Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
Single-Season Leaders (ERA)
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. | Adams, Mike | (RichieBlondet) | West Side Whizzers | 0.27 |
2. | Jansen, Kenley | (morangslick) | Chicago Reapers | 0.28 |
3. | Benitez, Armando | (Noleary) | Baltimore Monumentals | 0.52 |
4. | Schiraldi, Calvin | (filler) | Boston Bees | 0.57 |
5. | Jackson, Mike | (nmiller4) | Cincinnati Reds | 0.57 |
6. | Nathan, Joe | (Mortamar1966) | Morleyville Mud Skippers | 0.58 |
7. | Eichhorn, Mark | (chaaad) | Newark Eagles | 0.59 |
8. | Rivera, Mariano | (JPThaRipper) | LITTLE ROCK EXPRESS | 0.60 |
9. | Uehara, Koji | (ranger) | DEER PARK DEER | 0.63 |
10. | Adams, Mike | (nycubsfan) | Jackson Heights Knights | 0.63 |
11. | McGraw, Tug | (Seavericious) | Cambridge Mets | 0.64 |
12. | Jansen, Kenley | (shelley71) | Bartonsville Butt Munchers | 0.65 |
13. | Chapman, Aroldis | (rreebe916) | Boston Bees | 0.65 |
14. | Papelbon, Jonathan | (ThEiRoNhOrSe04) | Liberty Banditos 57 | 0.68 |
15. | Abernathy, Ted | (Phillyfan) | Philly Pirates | 0.68 |
16. | Street, Huston | (rreebe916) | Pensacola Polecats | 0.68 |
17. | Street, Huston | (nycubsfan) | Goshen Gorillas | 0.69 |
18. | Davis, Wade | (dcwabdi) | Candon Cavemen | 0.69 |
19. | Kelley, Shawn | (Evilpuppy56) | Beastie Boys | 0.70 |
20. | Adams, Mike | (dynasty) | Memphis Dragons | 0.71 |
21. | Alvarado, Jose | (filler) | Boston Bees | 0.71 |
22. | Chapman, Aroldis | (richgibson) | US CANNONFODDER | 0.72 |
23. | Feliz, Neftali | (JoeyT2870) | Flying Spaghetti MONSTERS | 0.73 |
24. | Eckersley, Dennis | (richgibson) | Fort Wayne Food for Powder | 0.72 |
25. | Howe, Steve | (Hendu42) | H Town H's | 0.72 |
26. | Wilhelm, Hoyt | (walle-1) | Raritan Retrievers | 0.73 |
27. | Eckersley, Dennis | (Trulaia) | Vermont Lake Monsters | 0.73 |
28. | Uehara, Koji | WASHINGTON SENATORS | 0.74 | |
29. | Belinda, Stan | (Trulaia) | staten island ironworkers | 0.74 |
30. | Broxton, Jonathan | (ressien) | LA Top Guns | 0.75 |
31. | Hall, Dick | (dynasty) | Loudoun Lassos | 0.75 |
32. | Benitez, Armando | (bamoyer72) | Stone Temple Foo Peppers | 0.75 |
33. | Uehara, Koji | (rreebe916) | Strinestown DriveIners | 0.75 |
34. | Iglesias, Raisel | (coachmcs) | Death Valley Devils | 0.76 |
35. | Harris, Will | (jeter0296) | Staten Island Yankees | 0.77 |
36. | Montgomery, Jeff | (johnmardis) | Warner Town Animaniacs | 0.78 |
37. | Papelbon, Jonathan | (RichieBlondet) | Brooklyn Boppers | 0.78 |
38. | Adams, Mike | (rreebe916) | Roided Up Crazies | 0.78 |
39. | Diaz, Carlos | (jeter0296) | Freehold Knights | 0.79 |
40. | Gagne, Eric | (richp) | Danville Duds | 0.81 |
41. | Harden, Rich | (tjm) | Silent Assassins | 0.80 |
42. | Holland, Greg | (michelb3514) | Iowa Corn Pickers | 0.81 |
43. | Eichhorn, Mark | (johnmardis) | Warner Town Animaniacs | 0.81 |
44. | Capps, Carter | (chaaad) | Bartons Nighthawks | 0.81 |
45. | Uehara, Koji | (Artinshki) | Base Ball Classics | 0.81 |
46. | Zimmerman, Jeff | (filler8) | WF Greyhounds | 0.82 |
47. | Fromme, Art | (sheikyerboudi) | Bad News Beers | 0.82 |
48. | Melancon, Mark | (Trulaia) | Chapecó Panther | 0.82 |
49. | Foulke, Keith | (sgt714) | Boston Red Sox | 0.83 |
50. | Boxberger, Brad | (roots) | Atari 1600's | 0.82 |

