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 | (nickachap) | Central Hedgehoppers | 65 |
| 2. | Street, Huston | (batista) | Cleveland Naps | 65 |
| 3. | Cruz, Victor | (brawlers) | Texas Brawlers | 63 |
| 4. | Uehara, Koji | (nycubsfan) | Jackson Heights Knights | 63 |
| 5. | Uehara, Koji | (filler) | Round Rock Rhinos | 62 |
| 6. | Geggus, Charlie | (Fungoking) | Tulsa Drillers | 62 |
| 7. | Adams, Mike | (nycubsfan) | Rochester Red Wings | 61 |
| 8. | Lockwood, Skip | (DaveH) | Ladson Cougars | 61 |
| 9. | Jansen, Kenley | (nondh) | Okanagan E-Gulls | 61 |
| 10. | Davis, Ron | (GRW3) | New London Sharks | 61 |
| 11. | Wagner, Billy | (PalinJames) | Erie Knights | 61 |
| 12. | Doolittle, Sean | (nycubsfan) | Chicago Cubs | 61 |
| 13. | Doolittle, Sean | (nycubsfan) | NYC Cubbies | 61 |
| 14. | Hader, Josh | (maulucci16) | The Felix All Timers ⚾️ | 60 |
| 15. | Kimbrel, Craig | (ranger) | VALDOSTA VOLCANOES | 60 |
| 16. | Uehara, Koji | (hayzess) | Portland Rain | 60 |
| 17. | Wagner, Billy | (test-user) | New York Dragons | 60 |
| 18. | Beck, Rod | (Yitzi) | Saint Denis Snappers | 60 |
| 19. | Kimbrel, Craig | (sytsmab) | Sactown Royalty | 60 |
| 20. | Doolittle, Sean | (nycubsfan) | Jackson Heights Nittany Lions | 60 |
| 21. | Uehara, Koji | (honez) | South Texas Pigmen | 60 |
| 22. | Davis, Wade | (Casey_Stengel37) | Saskatoon Dragoons | 59 |
| 23. | Gossage, Rich | (Sidneypointers) | Longview Outcasts | 59 |
| 24. | Feliz, Neftali | (sammy-z) | Scoville Stoney Birds | 59 |
| 25. | Wilhelm, Hoyt | (noleary) | Philadelphia Express | 59 |
| 26. | Gagne, Eric | (nycubsfan) | Jackson Heights Nittany Lions | 59 |
| 27. | Adams, Mike | (Gaberino) | Peoria Nightriders | 59 |
| 28. | Hoffman, Trevor | (tda81) | The Dangerous Alliance | 59 |
| 29. | Feliz, Neftali | (vonveezil) | Wichita Wasps | 59 |
| 30. | Adams, Mike | (dynasty) | Canarsie Cannibals | 59 |
| 31. | Adams, Mike | (PalinJames) | Erie Dragons | 59 |
| 32. | Doolittle, Sean | (dunroche) | Nevada Racin' Rebels | 58 |
| 33. | Doolittle, Sean | (nycubsfan) | NYC Cubbies | 58 |
| 34. | Myers, Randy | (montanajack) | Uniondale Firebirds | 58 |
| 35. | Hader, Josh | (davengmusic) | Auckerman Descendents | 58 |
| 36. | Adams, Mike | (nycubsfan) | Sugarland Skeeters | 58 |
| 37. | Kimbrel, Craig | (rainman) | Jambi's Wish | 58 |
| 38. | Betances, Dellin | (plpl512) | Montreal Machine | 58 |
| 39. | Doolittle, Sean | (nycubsfan) | Jackson Heights Knights | 58 |
| 40. | Smith, Dave | (maulucci16) | 1980’s One Hit Wonders ⚾️ | 58 |
| 41. | Wagner, Billy | (filler8) | Illinois Cattlefeeders | 58 |
| 42. | Kimbrel, Craig | (dunroche) | Inland Empire 66ers | 58 |
| 43. | Uehara, Koji | (HoustonCougar) | Houston Colt 45's | 58 |
| 44. | Haid, Hal | (cshaffer) | Central Blue Sox | 58 |
| 45. | Messersmith, Andy | (Dark) | Hell Razors | 57 |
| 46. | Wagner, Billy | (nycubsfan) | Goshen Gorillas | 57 |
| 47. | Benoit, Joaquin | (nycubsfan) | San Antonio Texans | 57 |
| 48. | Gagne, Eric | (nycubsfan) | NYC Cubbies | 57 |
| 49. | Capps, Carter | (Bryzzo14) | Illinoian Tight Jeans | 57 |
| 50. | Uehara, Koji | (REVEJB) | Tao Yin Yangs | 57 |