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. Adams, Mike Carolina Mad Ducks 0.45
6. Saito, Takashi Chicago Colts 0.45
7. Saito, Takashi CP Town United 0.46
8. Jansen, Kenley Giraffe Loogies 0.46
9. Papelbon, Jonathan San Antonio Texans 0.46
10. Kimbrel, Craig Boston Sox 0.46
11. Putz, J.J. Singapore Slingers 0.46
12. Uehara, Koji Rhode Island Shark Attack 0.47
13. Uehara, Koji Cu Chi TUNNEL VICTORS 0.47
14. Kimbrel, Craig Wormsleyburg Warriors 0.47
15. Doolittle, Sean Chester Springs Menjai 0.48
16. Young, Cy Drunken Gamblers 0.49
17. Doolittle, Sean Southside Sabotage Hitmen 0.49
18. Eckersley, Dennis LaCrosse Loggers 0.49
19. Eckersley, Dennis Even Flow 0.50
20. Rivera, Mariano Van Buren Boys 0.50
21. Gregerson, Luke RUNAWay SLAvES 0.50
22. Uehara, Koji Cali KillerWasps 0.51
23. Kimbrel, Craig Pope Pius Pals 0.51
24. Uehara, Koji Singapore Slingers 0.52
25. Kimbrel, Craig Birchville Bulldogs 0.52
26. McHugh, Collin Appalachian Moonshiners 0.52
27. Jansen, Kenley Iowa Corn Pickers 0.52
28. Adams, Mike New York Knights 0.52
29. Adams, Mike Honolulu Punchers 0.52
30. Gagne, Eric Cape Cod Steamers⚾ 0.52
31. Uehara, Koji Iowa Corn Pickers 0.53
32. Kimbrel, Craig Fredricksburg Feds 0.53
33. Davis, Wade Brooklyn Excelsiors 0.53
34. Saito, Takashi Worcester Warriors 0.53
35. Kimbrel, Craig Washington DC Democrats 0.53
36. Percival, Troy Chico’s Bail Bonds 0.53
37. Doolittle, Sean Jackson Heights Knights 0.53
38. Gagne, Eric Weesles Ripped My Flesh 0.54
39. Uehara, Koji Windsor Kick Aces 0.54
40. Doolittle, Sean American Pharoahs 0.54
41. Chapman, Aroldis Chicago Colts 0.54
42. Eichhorn, Mark Warner Town Animaniacs 0.54
43. Rivera, Mariano Cooperstown Poodles 0.54
44. Putz, J.J. Peshtigo Wolves 0.54
45. Kimbrel, Craig Lancaster Lefties 0.54
46. Edwards, Carl New York Mets 0.55
47. Kimbrel, Craig ARCTIC .50 EXOTICS 0.55
48. Gagne, Eric New York Stars 0.55
49. Saito, Takashi Jersey City Hooligans 0.55
50. Miller, Andrew Toronto Blue Birds 0.55