Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
Single-Season Leaders (Homers)
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. | Olson, Matt | (dgeorgi) | GAS HOUSE DIZZY n DAFFY | 103 |
| 2. | Olson, Matt | (dgeorgi) | CRAZY RABID BATMEN | 99 |
| 3. | Olson, Matt | Philadelphia Wyverns | 94 | |
| 4. | Olson, Matt | (Bluesig) | Warihatag Wolves | 92 |
| 5. | Olson, Matt | (Bluesig) | Warihatag Wolves | 89 |
| 6. | Olson, Matt | (michelb3514) | Iowa Corn Pickers | 89 |
| 7. | Olson, Matt | (ThEiRoNhOrSe04) | Portland Bounty | 88 |
| 8. | Olson, Matt | (Bluesig) | Warihatag Wolves | 88 |
| 9. | Hoskins, Rhys | (Bluesig) | Warihatag Wolves | 86 |
| 10. | Olson, Matt | (Bluesig) | Warihatag Wolves | 86 |
| 11. | Olson, Matt | (michelb3514) | Iowa Corn Pickers | 85 |
| 12. | Bonds, Barry | (BBA29) | South Side Chicago Fire and Rescue | 85 |
| 13. | Acuna, Ronald | (joemcg) | OC Panthers | 85 |
| 14. | Olson, Matt | (Artinshki) | America First Patriots | 85 |
| 15. | Hoskins, Rhys | (Bluesig) | Warihatag Wolves | 84 |
| 16. | McGwire, Mark | (bngl) | Seattle Sockeye | 84 |
| 17. | McGwire, Mark | (filler) | Union City Hobos | 84 |
| 18. | Bonds, Barry | (richgibson) | San Diego WOBS | 83 |
| 19. | Olson, Matt | St Louis Bulls | 83 | |
| 20. | Olson, Matt | (filler8) | South Dakota Jaws | 83 |
| 21. | Olson, Matt | (hanson) | Heritage Pointers | 83 |
| 22. | Smith, Will | (donnpall) | Las Vegas Sun Sox | 83 |
| 23. | Olson, Matt | (jeter0296) | Freehold 17s | 82 |
| 24. | Olson, Matt | (Zigwiggity) | Twenty Five Eight | 82 |
| 25. | Gallo, Joey | (Bluesig) | Barañaque Black Ocelots | 82 |
| 26. | Bonds, Barry | (wheat23) | Long Island Bucks | 82 |
| 27. | Olson, Matt | (filler2) | BB INCOGNITO | 82 |
| 28. | McGwire, Mark | (ressien) | SF Demons | 82 |
| 29. | McGwire, Mark | (richgibson) | San Diego WOBS | 82 |
| 30. | Bonds, Barry | (dynasty) | Tisdale Jumping Frogs | 81 |
| 31. | Bonds, Barry | (timyoung) | PIttsburgh Crawfords | 81 |
| 32. | Bonds, Barry | (WorcWarr) | Worcester Warriors | 81 |
| 33. | Olson, Matt | Philadelphia Wyverns | 81 | |
| 34. | Bonds, Barry | (littlereb) | Apple Valley Apes | 81 |
| 35. | Voit, Luke | (filler) | Gainesville Gators | 81 |
| 36. | McGwire, Mark | (mckarcher) | Ballymoney Brawn | 80 |
| 37. | Voit, Luke | (ColinBoucher) | Derelict Winos | 80 |
| 38. | Bonds, Barry | (tgbsbl1967) | St Joe Invaders | 80 |
| 39. | Hoskins, Rhys | (oasis) | Moose Jaw Stuffed Savages | 80 |
| 40. | McGwire, Mark | (filler) | Central PA Archies | 80 |
| 41. | Voit, Luke | (Trulaia) | Miami Sharks | 80 |
| 42. | Gallo, Joey | (Trashfactory) | Haven Village Spartans | 80 |
| 43. | McGwire, Mark | (carp8dm) | Inglorious Basturds | 80 |
| 44. | O'Hearn, Ryan | BB Beavers | 80 | |
| 45. | McGwire, Mark | (disturbed) | Atlanta Braves | 80 |
| 46. | Perez, Salvador | (omulrion) | New Foundland Juiced Ducks | 79 |
| 47. | Smith, Will | (mattholland1975) | Cudell Cougars | 79 |
| 48. | Garver, Mitch | (ColinBoucher) | Mirandering Philanderers | 79 |
| 49. | Olson, Matt | (filler) | San Antonio Cowboys | 79 |
| 50. | McGwire, Mark | (Gaberino) | Chicago 9 Per's | 79 |