Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
Single-Season Leaders (Hit Batters)
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. | Cole, Gerrit | (zman11) | James Island Jackwagons | 21 |
| 2. | Mullane, Tony | (PalinJames) | San Diego WOBS | 20 |
| 3. | Nola, Aaron | Glen Allen Gladiators | 20 | |
| 4. | Radbourn, Charley | (Shpennymons) | Wahoo Howlers | 20 |
| 5. | Quantrill, Cal | (dhuffman72) | Miami Cats | 20 |
| 6. | Seward, Ed | (sheikyerboudi) | Worcester Ruby Legs | 19 |
| 7. | Keuchel, Dallas | West Tech Carpenters | 19 | |
| 8. | Foreman, Frank | Brooklyn Bums | 19 | |
| 9. | Boyle, Henry | Malaybalay Automatons | 19 | |
| 10. | Reulbach, Ed | (disturbed) | Boston Beaneaters | 19 |
| 11. | Corcoran, Larry | (filler) | Ziegfeld Follies | 19 |
| 12. | Johnson, Randy | (Kadoshe) | Virginia Victory | 19 |
| 13. | Wood, Kerry | (Trulaia) | Stockton Stars | 19 |
| 14. | Lamet, Dinelson | (jeffjr) | Brooklyn Knights | 19 |
| 15. | Sparks, Tully | Rye Whiskey | 19 | |
| 16. | Young, Cy | (sheikyerboudi) | Walking Dead Ballers | 19 |
| 17. | Perez, Odalis | (shelley71) | BB Buddies | 19 |
| 18. | Mikolas, Miles | (filler) | Washington Werewolves | 18 |
| 19. | Hughes, Mickey | (filler) | Miami Cats | 18 |
| 20. | Seaver, Tom | (dynasty) | Rockford Rockers | 18 |
| 21. | McGinnity, Joe | (hamburglar) | Munchin' Muff-ins | 18 |
| 22. | Severino, Luis | (Rosilver) | Freehold Yankees | 18 |
| 23. | Chacin, Jhoulys | (selwyn42) | Waipahu Emeralds | 18 |
| 24. | Greinke, Zack | (davevaldes152) | Galveston BULLFROGS | 18 |
| 25. | Walsh, Ed | (Fungoking) | New York Knights | 18 |
| 26. | Darvish, Yu | Chicago Inferno | 18 | |
| 27. | Arrieta, Jake | (Llorac) | Springfield Knights | 18 |
| 28. | Cueto, Johnny | (stonemob) | Vermont Catamounts | 18 |
| 29. | Brown, Mordecai | (sheikyerboudi) | Worcester Ruby Legs | 18 |
| 30. | Lincecum, Tim | (plpl512) | Roman Empire Gladiators | 18 |
| 31. | deGrom, Jacob | (coachmcs) | Iowa Fighting Pigs | 18 |
| 32. | Bauer, Trevor | (MJR) | MINNESOTA HUSKIES | 18 |
| 33. | Young, Cy | (Eephus) | Touch Down | 18 |
| 34. | Walsh, Ed | (Shpennymons) | Big Stans | 18 |
| 35. | Alexander, Pete | Jackson 🐕🦺 Dead Dogs | 18 | |
| 36. | Wells, David | (Jericho2u) | Honolulu Happy Toyz | 18 |
| 37. | Pelty, Barney | (Whg383) | Sioux City Natives | 17 |
| 38. | McGinnity, Joe | (hootjohnson) | Chicago Whales | 17 |
| 39. | Titcomb, Cannonball | (Eephus) | Touch Down | 17 |
| 40. | Conway, Pete | (broles) | Baffin Island Huskies | 17 |
| 41. | Johnson, Randy | (Schvitz) | ST Louis Hot Sun | 17 |
| 42. | Weaver, Luke | (Acorn) | Kansas City T-Bones | 17 |
| 43. | Hecker, Guy | (gibblets1973) | Grand Falls Grey Geese | 17 |
| 44. | Tanaka, Masahiro | (Bluesig) | Mañapla Thunder Hawks | 17 |
| 45. | Hudson, Tim | (sgt714) | Boston Red Soc | 17 |
| 46. | Plesac, Zach | (YS) | York Spartans2 | 17 |
| 47. | Bieber, Shane | Horsehides Yellowjackets | 17 | |
| 48. | Bieber, Shane | (joemcg) | OC Cane Toads | 17 |
| 49. | Martinez, Ramon | (lenhard12) | Kannapolis Canon Ballers | 17 |
| 50. | Bieber, Shane | (PalinJames) | Erie Smokey Tops | 17 |