Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
1. Benitez, Armando Brooklyn Enterprise 2.1
2. Adams, Mike Chicago Outfit 2.3
3. Kimbrel, Craig South Dakota Cyclones 2.7
4. Chapman, Aroldis Boston Bees 2.9
5. Workman, Brandon Ticked Tigers 2.9
6. Hader, Josh Sun City Islanders 3.0
7. Benitez, Armando Philadelphia Phillies 2.9
8. Chapman, Aroldis Macon Friends 3.0
9. Betances, Dellin Raleigh Stallions 3.0
10. Chapman, Aroldis New York Bluebirds 3.1
11. Gagne, Eric Silver Jet 3.1
12. Marmol, Carlos Springfield Troy McClures 3.1
13. Marmol, Carlos Hollywood Stars 3.2
14. Kimbrel, Craig PERRYVILLE PIRATES 3.2
15. Street, Huston Chicago Bratwurst 3.2
16. Jansen, Kenley Manchester Marauders 3.2
17. Hader, Josh Biloxi Blues 3.3
18. Chapman, Aroldis Base Ball Classics 3.3
19. Hader, Josh Base Ball Classics 3.3
20. Saito, Takashi Washington Huskies 3.3
21. Chapman, Aroldis Base Ball Classics 3.3
22. Chapman, Aroldis Htown Skeeters 3.3
23. Chapman, Aroldis Washington Racin' Rebels 3.3
24. Betances, Dellin Las Vegas Silver Knights 3.3
25. Soria, Joakim El paso Predators 3.3
26. Adams, Mike Iowa Corn Pickers 3.3
27. Boxberger, Brad Crieff Highlanders 3.3
28. Chapman, Aroldis Base Ball Bambinos 3.3
29. Adams, Mike Boston Commons 3.3
30. Marmol, Carlos St Louis Spiders 3.3
31. Wagner, Billy Tacoma Predators 3.3
32. Boxberger, Brad California WildFire 3.3
33. Adams, Mike Minot Minotaurs 3.3
34. Ottavino, Adam Atlanta ATLiens 3.3
35. Street, Huston Macon History 3.3
36. Boxberger, Brad Gilchrist Yellow Jackets 3.4
37. Kimbrel, Craig All-Valley Buzz 3.3
38. Chapman, Aroldis Atlanta ATLiens 3.4
39. Kimbrel, Craig Clearwater Crocs 3.4
40. Marmol, Carlos West End Wolves 3.4
41. Betances, Dellin Garret Hill Hilltoppers 3.4
42. Messersmith, Andy Heroes to Zeros 3.4
43. Feliz, Neftali Georgia Swingmen 3.4
44. Adams, Mike donghae Bvndits 3.4
45. McGraw, Tug Team Seven 3.4
46. Adams, Mike High Desert Route 666ers 3.4
47. Alburquerque, Al Stockton Stars 3.4
48. Feliz, Neftali Boston Sox 3.4
49. Gullett, Don Tennessee Muzzle loaders 3.4
50. Feliz, Neftali Dark Roast Coffee Beans 3.4