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 | Brentwood Devil Dogs | 347.2 | |
| 2. | Morris, Ed | Brentwood Devil Dogs | 318.2 | |
| 3. | Baldwin, Lady | Brentwood Devil Dogs | 313.2 | |
| 4. | Seward, Ed | Brentwood Devil Dogs | 310.1 | |
| 5. | Sweeney, Charlie | (gibblets1973) | Gander Flyers | 305.2 |
| 6. | Koufax, Sandy | (gibblets1973) | St. John's Saints | 305.2 |
| 7. | Blue, Vida | (kingstreet) | Singapore Slingers | 303.2 |
| 8. | Walsh, Ed | (mrfantasy) | Wisconsin Shepherds | 303.2 |
| 9. | Walsh, Ed | (Fungoking) | PHILADELPHIA STATESMEN | 303.2 |
| 10. | Keefe, Tim | Brentwood Devil Dogs | 303.1 | |
| 11. | Sutton, Don | (kingstreet) | Singapore Express | 303.1 |
| 12. | Johnson, Walter | (gibblets1973) | Petite Forte Panthers | 302.0 |
| 13. | Sutton, Don | (filler) | Rebel Alliance Lightsabers | 301.2 |
| 14. | Gooden, Dwight | (Micwal67) | San Diego Sting | 301.0 |
| 15. | Koufax, Sandy | Calgary Cavaliers | 300.2 | |
| 16. | Perry, Gaylord | (kingstreet) | Singapore Slingers | 299.2 |
| 17. | Pfiester, Jack | (mikbbal) | Parfittown Miners | 299.2 |
| 18. | Gibson, Bob | (catefigcas) | Brookings Harbor DirtBags | 299.2 |
| 19. | McNally, Dave | (vanderj6993) | Melbourne Raiders | 299.2 |
| 20. | Walsh, Ed | (mikbbal) | Parfittown Miners | 299.1 |
| 21. | Johnson, Walter | Brentwood Devil Dogs | 299.1 | |
| 22. | Walsh, Ed | (TC99) | Jackson 🐕🦺 Dead Dogs | 299.0 |
| 23. | Ford, Russ | (tgbbirch) | michigan patriots | 299.0 |
| 24. | Walsh, Ed | Lake Mills Bulldogs | 299.0 | |
| 25. | Walsh, Ed | Singapore Slingers | 298.2 | |
| 26. | Sweeney, Charlie | (Shpennymons) | Puzley Croswerdes | 298.2 |
| 27. | Walsh, Ed | (Brenzini) | Oakmont Coffee Makers | 298.2 |
| 28. | Walsh, Ed | (bmilliron) | Buckley Vikings | 298.1 |
| 29. | Ford, Russ | (michelb3514) | Iowa Corn Pickers | 298.1 |
| 30. | Gibson, Bob | (gibblets1973) | St. John's Saints | 298.0 |
| 31. | Marichal, Juan | (Wolfpack80) | Lex Vegas Wildcats | 298.0 |
| 32. | Walsh, Ed | (kingstreet) | Singapore Slingers | 298.0 |
| 33. | Walsh, Ed | (dshearer) | Salt Lake Crabs | 298.0 |
| 34. | Perry, Gaylord | (kingstreet) | Singapore Slingers | 298.0 |
| 35. | Johnson, Walter | (czierk) | Hoboken Hobos | 297.2 |
| 36. | Marichal, Juan | (ClassicOs) | Baltimore Orioles | 297.2 |
| 37. | Walsh, Ed | (vanderj6993) | Electric City Riot | 297.2 |
| 38. | Boyle, Henry | Full Western Outfit | 297.2 | |
| 39. | Walsh, Ed | (Artinshki) | Base Ball Homers | 297.2 |
| 40. | Walsh, Ed | (MikeDrop0221) | Maryland Crab Cakes | 297.1 |
| 41. | Sweeney, Charlie | (mikbbal) | Parfittown Miners | 297.1 |
| 42. | Clemens, Roger | (vanderj6993) | Hawaii Eruptions | 297.0 |
| 43. | Mathewson, Christy | (Shpennymons) | Patankin Peelers | 297.0 |
| 44. | Koufax, Sandy | (dunroche) | SoCal SurfDawgs 🥎 | 297.0 |
| 45. | Marichal, Juan | (Iamcota) | Londonderry LIzard Kings | 296.2 |
| 46. | Martinez, Pedro | Boston Sox | 296.2 | |
| 47. | Wilson, Don | (Sidneypointers) | Hilltop Wind | 296.2 |
| 48. | Tudor, John | (befulton) | Yukon Huskies | 296.2 |
| 49. | Walsh, Ed | (fps1956) | Albuquerque Eskimos | 296.1 |
| 50. | Kershaw, Clayton | (KeytonRinne15) | Yosemite Wolves | 296.1 |