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. | Clase, Emmanuel | New Jersey Devils | 63 | |
| 5. | Kimbrel, Craig | (Artinshki) | Minnesota Charlie Browns | 63 |
| 6. | Street, Huston | (nycubsfan) | Sugarland Skeeters | 62 |
| 7. | Jackson, Mike | (filler) | Miami Serpents | 62 |
| 8. | Uehara, Koji | (ngdrb) | Clarksdale Delta Drifters | 62 |
| 9. | Dibble, Rob | (jeter0296) | Freehold Yankees | 62 |
| 10. | Harris, Will | (Jeter0296) | Staten Island Yankees | 62 |
| 11. | Adams, Mike | (RichieBlondet) | West Side Whizzers | 62 |
| 12. | Kimbrel, Craig | (CoachHollett) | Denver Pinetar Heroes | 61 |
| 13. | Bedrosian, Steve | (GPSMAN) | Crosstown Cranberries | 61 |
| 14. | Ward, Duane | (jeter0296) | Freehold Yankees | 61 |
| 15. | Adams, Mike | (dynasty) | Arizona Suns | 61 |
| 16. | Chapman, Aroldis | (Artinshki) | Base Ball Classics | 61 |
| 17. | Eichhorn, Mark | (injuns) | Long Island Injuns | 61 |
| 18. | Uehara, Koji | (nycubsfan) | NYC Cubbies | 60 |
| 19. | Searage, Ray | (Trilling) | LA Tanks | 60 |
| 20. | Saito, Takashi | (nickachap) | Phoenix Dragons | 60 |
| 21. | Kimbrel, Craig | (Boriwulf26) | Gainesville Guardians | 60 |
| 22. | Kimbrel, Craig | (nycubsfan) | Jackson Heights Nittany Lions | 60 |
| 23. | Chapman, Aroldis | (RichGibson) | San Diego SPARTICISTS | 60 |
| 24. | Hoffman, Trevor | (jlaw1977ab) | Jamestown Jaguars | 60 |
| 25. | Street, Huston | (nycubsfan) | Goshen Gorillas | 59 |
| 26. | Adams, Mike | (RichGibson) | Detorit PURPLE GANG | 59 |
| 27. | Drabowsky, Moe | (hayzess) | San Filipa Toros | 59 |
| 28. | Chitren, Steve | (Trulaia) | Vermont Lake Monsters | 59 |
| 29. | Doolittle, Sean | (filler) | Salem Demons | 59 |
| 30. | Jansen, Kenley | (bmilliron) | Nashville Sounds | 59 |
| 31. | Street, Huston | (nycubsfan) | Jackson Heights Nittany Lions | 59 |
| 32. | Chapman, Aroldis | (ranger) | JACKSON JETS | 59 |
| 33. | Drabowsky, Moe | (hayzess) | Oregon WEBFOOT | 59 |
| 34. | Wagner, Billy | (bigror25) | Jersey Hooters | 59 |
| 35. | Gossage, Rich | New Jersey Devils | 59 | |
| 36. | Putz, J.J. | (filler) | Utah Nightmares | 59 |
| 37. | Gagne, Eric | (cjisboss) | San Francisco Lemmings | 59 |
| 38. | Doolittle, Sean | (nycubsfan) | NY Rangers | 59 |
| 39. | Gagne, Eric | (danmcvay1) | PBC Pirates | 58 |
| 40. | Rodney, Fernando | (bostontex24) | Boston Riversharks | 58 |
| 41. | Street, Huston | (Crackpot) | Yachats 🍄Fun Guys🍄 | 58 |
| 42. | Doolittle, Sean | (dynasty) | Utah Nightmares | 58 |
| 43. | Chapman, Aroldis | (CoachHollett) | Pittsburgh Plunder | 58 |
| 44. | Kimbrel, Craig | (NickyTru) | Mesa Mountain Lions | 58 |
| 45. | Eckersley, Dennis | (walle-1) | Chicago Reapers | 58 |
| 46. | Adams, Mike | (dynasty) | Sacramento Lions | 58 |
| 47. | Adams, Mike | (nycubsfan) | NY Rangers | 58 |
| 48. | Smith, Dave | (maulucci16) | Base Robbers | 58 |
| 49. | Kela, Keone | (lasershow) | Iowa Cornhuskers | 58 |
| 50. | Eckersley, Dennis | (Trulaia) | Vermont Lake Monsters | 58 |
