Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
Single-Season Leaders (Average)
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. | Meyerle, Levi | (filler) | Cooperstown Hall of Famers | .399 |
| 2. | Kelly, King | (edgwords1) | Pesky Wolverines | .394 |
| 3. | Cobb, Ty | (filler2) | Louisville Colonels | .392 |
| 4. | Hamilton, Billy | (DaveH) | Ladson Dodgers | .391 |
| 5. | Sisler, George | (filler) | Sweet Caporal Cigarettes | .391 |
| 6. | Hamilton, Billy | (noleary) | Louisville Colonels | .391 |
| 7. | Duffy, Hugh | (Shpennymons) | Oyster Bay Eagles | .390 |
| 8. | Tucker, Tommy | (Fungoking) | Tulsa Drillers | .389 |
| 9. | Meyerle, Levi | (Lostit) | Chicago's Lost Orphans | .387 |
| 10. | Cobb, Ty | (boetto) | The Dukes Of Tralee | .387 |
| 11. | Hornsby, Rogers | (gibblets1973) | Long Beach NL Lawmen | .387 |
| 12. | Brett, George | (Caphowdy504) | Baton Rouge Bayou Bengals | .385 |
| 13. | Meyerle, Levi | (filler) | Peoria B61's | .384 |
| 14. | O'Neill, Tip | (roguerouge) | Kansas Winged Monkeys | .384 |
| 15. | Hamilton, Billy | (Fungoking) | New York Highlanders | .383 |
| 16. | McGraw, John | (billyconn) | Boston Beaneaters | .383 |
| 17. | Meyerle, Levi | (Bears19) | Cesenatico Legends | .383 |
| 18. | Meyerle, Levi | (GoYanks1981) | Magilla’s Gorillas | .382 |
| 19. | Cobb, Ty | (REVEJB) | Angry Pickles | .382 |
| 20. | Jennings, Hughie | Okeechobee Swamp Donkey | .381 | |
| 21. | Meyerle, Levi | (filler) | 12th Man Deadballers | .381 |
| 22. | Hamilton, Billy | (filler8) | Albuquerque Isotopes | .380 |
| 23. | Tucker, Tommy | (filler2) | Tampa Dragons | .380 |
| 24. | Jackson, Joe | (jpcortez) | Dead End Streets | .380 |
| 25. | Clarke, Fred | (boetto) | Plano Orioles | .380 |
| 26. | Stengel, Casey | (czierk) | Ridge Barking Spiders | .379 |
| 27. | Meyerle, Levi | (Lostit) | Chicago's Lost Orphans | .379 |
| 28. | Duffy, Hugh | (griffenberg) | Pirate Fortress Archers of Love | .379 |
| 29. | Speaker, Tris | (Shpennymons) | Patankin Peelers | .378 |
| 30. | Meyerle, Levi | (tbandit1) | Severn River Bandits | .378 |
| 31. | Duffy, Hugh | (filler2) | Kansas City Monarchs | .378 |
| 32. | Stengel, Casey | (griffenberg) | Pirate Fortress Archers of Love | .378 |
| 33. | Keeler, Willie | (filler) | 12th Man Deadballers | .378 |
| 34. | Tucker, Tommy | (Shpennymons) | Patankin Peelers | .377 |
| 35. | Simmons, Al | Boston Bees | .377 | |
| 36. | O'Neill, Tip | (Fungoking) | Gainesville Green Socks | .377 |
| 37. | Tucker, Tommy | (Shpennymons) | Coco B-Wares | .377 |
| 38. | Duffy, Hugh | (Myunclepunk) | Chicago Jets | .377 |
| 39. | Soto, Juan | CAPE GIRARDEAU CAPAHAS | .377 | |
| 40. | Jennings, Hughie | (Fungoking) | Uptown Pinstripes | .377 |
| 41. | Sisler, George | (dgeorgi) | CORKED BATS | .377 |
| 42. | Turner, Tuck | (Shpennymons) | Badoomcha Bandits | .376 |
| 43. | Burkett, Jesse | (andyyoung) | Ranch Cucamonga Quakes | .376 |
| 44. | Ruth, Babe | (teamkev24) | San Francisco Seals | .376 |
| 45. | Meyerle, Levi | (griffenberg) | Pirate Fortress Archers of Love | .376 |
| 46. | Meyerle, Levi | (filler) | Peoria B61's | .376 |
| 47. | McGraw, John | (roguerouge) | Kansas Winged Monkeys | .376 |
| 48. | Meyerle, Levi | (Fungoking) | Canton Bulldogs | .376 |
| 49. | Hamilton, Billy | (Fungoking) | Brooklyn Tip Tops | .375 |
| 50. | Hamilton, Billy | (filler) | Sanatorium Rubes | .375 |