Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
Single-Season Leaders (Homers Allowed)
Average
OBP
SLG
OPS
At Bats
Runs
Hits
Doubles
Triples
Homers
RBIs
Walks
Strikeouts
Stolen Bases
Caught Stealing
Sac Hits
Sac Fly
HBP
GIDP
D+/-
Wins
Losses
ERA
WHIP
Innings
Hits Allowed
HR Allowed
Walks (P)
Strikeouts (p)
Complete Games
Saves
Blown Saves
Shutouts
Quality Starts
Wild Pitches
Hit Batters
H/9
BB/9
SO/9
| 1. | Bundy, Dylan | Westside Sweatmen | 67 | |
| 2. | Morris, Jack | Mayport Sharks | 65 | |
| 3. | Scherzer, Max | (hoopdirt) | Boston Bees | 64 |
| 4. | Berrios, Jose | (Bsinco) | Justin Turner Overdrive | 61 |
| 5. | Fulmer, Michael | Baffin Island Tiger Seals | 60 | |
| 6. | Kershaw, Clayton | (filler) | Tampa Bay Rays | 60 |
| 7. | Blue, Vida | (WorcWarr) | Worcester Warriors | 60 |
| 8. | Millwood, Kevin | (ChadB) | Marianao Tigers | 58 |
| 9. | Young, Irv | Q City Quake | 58 | |
| 10. | Brown, Kevin | (mr_mojo_risin) | Reykjavik Rooks | 58 |
| 11. | Loaiza, Esteban | Ohio State Buckeyes | 58 | |
| 12. | Reynolds, Shane | (cjay1444) | Minneapolis Millers | 58 |
| 13. | DeSclafani, Anthony | (Sidneypointers) | Sidney K9s | 57 |
| 14. | Chesbro, Jack | (filler) | Provo Vikings | 57 |
| 15. | Cuellar, Mike | Bartonsville Pumas | 57 | |
| 16. | Gooden, Dwight | (MLBnation) | Ford Mustangs | 57 |
| 17. | Viola, Frank | (filler) | camden town bankrobbers | 57 |
| 18. | Hendricks, Kyle | (donnpall) | Las Vegas Sun Sox | 57 |
| 19. | Kershaw, Clayton | (donnpall) | Las Vegas Sun Sox | 57 |
| 20. | Greinke, Zack | (MLBnation) | New Jersey Jackals | 57 |
| 21. | Gibson, Bob | Washoe County Chiefs | 57 | |
| 22. | Morris, Jack | (filler) | Bartonsville Pumas | 57 |
| 23. | Hudson, Daniel | (mattholland1975) | Pembroke Pigs | 57 |
| 24. | Viola, Frank | (mduse) | Taoyuan Hainigen | 57 |
| 25. | Colon, Bartolo | (filler) | Malvern Chargers | 57 |
| 26. | Blue, Vida | (iamcota) | Knapps Station Knee Slappers | 57 |
| 27. | Hunter, Catfish | (bostontex24) | Boston Celtics | 57 |
| 28. | Gibson, Bob | Seattle Grandmasters | 57 | |
| 29. | Weaver, Jered | (devil12218) | DeGrom Nom Nom | 56 |
| 30. | Maddux, Greg | (filler) | Chicago Sting | 56 |
| 31. | Blyleven, Bert | (dynasty) | PHILADELPHIA EAGLES | 56 |
| 32. | Higuera, Teddy | (doughboys) | Caldwell BOMBERS | 56 |
| 33. | Schilling, Curt | (Vernorama) | Butte Force | 56 |
| 34. | Hunter, Catfish | (Vernorama) | Butte Force | 56 |
| 35. | Montas, Frankie | (SwampDogg) | BooYee City Lightning | 56 |
| 36. | Young, Irv | (markphip) | Boston Red Sox | 56 |
| 37. | Pettitte, Andy | (ressien) | Washington Huskies | 56 |
| 38. | Kershaw, Clayton | (Sportsguru2020) | Santee Spartans | 56 |
| 39. | Bunker, Wally | (cshaffer) | Florida Panthers | 56 |
| 40. | James, Josh | (dynasty) | Oklahoma Monarchs | 56 |
| 41. | Strasburg, Stephen | (LorenzoCain) | Tyrone Shoelaces | 56 |
| 42. | Smoltz, John | Albuquerque Blue Crystals | 56 | |
| 43. | Perez, Odalis | (SwampDogg) | Moon River SwampDogg | 56 |
| 44. | Greinke, Zack | (coachmcs) | Red Land Pates | 56 |
| 45. | White, Doc | (mckarcher) | Black Mesa Xens | 56 |
| 46. | Quintana, Jose | Miami Cats | 56 | |
| 47. | Johnson, Randy | (sytsmab) | Trong Thu | 56 |
| 48. | Sutton, Don | (rreebe916) | Guismaras Matamis Mango | 56 |
| 49. | Hahn, Noodles | (Gaberino) | Sierra Nevada Quicksilvers | 56 |
| 50. | Blanton, Joe | (filler) | Gulf Coast Cavemen | 55 |