Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
Single-Season Leaders (Saves)
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. | Kimbrel, Craig | (dynasty8) | Dixie Boy Happy Toyz | 63 |
| 2. | Gagne, Eric | (nycubsfan) | Klein Bearkats | 63 |
| 3. | Street, Huston | (nycubsfan) | Sugarland Skeeters | 62 |
| 4. | Harris, Will | (jeter0296) | Staten Island Yankees | 62 |
| 5. | Jackson, Mike | (nmiller4) | Cincinnati Reds | 62 |
| 6. | Adams, Mike | (RichieBlondet) | West Side Whizzers | 62 |
| 7. | Dibble, Rob | (jeter0296) | Freehold Yankees | 62 |
| 8. | Eckersley, Dennis | (dynasty) | Ponderosa Puppers | 62 |
| 9. | Kimbrel, Craig | (rreebe916) | Denver Pinetar Heroes | 61 |
| 10. | Adams, Mike | (hayzess) | Columbia Knights | 61 |
| 11. | Ward, Duane | (jeter0296) | Freehold Yankees | 61 |
| 12. | Chapman, Aroldis | (Artinshki) | Base Ball Classics | 60 |
| 13. | Uehara, Koji | (nycubsfan) | NYC Cubbies | 60 |
| 14. | Hoffman, Trevor | (Lostit) | Las Vegas Lost Cubs | 60 |
| 15. | Kimbrel, Craig | (ranger) | GALVESTON HURRICANES | 60 |
| 16. | Gossage, Rich | (Epicurius) | aaa aaa | 59 |
| 17. | Putz, J.J. | (Tjm) | Moose Jaw Cyclones | 59 |
| 18. | Jansen, Kenley | (Amorphis) | San Gabriel Willys | 59 |
| 19. | Drabowsky, Moe | (hayzess) | San Filipa Toros | 59 |
| 20. | Chapman, Aroldis | (Artinshki) | Base Ball Classics | 59 |
| 21. | Doolittle, Sean | (filler) | Macon Faces | 59 |
| 22. | Chitren, Steve | (Trulaia) | Vermont Lake Monsters | 59 |
| 23. | Street, Huston | (nycubsfan) | Jackson Heights Nittany Lions | 59 |
| 24. | Adams, Mike | (rreebe916) | SCOTT COUNTY STINGERS | 59 |
| 25. | Wagner, Billy | (HoustonCougar) | Houston Colt 45's | 59 |
| 26. | Adams, Mike | (Artinshki) | Base Ball Homers | 58 |
| 27. | Adams, Mike | (nycubsfan) | NY Rangers | 58 |
| 28. | Smith, Dave | (maulucci16) | Base Robbers | 58 |
| 29. | Eckersley, Dennis | (filler) | Halawa Rangers | 58 |
| 30. | Harris, Bill | (ExposMe) | Fletcher Fireballs | 58 |
| 31. | Uehara, Koji | (rreebe916) | Boston Boo | 58 |
| 32. | Chapman, Aroldis | (Artinshki) | Base Ball Classics | 58 |
| 33. | Adams, Mike | (tgbsbl1967) | Honolulu Whalers | 58 |
| 34. | Eckersley, Dennis | (Trulaia) | Vermont Lake Monsters | 58 |
| 35. | Chapman, Aroldis | (Artinshki) | Base Ball Bambinos | 58 |
| 36. | Eichhorn, Mark | (JDFrost) | Greenville All Stars | 58 |
| 37. | Street, Huston | (Tjm) | New England Ballplayers | 58 |
| 38. | Rodney, Fernando | (gr33nappleboy) | Emerald City Blazers | 58 |
| 39. | Gagne, Eric | (FeartheBeard) | Rich. Dukes | 57 |
| 40. | Eichhorn, Mark | (gpsman) | Crosstown Cranberries | 57 |
| 41. | Eichhorn, Mark | (gpsman) | Crosstown Cranberries | 57 |
| 42. | LaRoche, Dave | (Lstiver) | Boston Bees | 57 |
| 43. | Doolittle, Sean | (nycubsfan) | San Antonio Texans | 57 |
| 44. | Gagne, Eric | (JohnHeidy) | Franklin Lightning | 57 |
| 45. | Uehara, Koji | (nycubsfan) | Jackson Heights Nittany Lions | 57 |
| 46. | Fingers, Rollie | (filler) | Classic City 755s | 57 |
| 47. | Gagne, Eric | (Tbone34) | Awesome Mets | 57 |
| 48. | Uehara, Koji | (nycubsfan) | American Pharoahs | 57 |
| 49. | Drabowsky, Moe | (hayzess) | New York Knights | 57 |
| 50. | Kimbrel, Craig | (nycubsfan) | Sugarland Skeeters | 57 |
