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. | Fujimoto, Hideo | (dunroche) | Fujiyoshida Shining Wizards | 307.2 |
| 2. | Fujimoto, Hideo | (Ichiro51) | Toronto Blue Jays | 306.2 |
| 3. | Fujimoto, Hideo | (dgeorgi) | PINEAPPLE EXPRESS | 303.0 |
| 4. | Gibson, Bob | (coolie) | Peninsula Panthers | 302.2 |
| 5. | Rogers, Steve | (gibblets1973) | El Paso Diablos | 302.0 |
| 6. | Martinez, Pedro | (Gaberino) | Rhinoceros City WHIPpersnappers | 300.0 |
| 7. | Rogers, Steve | (gibblets1973) | East End Eagle | 300.0 |
| 8. | Sutton, Don | (gibblets1973) | Badger Bulldogs | 300.0 |
| 9. | Walsh, Ed | (hootjohnson) | Louisville Colonel’s Klink | 299.2 |
| 10. | Starffin, Victor | (sheikyerboudi) | 5.6.7.8'S Bomb The Twist | 299.2 |
| 11. | Fujimoto, Hideo | (GlansGruber) | Kyoto Kannibals | 299.2 |
| 12. | Marichal, Juan | (AlexMerrill21) | My Own Worst Eskimo | 298.2 |
| 13. | Fujimoto, Hideo | (Alfc10) | Not Those Giants | 298.0 |
| 14. | McLain, Denny | (babyave1) | Standish Slow Guys | 298.0 |
| 15. | Martinez, Pedro | (bdavids28) | Shake Hands With Danger | 298.0 |
| 16. | McNally, Dave | Fila Eskimos | 297.1 | |
| 17. | Vance, Dazzy | (gibblets1973) | Boomtown Broncos | 297.1 |
| 18. | Starffin, Victor | (gibblets1973) | Bally Haly Bay Stars | 297.1 |
| 19. | Starffin, Victor | (TheDean57) | Stray Kids | 297.0 |
| 20. | Hecker, Guy | (gibblets1973) | Gander Flyers | 297.0 |
| 21. | Tanana, Frank | (gibblets1973) | East End Eagle | 296.2 |
| 22. | Fujimoto, Hideo | (DaveH) | Shochiku Robins | 296.2 |
| 23. | McNally, Dave | Fila Eskimos | 296.1 | |
| 24. | Martinez, Pedro | (babyave1) | Boston BigHats | 296.1 |
| 25. | Johnson, Walter | (rawlscl78) | Hanson Brothers | 296.1 |
| 26. | Marichal, Juan | (joe91255) | Boise Hawks | 296.0 |
| 27. | Carlton, Steve | (gibblets1973) | Badger Bulldogs | 296.0 |
| 28. | Fujimoto, Hideo | (gibblets1973) | Bally Haly Bay Stars | 296.0 |
| 29. | Gooden, Dwight | (gibblets1973) | Portland Creek Pirates | 295.1 |
| 30. | Guidry, Ron | (gibblets1973) | Oklahoma Post Oaks | 295.1 |
| 31. | Blue, Vida | (gibblets1973) | Ellston Eagles | 295.1 |
| 32. | Tiant, Luis | (joe91255) | Boise Hawks | 295.0 |
| 33. | Alexander, Pete | (Shpennymons) | Puzley Croswerdes | 295.0 |
| 34. | Tiant, Luis | (Burrellfan1) | Jersey Shore BlueClaws | 294.2 |
| 35. | Tiant, Luis | (Burrellfan1) | Jersey Shore BlueClaws | 294.2 |
| 36. | Gibson, Bob | (coolie) | Peninsula Panthers | 294.2 |
| 37. | Gibson, Bob | (dunroche) | Gotham Giants | 294.2 |
| 38. | Koufax, Sandy | Fila Eskimos | 294.1 | |
| 39. | Tiant, Luis | (gibblets1973) | St. John's Saints | 294.0 |
| 40. | Seaver, Tom | (gibblets1973) | Swift Current NL Swords | 293.2 |
| 41. | Gibson, Bob | (BigRem68) | Brooklyn Brawlers | 293.2 |
| 42. | Sutton, Don | (finalbody) | South Dakota Sabotage | 293.2 |
| 43. | Gooden, Dwight | (Burrellfan1) | Tulsa Drillers | 293.1 |
| 44. | Gibson, Bob | (Ask12be1) | San Fernando Bandits | 293.1 |
| 45. | Starffin, Victor | (sheikyerboudi) | 5.6.7.8'S Bomb The Twist | 293.1 |
| 46. | Seaver, Tom | (gibblets1973) | East End Eagle | 293.0 |
| 47. | Vance, Dazzy | (dynasty8) | Londonderry Aires | 293.0 |
| 48. | Vance, Dazzy | (gibblets1973) | Deep Bay Ducks | 293.0 |
| 49. | Gibson, Bob | (dunroche) | Tampa Bay Buccaneers | 293.0 |
| 50. | Tiant, Luis | (Burrellfan1) | Jersey Shore BlueClaws | 293.0 |
