Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
1. Feliz, Neftali Washington Angry Ducks 1.7
2. McHugh, Collin Appalachian Moonshiners 2.2
3. Edwards, Carl New York Mets 2.3
4. Street, Huston Tuvalu Copras 2.3
5. Marmol, Carlos Portland Beavers 2.3
6. Hader, Josh Oshkosh SMC 2.4
7. Papelbon, Jonathan San Antonio Texans 2.4
8. Saucier, Kevin Istanbul TurkishDelight🇹🇷 2.4
9. Boxberger, Brad Asbury Park LUMPEN PROLS 2.4
10. Kimbrel, Craig Wormsleyburg Warriors 2.4
11. Kimbrel, Craig Pope Pius Pals 2.5
12. Valverde, Jose Hogan’s Heroes 2.5
13. Gagne, Eric Scottsdale Suns 2.6
14. Hader, Josh Fargo Freeze 2.6
15. Guthrie, Mark Ladson Cougars 2.6
16. Wagner, Billy Texas Tomahawks 2.6
17. Papelbon, Jonathan Boston Sox 2.6
18. Feliz, Neftali Washington Angry Ducks 2.6
19. Marmol, Carlos Beuhlah Land Bunyans 2.6
20. Adams, Mike Carolina Mad Ducks 2.6
21. Kuo, Hong-Chih Nashville Sounds 2.6
22. Street, Huston South Texas Killer Bees 2.7
23. Wagner, Billy Goshen Gorillas 2.7
24. Chapman, Aroldis Chicago Colts 2.6
25. Soriano, Rafael Hawaii Five 0's 2.7
26. Nen, Robb Pope Pius Pals 2.7
27. Percival, Troy Iowa Corn Pickers 2.6
28. Adams, Mike Singapore Slingers 2.7
29. Valverde, Jose Badboy Brawlers 2.7
30. Segui, Diego Brooklyn Superbas 2.7
31. Dotel, Octavio Atchafalaya Mud Bugs 2.7
32. Balfour, Grant Way Down Yonder Chatahoochies 2.7
33. Wagner, Billy Murdock Miners 2.7
34. Doolittle, Sean Delaware Gators 2.7
35. Kimbrel, Craig Fredricksburg Feds 2.7
36. Doolittle, Sean Chester Springs Menjai 2.7
37. Feliz, Neftali Kazoo SdS 2.7
38. Hader, Josh New York Cubans 2.7
39. Feliz, Neftali South Dakota Storm 2.8
40. Soriano, Rafael Iowa Corn Pickers 2.8
41. Balfour, Grant Chenango Wolves 2.8
42. Lidge, Brad Bay Area Bulldogs 2.8
43. Kimbrel, Craig Tijuana Chupacabras⚾ 2.8
44. Nen, Robb Milwaukee Beers 2.8
45. Miller, Andrew Alinor High elves 2.8
46. Balfour, Grant Iowa Corn Pickers 2.8
47. Betances, Dellin New York Black Yankees 2.8
48. Treinen, Blake Toledo Mighty Hens 2.8
49. Kimbrel, Craig Ny Mets 2.8
50. Diaz, Edwin St. Louis Venom 2.8