Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
Single-Season Leaders (Hit%20Batters)
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 | (BenBucket123) | Central PA Black Mantas | 22 |
| 2. | Maddux, Greg | (danmcvay1) | PBC Pirates | 21 |
| 3. | Morton, Charlie | (Tommyboy23) | Daffy Ducks | 21 |
| 4. | Bieber, Shane | (Texashorns2023) | New York Mets | 21 |
| 5. | Nola, Aaron | (jim2miller) | Elkhart Blue Blazers | 20 |
| 6. | Leonard, Dutch | (DaveHT) | Brooklyn Bulldogs | 20 |
| 7. | Gallen, Zac | (Rvj123) | Mudville Wolfpack | 20 |
| 8. | Darvish, Yu | (BAR23) | Washington Co. Wasps | 20 |
| 9. | Buehler, Walker | (Alphabravo) | Pabst Blue Ribbons | 20 |
| 10. | Wheeler, Zack | (ArcticWolf30) | New York Moneybags | 20 |
| 11. | Wheeler, Zack | (Alphabravo) | Pabst Blue Ribbons | 20 |
| 12. | Ohtani, Shohei | (brenzini) | Oakmont Yankees | 20 |
| 13. | Ohtani, Shohei | (brenzini) | Oakmont Yankees | 20 |
| 14. | Joss, Addie | (dynasty) | Cleveland Spiders | 20 |
| 15. | Chesbro, Jack | (jbas524) | Raid In the Sink | 19 |
| 16. | Baldwin, Lady | (sheikyerboudi) | Mojave Desert RabidArmadillos | 19 |
| 17. | Santana, Johan | (Falcons21) | Chicago Nine | 19 |
| 18. | Santana, Johan | (kevin0gonzales) | Seaford Sandsharks | 19 |
| 19. | King, Silver | (sheikyerboudi) | Farmer Blow Anteaters | 19 |
| 20. | Gonsolin, Tony | (filler) | Ellenton Traitors | 19 |
| 21. | Pelty, Barney | El Paso Chihuahuas | 19 | |
| 22. | Pfiester, Jack | (Amorphis) | City Pound Canine | 19 |
| 23. | Nola, Aaron | (Silent_Knight19) | Michigan Barnstormers | 19 |
| 24. | Woodruff, Brandon | (Abcjz) | South Dakota WOMBATS | 19 |
| 25. | Wright, Kyle | (misterr) | BRENTWOOD MARVELS | 19 |
| 26. | Buehler, Walker | (GlansGruber) | Uncle Bus | 19 |
| 27. | Darvish, Yu | (Texashorns2023) | Gothic City Batsmen | 19 |
| 28. | Lugo, Seth | (Charles_graf) | Brooklyn Dodgers | 19 |
| 29. | Bradish, Kyle | (JDFrost) | Greenville All Stars | 18 |
| 30. | Ray, Robbie | (dynasty) | Detroit Dumpsters | 18 |
| 31. | Owen, Frank | Fred Flinstoners | 18 | |
| 32. | Taillon, Jameson | (filler8) | Cincinnati Brew | 18 |
| 33. | Mikolas, Miles | (dgeorgi) | STEPPIN WOLF MAGIC CARPET RIDE | 18 |
| 34. | Bauer, Trevor | Lorain Loons | 18 | |
| 35. | Howell, Harry | (DaveH) | Brooklyn Robins | 18 |
| 36. | Lauer, Eric | (Tommyboy23) | Daffy Ducks | 18 |
| 37. | Verlander, Justin | (Roberbg97) | Habana Lions | 18 |
| 38. | Nola, Aaron | (Schvitz) | Boston Blue Fins | 18 |
| 39. | Nola, Aaron | (andyyoung) | Wiley Coyotes | 18 |
| 40. | Wheeler, Zack | (jaredhamann) | Wuhan Dreamcatcher | 18 |
| 41. | Gallen, Zac | (filler) | 2023 Dogs | 18 |
| 42. | Verlander, Justin | (coachmcs) | Lake Havasu Rain-15 | 18 |
| 43. | Manaea, Sean | (acr0320) | Seattle Sea Serpents | 18 |
| 44. | Nichols, Kid | (filler8) | La Crosse Old Styles | 18 |
| 45. | Kluber, Corey | (richp) | Tuckerton Terrors | 18 |
| 46. | Wood, Kerry | (Trulaia) | Stockton Stars | 18 |
| 47. | McClanahan, Shane | (kevin0gonzales) | Oakland Elephants | 18 |
| 48. | Walsh, Ed | (Amorphis) | City Pound Canine | 18 |
| 49. | Cole, Gerrit | (Alphabravo) | Pabst Blue Ribbons | 18 |
| 50. | Martinez, Pedro | (filler) | Atlanta Grays | 18 |
