Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
1. deGrom, Jacob Central PA Black Mantas 22
2. Cole, Gerrit Arkansas Trojans 22
3. Maddux, Greg PBC Pirates 21
4. Morton, Charlie Daffy Ducks 21
5. Bieber, Shane New York Mets 21
6. Wheeler, Zack NEW YORK MONARCHS 20
7. Joss, Addie Cleveland Spiders 20
8. Darvish, Yu Washington Co. Wasps 20
9. Leonard, Dutch Batavia Bulldogs 20
10. Wheeler, Zack Pabst Blue Ribbons 20
11. Ohtani, Shohei Oakmont Yankees 20
12. Ohtani, Shohei Oakmont Yankees 20
13. Gallen, Zac Mudville Wolfpack 20
14. Buehler, Walker Pabst Blue Ribbons 20
15. Nola, Aaron Elkhart Blue Blazers 20
16. Santana, Johan Fast Plastic 19
17. Lugo, Seth Brooklyn Dodgers 19
18. King, Silver Farmer Blow Anteaters 19
19. Wright, Kyle BRENTWOOD MARVELS 19
20. Gonsolin, Tony Ellenton Traitors 19
21. Pelty, Barney El Paso Chihuahuas 19
22. Nola, Aaron Michigan Barnstormers 19
23. Chesbro, Jack Dukes of Tralee 19
24. Baldwin, Lady Mojave Desert RabidArmadillos 19
25. Pfiester, Jack City Pound Canine 19
26. Buehler, Walker Uncle Bus 19
27. Santana, Johan Portland Piss Ants 19
28. Woodruff, Brandon South Dakota WOMBATS 19
29. Darvish, Yu Gothic City Batsmen 19
30. Corcoran, Larry We're Only In It For The Money 18
31. Clarkson, John Big Stans 18
32. Mikolas, Miles STEPPIN WOLF MAGIC CARPET RIDE 18
33. Taillon, Jameson Cincinnati Brew 18
34. Bauer, Trevor Lorain Loons 18
35. Howell, Harry Brooklyn Robins 18
36. Lauer, Eric Daffy Ducks 18
37. Verlander, Justin Western Wild wolves 18
38. Chesbro, Jack Galena Goons 18
39. McKenzie, Triston Bloxwich Ballers 18
40. Gallen, Zac Ft. Lauderdale Dogs 18
41. Owen, Frank Fred Flinstoners 18
42. Driscoll, Denny aaa aaa 18
43. Nichols, Kid La Crosse Old Styles 18
44. Manoah, Alek Atlantic City Bullets 18
45. Cole, Gerrit Pabst Blue Ribbons 18
46. Martinez, Pedro Atlanta Grays 18
47. Bieber, Shane Detroit D-Fence 18
48. Wood, Kerry Stockton Stars 18
49. McClanahan, Shane Oakland Elephants 18
50. Nola, Aaron Boston Blue Fins 18