Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
1. Feliz, Neftali Washington Angry Ducks 0.33
2. Miller, Andrew Chester Springs Menjai 0.42
3. Betancourt, Rafael Staten Island Express 0.42
4. Boxberger, Brad Asbury Park LUMPEN PROLS 0.44
5. Saito, Takashi Chicago Colts 0.45
6. Saito, Takashi CP Town United 0.46
7. Papelbon, Jonathan San Antonio Texans 0.46
8. Kimbrel, Craig Boston Sox 0.46
9. Putz, J.J. Singapore Slingers 0.46
10. Uehara, Koji Rancho Rascals 0.47
11. Doolittle, Sean Chester Springs Menjai 0.48
12. Hernandez, David Hagerstown Suns 0.48
13. Doolittle, Sean Southside Sabotage Hitmen 0.49
14. Eckersley, Dennis LaCrosse Loggers 0.49
15. Eckersley, Dennis Even Flow 0.50
16. Rivera, Mariano Van Buren Boys 0.50
17. Gregerson, Luke RUNAWay SLAvES 0.50
18. Uehara, Koji Village Falcons 0.51
19. Kimbrel, Craig Pope Pius Pals 0.51
20. Kimbrel, Craig Staten Island Kings 0.52
21. McHugh, Collin Appalachian Moonshiners 0.52
22. Jansen, Kenley Iowa Corn Pickers 0.52
23. Adams, Mike New York Knights 0.52
24. Adams, Mike Honolulu Punchers 0.52
25. Uehara, Koji Iowa Corn Pickers 0.53
26. Kimbrel, Craig Fredricksburg Feds 0.53
27. Davis, Wade Brooklyn Excelsiors 0.53
28. Smith, Lee Singapore Straits Tigers 0.53
29. Gregerson, Luke Las Vegas Scorpions 0.53
30. Kimbrel, Craig Philly Elephants 0.53
31. Percival, Troy Chico’s Bail Bonds 0.53
32. Doolittle, Sean Jackson Heights Knights 0.53
33. Gagne, Eric Weesles Ripped My Flesh 0.54
34. Uehara, Koji Windsor Kick Aces 0.54
35. Doolittle, Sean American Pharoahs 0.54
36. Chapman, Aroldis Chicago Colts 0.54
37. Ottavino, Adam Iowa Fighting Pigs 0.54
38. Papelbon, Jonathan Westside Wolves 0.54
39. Rivera, Mariano Cooperstown Poodles 0.54
40. Putz, J.J. Peshtigo Wolves 0.54
41. Kimbrel, Craig Lancaster Racin' Stars 0.54
42. Edwards, Carl New York Mets 0.55
43. Kimbrel, Craig CAPE COD BLUEFISH 0.55
44. Gagne, Eric Brampton Bandits 0.55
45. Saito, Takashi Dublin Shenanigans 0.55
46. Adams, Mike Marion Beatlemaniacs 0.55
47. Papelbon, Jonathan BOSTON ARGYLES 0.55
48. Zimmerman, Jeff Baltimore Orioles 0.55
49. Holland, Greg Fredricksburg Feds 0.55
50. Rogers, Taylor Erie Spartans 0.55