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. | Higuera, Teddy | (kingstreet) | Singapore Straits Tigers | 14 |
| 2. | Martinez, Pedro | (stonemob) | Starkville Lumberjacks | 14 |
| 3. | McNally, Dave | (RelvinMelvin) | Team Trump 2020 | 12 |
| 4. | Kluber, Corey | (ryanek11) | Donkey Hodey | 12 |
| 5. | Blue, Vida | (kingstreet) | Singapore Slingers | 12 |
| 6. | Martinez, Pedro | (kingstreet) | Singapore Slingers | 11 |
| 7. | Johnson, Walter | (ConfuseAndDaze) | McDowell Doffers | 11 |
| 8. | Koufax, Sandy | (dunroche) | Carolina Racin' Wrens | 11 |
| 9. | Johnson, Randy | (BigRedMachine90) | Holden Toodix | 11 |
| 10. | Kershaw, Clayton | (qunellk) | Northwest Clubber Cats | 11 |
| 11. | Kluber, Corey | (dzach) | Linndale Bills | 10 |
| 12. | Kluber, Corey | (Fortycal902) | Death Valley Sun Burners | 10 |
| 13. | Martinez, Pedro | (kingstreet) | Singapore Slingers | 10 |
| 14. | Scherzer, Max | (jim2miller) | Alaska Sasquatch | 10 |
| 15. | Tanana, Frank | Ottawa Slamming Wolves | 10 | |
| 16. | Richard, J.R. | (gibblets1973) | Los Gibbletos 70eventy | 10 |
| 17. | Johnson, Walter | (gt049) | Chicago Blackhawks | 10 |
| 18. | Johnson, Randy | (JStrauss51) | Oskaloosa Statesmen | 10 |
| 19. | Sutton, Don | (kingstreet) | Singapore Straits Pirates | 10 |
| 20. | Martinez, Pedro | (YS) | Youvegot Crabs | 10 |
| 21. | Scherzer, Max | (SergeantJoe) | Windsor Ace Kickers | 10 |
| 22. | Tiant, Luis | (kingstreet) | Singapore Jumbos | 10 |
| 23. | Kluber, Corey | (doceagle) | Batavia Muck Dogs | 10 |
| 24. | Nomo, Hideo | (Bigredmachine90) | Big Red Machine Redlegs 2 | 10 |
| 25. | Kluber, Corey | (ladams9999) | Van Nuys VanNuyzians | 10 |
| 26. | Koufax, Sandy | (bwoodcoc) | SCITS Blue Bombers | 9 |
| 27. | Gibson, Bob | (Iamcota) | Manchester Mangos | 9 |
| 28. | Peavy, Jake | (mattholland1975) | Pelkie Pumas | 9 |
| 29. | Johnson, Walter | (kingstreet) | Singapore Slingers | 9 |
| 30. | Walsh, Ed | (Ajhawk) | Madison Devils | 9 |
| 31. | Walsh, Ed | (Fungoking) | Litchfield Lumber Co. | 9 |
| 32. | Greinke, Zack | (kingstreet) | Singapore Slingers | 9 |
| 33. | Ford, Russ | (frankrobinson88) | Baltimore Bees | 9 |
| 34. | Kluber, Corey | (drh4740) | Portland Frogs | 9 |
| 35. | DeLeon, Jose | Boston Jumbos | 9 | |
| 36. | Perez, Pascual | (skreechseeno) | SNK Ninja Blacksox | 9 |
| 37. | Rogers, Steve | Ottawa Slamming Wolves | 9 | |
| 38. | Martinez, Pedro | (Bluesig) | Mataasnakahoy Avatars | 9 |
| 39. | Seaver, Tom | (kingstreet) | Singapore Slingers | 9 |
| 40. | Sutton, Don | (ironman) | Boston Sidewinders | 9 |
| 41. | Marichal, Juan | (TramFan) | Fotown Redmen | 9 |
| 42. | Perry, Gaylord | (montanajack) | Bay City Blue Jays | 9 |
| 43. | McCatty, Steve | (j-underground) | Radio Free Europe | 9 |
| 44. | Blue, Vida | (pcsking) | Castro Valley Cubs | 9 |
| 45. | Martinez, Pedro | (devil12218) | DeGrom Nom Nom | 9 |
| 46. | Kluber, Corey | (Mowolfon) | Bensonhurst Cyclones | 9 |
| 47. | Walsh, Ed | (Snowman33) | Hilton Head Waves | 9 |
| 48. | Kluber, Corey | (Bluesig) | Oroquieta Oliphaunts | 9 |
| 49. | Carlton, Steve | (Trulaia) | Washington Deplorables | 9 |
| 50. | Cooper, Mort | (dshearer) | Kingston Beavers | 9 |