Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
Single-Season Leaders (Innings)
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. | Ford, Russ | (Wolfrum) | Gas City Green Sox | 347.2 |
| 2. | Walsh, Ed | (Wolfrum) | Gas City Green Sox | 336.2 |
| 3. | Baldwin, Lady | (Wolfrum) | Gas City Green Sox | 335.1 |
| 4. | Morris, Ed | (Wolfrum) | Gas City Green Sox | 318.2 |
| 5. | Baldwin, Lady | (Wolfrum) | Gas City Green Sox | 313.2 |
| 6. | Seward, Ed | (Wolfrum) | Gas City Green Sox | 310.1 |
| 7. | Koufax, Sandy | (gibblets1973) | St. John's Saints | 305.2 |
| 8. | Gibson, Bob | (dynasty) | Pacific Surf | 305.0 |
| 9. | Corcoran, Larry | (Iceman367) | Rupert Mondays | 304.1 |
| 10. | Johnson, Walter | (czierk) | Hoboken Hobos | 304.0 |
| 11. | Marichal, Juan | (chucklesmcgee) | Las Matas de Madrid | 303.1 |
| 12. | Keefe, Tim | (Wolfrum) | Gas City Green Sox | 303.1 |
| 13. | Tanana, Frank | (RoyHobbs) | Gibsonia Gators | 303.1 |
| 14. | Sutton, Don | (kingstreet) | Singapore Express | 303.1 |
| 15. | Marichal, Juan | (Doceagle) | Nashville Sound | 302.2 |
| 16. | Buffinton, Charlie | (Robhawkva) | Roanoke Renegades | 302.1 |
| 17. | Vance, Dazzy | (nytkrew) | Parkersburg Bulls | 302.0 |
| 18. | Sutton, Don | (tylang) | Bronx Bombers | 301.2 |
| 19. | Hecker, Guy | (littlereb) | Troy Trojans | 301.2 |
| 20. | Drysdale, Don | (ClassicOs) | Baltimore Orioles | 301.1 |
| 21. | Drysdale, Don | (ClassicOs) | Baltimore Orioles | 300.2 |
| 22. | King, Silver | (Iceman367) | Rupert Mondays | 300.1 |
| 23. | Johnson, Walter | (PalinJames) | Erie Fighters | 300.1 |
| 24. | Scott, Mike | OKC Eagles | 300.1 | |
| 25. | Radbourn, Charley | (Wolfrum) | Gas City Green Sox | 299.2 |
| 26. | Perry, Gaylord | (kingstreet) | Singapore Slingers | 299.2 |
| 27. | Clemens, Roger | (Bj99) | Deadwood Hoople Heads | 299.1 |
| 28. | Johnson, Walter | (Wolfrum) | Gas City Green Sox | 299.1 |
| 29. | Overall, Orval | (Wolfrum) | Gas City Green Sox | 299.0 |
| 30. | McLain, Denny | (homeruno) | Brooklyn Dodgers | 299.0 |
| 31. | Sweeney, Charlie | (Shpennymons) | Puzley Croswerdes | 298.2 |
| 32. | Soto, Mario | Bmore Birds | 298.2 | |
| 33. | Ford, Russ | (michelb3514) | Iowa Corn Pickers | 298.1 |
| 34. | Blue, Vida | (Trulaia) | Brimfield Buccos | 298.1 |
| 35. | Walsh, Ed | (samwhitworth) | San Francisco Walkers | 298.1 |
| 36. | Arrieta, Jake | (Jannex96) | Iowa Corn Pickers | 298.1 |
| 37. | Walsh, Ed | (kingstreet) | Singapore Slingers | 298.0 |
| 38. | Perry, Gaylord | (kingstreet) | Singapore Slingers | 298.0 |
| 39. | Marichal, Juan | (mswanagin) | Lex Vegas Wildcats | 298.0 |
| 40. | Radbourn, Charley | (Zeedood) | Portland Prostitutes | 298.0 |
| 41. | Ford, Russ | (dynasty) | 12th Man Over Achievers | 298.0 |
| 42. | McLain, Denny | (littlereb) | Trenton Baseballers | 297.2 |
| 43. | Seward, Ed | (Frankrobinson88) | Baltimore Orioles | 297.2 |
| 44. | Johnson, Walter | (czierk) | Hoboken Hobos | 297.2 |
| 45. | Marichal, Juan | (hectorcolon) | HÉCTOR COLON-MARTINEZ | 297.2 |
| 46. | Boyle, Henry | (dunroche) | Visalia Cubs | 297.2 |
| 47. | Radbourn, Charley | (Wolfrum) | Gas City Green Sox | 297.1 |
| 48. | McNally, Dave | (timyoung) | Point Place Fight'n Whities | 297.1 |
| 49. | Drysdale, Don | (rhunner) | Catalina Commodores | 297.1 |
| 50. | Koufax, Sandy | (zigwiggity) | El Paso Smoke | 297.0 |