330 |
| 46. | Cole, Gerrit | (filler) | Fightin Amish | 330 |
| 47. | Cole, Gerrit | (iamcota) | Cotaville Swamp Minnows | 330 |
| 48. | Verlander, Justin | (cunnythumber) | Yellowstone Jelly Bears | 330 |
| 49. | Cole, Gerrit | Central PA Talismans | 329 | |
| 50. | Verlander, Justin | (JDfrost) | Greenville All Stars | 329 |