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. | Kimbrel, Craig | (finalbody) | Montana Ducks | 63 |
| 4. | Clase, Emmanuel | (Jennison) | Twin Cities Twins | 63 |
| 5. | Gagne, Eric | (nycubsfan) | Klein Bearkats | 63 |
| 6. | Adams, Mike | (RichieBlondet) | West Side Whizzers | 62 |
| 7. | Uehara, Koji | (ngdrb) | Clarksdale Delta Drifters | 62 |
| 8. | Harris, Will | (jeter0296) | Staten Island Yankees | 62 |
| 9. | Dibble, Rob | (jeter0296) | Freehold Yankees | 62 |
| 10. | Street, Huston | (nycubsfan) | Sugarland Skeeters | 62 |
| 11. | Jackson, Mike | (filler) | Montana Ducks | 62 |
| 12. | Ward, Duane | (jeter0296) | Freehold Yankees | 61 |
| 13. | Eichhorn, Mark | (injuns) | Long Island Injuns | 61 |
| 14. | Chapman, Aroldis | (Artinshki) | Base Ball Classics | 61 |
| 15. | Bedrosian, Steve | (gpsman) | Crosstown Cranberries | 61 |
| 16. | Adams, Mike | (hayzess) | Columbia Knights | 61 |
| 17. | Kimbrel, Craig | (billyconn) | Denver Pinetar Heroes | 61 |
| 18. | Chapman, Aroldis | (richgibson) | San Diego SPARTICISTS | 60 |
| 19. | Searage, Ray | (Trilling) | LA Tanks | 60 |
| 20. | Kimbrel, Craig | (nycubsfan) | Jackson Heights Nittany Lions | 60 |
| 21. | Hoffman, Trevor | (dalipfhrfc) | Franklin Bums | 60 |
| 22. | Saito, Takashi | (nickachap) | Phoenix Dragons | 60 |
| 23. | Uehara, Koji | (nycubsfan) | NYC Cubbies | 60 |
| 24. | Kimbrel, Craig | (ranger) | GALVESTON HURRICANES | 60 |
| 25. | Chitren, Steve | (Trulaia) | Vermont Lake Monsters | 59 |
| 26. | Gagne, Eric | (cjisboss) | San Francisco Lemmings | 59 |
| 27. | Street, Huston | (nycubsfan) | Jackson Heights Nittany Lions | 59 |
| 28. | Drabowsky, Moe | (hayzess) | San Filipa Toros | 59 |
| 29. | Doolittle, Sean | (nycubsfan) | NY Rangers | 59 |
| 30. | Gossage, Rich | (dynasty) | Boulder Cavemen | 59 |
| 31. | Putz, J.J. | (dynasty) | Dallas Mustangs | 59 |
| 32. | Street, Huston | (nycubsfan) | Goshen Gorillas | 59 |
| 33. | Chapman, Aroldis | (filler) | New Jersey Devils | 59 |
| 34. | Adams, Mike | (filler) | Kentucky Horses | 59 |
| 35. | Wagner, Billy | (bigror25) | Jersey Hooters | 59 |
| 36. | Jansen, Kenley | (Amorphis) | Nashville Sounds | 59 |
| 37. | Doolittle, Sean | (thadjhall) | Manhattan Darts QD12 | 59 |
| 38. | Kimbrel, Craig | (BAR23) | Carolina Bulldogs | 58 |
| 39. | Uehara, Koji | (dynasty) | Arizona Suns | 58 |
| 40. | Street, Huston | (redskingm) | Allentown Assassins | 58 |
| 41. | Chapman, Aroldis | (filler) | Seattle Sloths | 58 |
| 42. | Doolittle, Sean | (filler8) | Boulder Cavemen | 58 |
| 43. | Eichhorn, Mark | (JDfrost) | Greenville All Stars | 58 |
| 44. | Adams, Mike | (BAR23) | HARTFORD WHALERS | 58 |
| 45. | Rodney, Fernando | (bostontex24) | Boston Riversharks | 58 |
| 46. | Chapman, Aroldis | (Artinshki) | Base Ball Bambinos | 58 |
| 47. | Eckersley, Dennis | (walle-1) | Chicago Reapers | 58 |
| 48. | Gagne, Eric | (danmcvay1) | PBC Pirates | 58 |
| 49. | Kela, Keone | (lasershow) | Iowa Cornhuskers | 58 |
| 50. | Eckersley, Dennis | (Trulaia) | Vermont Lake Monsters | 58 |
