Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
1. Benitez, Armando Panama city Wolves 65
2. Dotel, Octavio Thousand Oaks Thunder 65
3. Gagne, Eric Vanden Vikings 61
4. Romo, Vicente Mid-Century Moderns 61
5. Kimbrel, Craig Nevada Racin' Rebels 60
6. Percival, Troy Montreal Expos 60
7. Adams, Mike New York Knights 59
8. Betances, Dellin Turner Bulldogs 59
9. Street, Huston Boston Thunderbolts 59
10. Romo, Vicente A-P Falcons 59
11. Wagner, Billy Nevada Racin' Rebels 59
12. Putz, J.J. New York Mets 58
13. Chapman, Aroldis Nashville Knights 58
14. Eichhorn, Mark Sunnyvale Trash Pandas 58
15. Britton, Zach Bartonsville Pumas 58
16. Gagne, Eric Panama city Wolves 57
17. Doolittle, Sean OC Wolves 57
18. Gossage, Rich Midland RockHounds 57
19. Doolittle, Sean OC Bulldogs 57
20. Eichhorn, Mark Iowa Corn Pickers 57
21. Jansen, Kenley The Dangerous Alliance 57
22. Kimbrel, Craig New York Knights 57
23. Street, Huston High Desert Dead Possums 57
24. Betancourt, Rafael Shanghai Maggots 57
25. Eichhorn, Mark Warner Town Animaniacs 57
26. Nathan, Joe Singapore Slingers 57
27. Drabowsky, Moe Loudoun Lassos 56
28. Papelbon, Jonathan Chicago Lost Cubs 56
29. Feliz, Neftali Gas City Gang 56
30. Gossage, Rich Dubose Legends 56
31. Gagne, Eric Washington Racin' Rebels 56
32. Green, Chad Marathon Red Dragons 56
33. Gagne, Eric Derry Fear 56
34. Feliz, Neftali Carolina Racin' Wrens 56
35. Barraclough, Kyle Richmond Aces 56
36. Gagne, Eric Sin City High Rollers 56
37. Wilhelm, Hoyt Brooklyn Dodgers 56
38. Madson, Ryan Covington Conquerors 56
39. Uehara, Koji The Dangerous Alliance 56
40. Benoit, Joaquin Nevada Racin' Rebels 56
41. Boxberger, Brad Boston Athletics 55
42. Murray, Dale Kingston Comets 55
43. Rivera, Mariano Fremont Street Moo 55
44. Eichhorn, Mark Byrnes Rebels 55
45. Kimbrel, Craig Marathon Red Dragons 55
46. Uehara, Koji Washington Angry Ducks 55
47. House, Tom Billings Bombers 55
48. Kimbrel, Craig Mid - Atlantic Maelstrom 55
49. Percival, Troy Chicago Cubs 55
50. Eckersley, Dennis Chicago Cubs 55