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. | Severino, Luis | (Zigwiggity) | Scobey Sharks | 16 |
| 2. | Sutton, Don | (Bears19) | Panama City Bulls | 15 |
| 3. | Scott, Mike | (montgomerybrews) | Montgomery Brewsters | 14 |
| 4. | Kershaw, Clayton | (Trulaia) | city players | 14 |
| 5. | Higuera, Teddy | (kingstreet) | Singapore Straits Tigers | 14 |
| 6. | McNally, Dave | (Trevor_Inglow) | Cobleskill Eagles | 14 |
| 7. | Martinez, Pedro | (Strokey) | Durham Bulls | 14 |
| 8. | Sutton, Don | (Montanajack) | Montana Silver Eagles | 13 |
| 9. | Johnson, Randy | (me) | Boston Bees | 13 |
| 10. | Fernandez, Sid | (michelb3514) | Iowa Corn Pickers | 13 |
| 11. | Carlton, Steve | (tw_gk) | Columbus Bulldogs | 13 |
| 12. | Kershaw, Clayton | (flaxseed) | Carolina Bombers | 13 |
| 13. | Kershaw, Clayton | (ben33) | Bay Area Big Brains | 12 |
| 14. | McNally, Dave | (jamin) | Chester Springs Menjai | 12 |
| 15. | Clemens, Roger | (matt11791) | Tokyo Gojira | 12 |
| 16. | Kluber, Corey | (ryanek11) | Donkey Hodey | 12 |
| 17. | Carlton, Steve | (tgbsbl1967) | Pueblo Pirates | 12 |
| 18. | Blue, Vida | (Dollarhotdog) | Foul Pole Dancers | 12 |
| 19. | Sale, Chris | (Raidergreg72) | Saint Charles RiverCats | 12 |
| 20. | Gooden, Dwight | (michelb3514) | Iowa Corn Pickers | 12 |
| 21. | Scherzer, Max | (Trulaia) | city players | 11 |
| 22. | Kershaw, Clayton | (jbenson) | Iowa Southpaws | 11 |
| 23. | Walsh, Ed | (Jaco1380) | Fort Bliss Duckhunters | 11 |
| 24. | Walsh, Ed | (baseball4ever) | Panama Canal Builders | 11 |
| 25. | Koufax, Sandy | (dunroche) | Carolina Racin' Wrens | 11 |
| 26. | Koufax, Sandy | (tbone34) | Texas Tomahawks | 11 |
| 27. | Sutton, Don | (Montanajack) | Montana Silver Eagles | 11 |
| 28. | Soto, Mario | (kingstreet) | Singapore Jumbos | 11 |
| 29. | Fernandez, Jose | (flaxseed) | Carolina Bombers | 11 |
| 30. | Johnson, Walter | (usmchc5) | Downeast Pirates | 11 |
| 31. | Tiant, Luis | (silvereaglemyst) | Keokuk Westerns | 10 |
| 32. | Gibson, Bob | (abcjz) | Mahwah Blue Jay Jacks | 10 |
| 33. | Sweeney, Charlie | (Tudda) | Gibsonia Gators | 10 |
| 34. | Ryan, Nolan | (RoyHobbs) | Daegu Mafia | 10 |
| 35. | Kershaw, Clayton | (bnl1077) | Arizona Bulls | 10 |
| 36. | Scherzer, Max | (jim2miller) | Northern Ohio Nighthawks | 10 |
| 37. | Clemens, Roger | (Mranastasia) | The Sexiest Man Alive | 10 |
| 38. | Tiant, Luis | (kingstreet) | Singapore Jumbos | 10 |
| 39. | Tiant, Luis | (TerryMrCub) | McHenry Men | 10 |
| 40. | Smoltz, John | (filler) | mbmb nnnn | 10 |
| 41. | Martinez, Pedro | (BadAzzB) | Hairy Crabs | 10 |
| 42. | Gibson, Bob | (jamin) | Chester Springs Menjai | 10 |
| 43. | Koufax, Sandy | (rays15) | Ferndale Fugitives | 10 |
| 44. | Kluber, Corey | (Bluesig) | Coñablianca Cobra Kais | 10 |
| 45. | Scherzer, Max | (LukeWancewicz21) | Oakland A's | 10 |
| 46. | Sutton, Don | (kingstreet) | Singapore Swingers | 10 |
| 47. | Koufax, Sandy | (zigwiggity) | El Paso Smoke | 10 |
| 48. | Kershaw, Clayton | (Trulaia) | Blythe Broncos | 10 |
| 49. | Kluber, Corey | (Coutinho11) | Lincoln Red Stripes | 10 |
| 50. | Ryan, Nolan | (dynasty) | Royalton Raisins | 10 |