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. | Bedrosian, Steve | (brawlers) | Texas Brawlers | 66 |
| 2. | Uehara, Koji | (nycubsfan) | JACKSON HEIGHTS SHARKS | 64 |
| 3. | Gagne, Eric | (nycubsfan) | Klein Bearkats | 63 |
| 4. | Kimbrel, Craig | (Ask12be1) | Ventura Bulldogs | 63 |
| 5. | Eckersley, Dennis | (shelley71) | Brooklyn Bees | 62 |
| 6. | Harris, Will | (jeter0296) | Staten Island Yankees | 62 |
| 7. | Adams, Mike | (RichieBlondet) | West Side Whizzers | 62 |
| 8. | Dibble, Rob | (jeter0296) | Freehold Yankees | 62 |
| 9. | Jackson, Mike | (nmiller4) | Cincinnati Reds | 62 |
| 10. | Street, Huston | (nycubsfan) | Sugarland Skeeters | 62 |
| 11. | Adams, Mike | (hayzess) | Columbia Knights | 61 |
| 12. | Bedrosian, Steve | (gpsman) | Crosstown Cranberries | 61 |
| 13. | Ward, Duane | (jeter0296) | Freehold Yankees | 61 |
| 14. | Eichhorn, Mark | (injuns) | Long Island Injuns | 61 |
| 15. | Chapman, Aroldis | (Artinshki) | Base Ball Classics | 61 |
| 16. | Kimbrel, Craig | (rreebe916) | Denver Pinetar Heroes | 61 |
| 17. | Hoffman, Trevor | (ISU_Doubledown) | Iowa Cubs | 60 |
| 18. | Uehara, Koji | (nycubsfan) | NYC Cubbies | 60 |
| 19. | Kimbrel, Craig | (ranger) | GALVESTON HURRICANES | 60 |
| 20. | Chapman, Aroldis | (richgibson) | San Diego SPARTICISTS | 60 |
| 21. | Kimbrel, Craig | (nycubsfan) | Jackson Heights Nittany Lions | 60 |
| 22. | Adams, Mike | (rreebe916) | SCOTT COUNTY STINGERS | 59 |
| 23. | Wagner, Billy | (bigror25) | Jersey Hooters | 59 |
| 24. | Drabowsky, Moe | (hayzess) | San Filipa Toros | 59 |
| 25. | Street, Huston | (nycubsfan) | Goshen Gorillas | 59 |
| 26. | Gagne, Eric | (MikeDrop0221) | Springfield NUCLEAR POWER | 59 |
| 27. | Doolittle, Sean | (thadjhall) | Manhattan Darts QD12 | 59 |
| 28. | Chapman, Aroldis | Boston Bees | 59 | |
| 29. | Chitren, Steve | (Trulaia) | Vermont Lake Monsters | 59 |
| 30. | Street, Huston | (nycubsfan) | Jackson Heights Nittany Lions | 59 |
| 31. | Jansen, Kenley | (Amorphis) | Nashville Sounds | 59 |
| 32. | Gossage, Rich | (filler8) | Georgia Swingmen | 59 |
| 33. | Putz, J.J. | (filler) | Moose Jaw Cyclones | 59 |
| 34. | Rodney, Fernando | (lasershow) | Camden Riversharks | 58 |
| 35. | Chapman, Aroldis | (Artinshki) | Base Ball Bambinos | 58 |
| 36. | Harris, Bill | (filler) | MC Powder Kegs | 58 |
| 37. | Eckersley, Dennis | (Trulaia) | Vermont Lake Monsters | 58 |
| 38. | Eckersley, Dennis | (Acorn) | Halawa Rangers | 58 |
| 39. | Street, Huston | (Papa1014) | ARKANSAS SOD BUSTERS | 58 |
| 40. | Chapman, Aroldis | (Artinshki) | Base Ball Classics | 58 |
| 41. | Adams, Mike | (big_papi001) | Maine Black Bears | 58 |
| 42. | Adams, Mike | (nycubsfan) | NY Rangers | 58 |
| 43. | Smith, Dave | (Maulucci16) | Base Robbers | 58 |
| 44. | Adams, Mike | (BAR23) | HARTFORD WHALERS | 58 |
| 45. | Doolittle, Sean | (Cardscoach) | Wichita Aces | 58 |
| 46. | Uehara, Koji | (filler) | Balltown Shockers | 58 |
| 47. | Eichhorn, Mark | (JDFrost) | Greenville All Stars | 58 |
| 48. | Kimbrel, Craig | (rawlscl78) | Bulltimore Bullwinkles | 58 |
| 49. | Gagne, Eric | (JohnHeidy) | Franklin Lightning | 57 |
| 50. | Uehara, Koji | (nycubsfan) | American Pharoahs | 57 |
