Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
Single-Season Leaders (Shutouts)
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. | Martinez, Pedro | (bush484) | Canton Lumber Company | 11 |
| 2. | Fujimoto, Hideo | (GlansGruber) | Honda Ruckus | 11 |
| 3. | Fujimoto, Hideo | (QcJets) | Toronto Blue Jays | 11 |
| 4. | Righetti, Dave | (jericho2u) | Dixie Boy Happy Toyz | 10 |
| 5. | Martinez, Pedro | (richgibson) | Castaway SPEEDWELLS | 10 |
| 6. | Righetti, Dave | (govols1975) | West Lala Mudcats | 10 |
| 7. | Johnson, Randy | (Majestic44) | New York Mets | 10 |
| 8. | Gooden, Dwight | (befulton) | NC Black Dogs | 9 |
| 9. | Martinez, Pedro | (Artinshki) | Base Ball Classics | 9 |
| 10. | Koufax, Sandy | (GoJaysGo) | San Francisco Dons | 9 |
| 11. | Sutton, Don | (chaaad) | UConn Huskies | 9 |
| 12. | Clemens, Roger | (aaabob) | Windsor White's Other I's | 9 |
| 13. | Starffin, Victor | (TheDean57) | Stray Kids | 9 |
| 14. | Walsh, Ed | (Artinshki) | Base Ball Classics | 9 |
| 15. | Starffin, Victor | (Bigjoe52) | Diaper Dandys | 9 |
| 16. | Maddux, Greg | (FJS) | NYC Pizza Ovens | 9 |
| 17. | Sutton, Don | (Caphowdy504) | Springfield Troy McClures | 9 |
| 18. | Joss, Addie | (WorcWarr) | Worcester Warriors | 9 |
| 19. | Scott, Mike | (gibblets1973) | Eastport Entity | 9 |
| 20. | Downing, Al | (GoYanks1981) | Knuckle Draggers | 9 |
| 21. | Blue, Vida | (Lstiver) | Marion Center Burglars | 9 |
| 22. | Tiant, Luis | (Farmerfrank88) | Braddock Lightning Dream | 9 |
| 23. | Gibson, Bob | (LDJS1947) | LOUISIANA CAJINS | 9 |
| 24. | Koufax, Sandy | Kaslo Whiskey Jacks | 9 | |
| 25. | Gibson, Bob | (plpl512) | Edmonton Cracker Cats | 9 |
| 26. | Fujimoto, Hideo | (DaveH) | Shochiku Robins | 9 |
| 27. | Richard, J.R. | (ThEiRoNhOrSe04) | The Tenance | 9 |
| 28. | Gooden, Dwight | (Dmurphy) | Saban Retirees | 9 |
| 29. | Walsh, Ed | (richgibson) | Harveys Pookas | 9 |
| 30. | Tiant, Luis | (Mortamar1966) | Kansas City Monarchs | 9 |
| 31. | Whitney, Jim | (filler) | Chicago Outlaws | 9 |
| 32. | Ryan, Nolan | (Tommyboy23) | Tampa Looters | 9 |
| 33. | Perry, Gaylord | (Theo_smith) | East Nashville Vinyl | 9 |
| 34. | Palmer, Jim | (Griff) | Tampa Bay Diamond Dogs | 9 |
| 35. | Krukow, Mike | (DaveH) | Ladson Cougars | 9 |
| 36. | Schilling, Curt | (finalbody) | Honolulu Sharks | 9 |
| 37. | Carlton, Steve | (Mortamar1966) | Kansas City Monarchs | 8 |
| 38. | Rogers, Steve | (kingstreet) | Singapore Slingers | 8 |
| 39. | Koufax, Sandy | (chaaad) | Amsterdam Rugmakers | 8 |
| 40. | Maddux, Greg | (babyave1) | Noble Knights | 8 |
| 41. | Joss, Addie | (filler) | Why Does My Pee Smell Like Ham | 8 |
| 42. | Gooden, Dwight | (TownBizAz) | Big City Slams | 8 |
| 43. | Gibson, Bob | (Tjm) | Prison Break | 8 |
| 44. | Righetti, Dave | (Artinshki) | Eighties Eephus | 8 |
| 45. | Rogers, Steve | (gibblets1973) | Ellston Eagles | 8 |
| 46. | Valenzuela, Fernando | (Roots) | Montreal Monarchs | 8 |
| 47. | Arrieta, Jake | (nycubsfan) | Goshen Gorillas | 8 |
| 48. | Blue, Vida | (Tbone34) | K. C. MoNARCHS | 8 |
| 49. | Faber, Red | (teamkev24) | Big Red | 8 |
| 50. | deGrom, Jacob | (Fernis46) | Star Wars Rebel Forces | 8 |
