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. | Gagne, Eric | (nycubsfan) | Klein Bearkats | 63 |
| 2. | Kimbrel, Craig | (jericho2u) | Dixie Boy Happy Toyz | 63 |
| 3. | Cruz, Victor | (brawlers) | Texas Brawlers | 63 |
| 4. | Harris, Will | (jeter0296) | Staten Island Yankees | 62 |
| 5. | Jackson, Mike | (shelley71) | Burma Harry Butz | 62 |
| 6. | Eckersley, Dennis | (Choob) | Ponderosa Puppers | 62 |
| 7. | Dibble, Rob | (jeter0296) | Freehold Yankees | 62 |
| 8. | Street, Huston | (nycubsfan) | Sugarland Skeeters | 62 |
| 9. | Adams, Mike | (hayzess) | Columbia Knights | 61 |
| 10. | Kimbrel, Craig | (rreebe916) | Denver Pinetar Heroes | 61 |
| 11. | Doolittle, Sean | (nycubsfan) | Jackson Heights Nittany Lions | 60 |
| 12. | Uehara, Koji | (nycubsfan) | NYC Cubbies | 60 |
| 13. | Hader, Josh | Dunder Mifflin Paper Products | 60 | |
| 14. | Chapman, Aroldis | (Artinshki) | Base Ball Classics | 60 |
| 15. | Hoffman, Trevor | (Lostit) | Las Vegas Lost Cubs | 60 |
| 16. | Putz, J.J. | (Tjm) | Moose Jaw Cyclones | 59 |
| 17. | Adams, Mike | (ranger) | SCOTT COUNTY STINGERS | 59 |
| 18. | Chapman, Aroldis | (Artinshki) | Base Ball Classics | 59 |
| 19. | Drabowsky, Moe | (hayzess) | San Filipa Toros | 59 |
| 20. | Chitren, Steve | (Trulaia) | Vermont Lake Monsters | 59 |
| 21. | Wagner, Billy | Washington Angels | 59 | |
| 22. | Street, Huston | (nycubsfan) | Jackson Heights Nittany Lions | 59 |
| 23. | Doolittle, Sean | (nycubsfan) | NYC Cubbies | 58 |
| 24. | Rodney, Fernando | (gr33nappleboy) | Emerald City Blazers | 58 |
| 25. | Smith, Dave | (maulucci16) | Base Robbers | 58 |
| 26. | Adams, Mike | (tgbsbl1967) | Honolulu Whalers | 58 |
| 27. | Harris, Bill | Fletcher Fireballs | 58 | |
| 28. | Adams, Mike | (Artinshki) | Base Ball Homers | 58 |
| 29. | Adams, Mike | (nycubsfan) | NY Rangers | 58 |
| 30. | Haid, Hal | (morangslick) | Sacramento Tree City's | 58 |
| 31. | Eckersley, Dennis | (Trulaia) | Vermont Lake Monsters | 58 |
| 32. | Eckersley, Dennis | (brmfan) | Halawa Rangers | 58 |
| 33. | Myers, Randy | (montanajack) | Uniondale Firebirds | 58 |
| 34. | Chapman, Aroldis | (Artinshki) | Base Ball Classics | 58 |
| 35. | Uehara, Koji | (jaredhamann) | Sarasota Sharks | 58 |
| 36. | Eichhorn, Mark | (JDFrost) | Greenville All Stars | 58 |
| 37. | Chapman, Aroldis | (Artinshki) | Base Ball Bambinos | 58 |
| 38. | Betances, Dellin | (plpl512) | Montreal Machine | 58 |
| 39. | Doolittle, Sean | (nycubsfan) | San Antonio Texans | 57 |
| 40. | Brown, Jumbo | (GLOBEXcorp) | GLOBEX Corporation | 57 |
| 41. | Uehara, Koji | (nycubsfan) | American Pharoahs | 57 |
| 42. | Henry, Doug | (jeter0296) | Freehold Yankees | 57 |
| 43. | Kimbrel, Craig | (nycubsfan) | Sugarland Skeeters | 57 |
| 44. | Uehara, Koji | (nycubsfan) | Jackson Heights Nittany Lions | 57 |
| 45. | Capps, Carter | (coachmcs) | North Beach Bums | 57 |
| 46. | Drabowsky, Moe | (hayzess) | New York Knights | 57 |
| 47. | Eichhorn, Mark | (gpsman) | Crosstown Cranberries | 57 |
| 48. | Eichhorn, Mark | (gpsman) | Crosstown Cranberries | 57 |
| 49. | Gagne, Eric | (huckleberry) | Frankfurt Federals | 57 |
| 50. | Fingers, Rollie | (Edge33) | Classic City 755s | 57 |
