Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
Single-Season Leaders (BB/9)
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. | Raymond, Claude | BOSTON ARGYLES | 0.2 | |
| 2. | Decatur, Art | (dynasty) | Louisville Lefties | 0.2 |
| 3. | Bleier, Richard | (max1) | Orleans Firebirds | 0.2 |
| 4. | Cummings, Candy | (beck) | Peoria River Kings | 0.2 |
| 5. | Lynch, Jack | (dbacksstar) | Accentuating Positives | 0.2 |
| 6. | DeLeon, Luis | (filler8) | Montgomery Brewsters | 0.2 |
| 7. | Jones, Doug | (mrfantasy) | Wisco Shepherds | 0.2 |
| 8. | Maltzberger, Gordon | (filler) | Julious Geezers | 0.3 |
| 9. | Swindell, Greg | (tbandit1) | NY Eagles | 0.3 |
| 10. | Betancourt, Rafael | (rfb60609) | Bird In Hand Mennonites | 0.3 |
| 11. | Eckersley, Dennis | (Conniemack) | Chicago American-Giants | 0.3 |
| 12. | Devlin, Jim | (Shpennymons) | Mister B-Bobbin-Bears | 0.3 |
| 13. | Cummings, Candy | (Shpennymons) | Oyster Bay Eagles | 0.3 |
| 14. | Eckersley, Dennis | (billyconn) | Fremont Tigers | 0.3 |
| 15. | Lynch, Jack | (filler) | Ziegfeld Follies | 0.4 |
| 16. | Rivera, Mariano | (griffeyga) | Krazy Knuckleballers | 0.4 |
| 17. | Eckersley, Dennis | (michelb3514) | Iowa Corn Pickers | 0.4 |
| 18. | Eckersley, Dennis | (Consigliere33) | Kansas City Royals | 0.4 |
| 19. | Cummings, Candy | (sheikyerboudi) | Bad News Beers | 0.4 |
| 20. | Saito, Takashi | (DaveH) | Ladson Dodgers | 0.4 |
| 21. | Beck, Rod | (maharacer) | Chicago Blackhawks | 0.4 |
| 22. | Eckersley, Dennis | (brawlers) | Texas Brawlers | 0.4 |
| 23. | Holland, Greg | (ScottCornelius) | London Yardbirds | 0.4 |
| 24. | Perez, Chris | (superheat) | Pittsburgh Black Sox | 0.4 |
| 25. | Spalding, Al | (philtomney) | Cleveland Spiders | 0.4 |
| 26. | Fingers, Rollie | (dcwabdi) | Chicago Blackhawks | 0.5 |
| 27. | Schilling, Curt | (noahis2cul4u) | Chittenango Wizards of Oz | 0.5 |
| 28. | Eckersley, Dennis | (WorcWarr) | Worcester Warriors | 0.5 |
| 29. | Napier, Buddy | (baseball4ever) | Casablanca Gamblers | 0.5 |
| 30. | Hall, Dick | Providence Grays | 0.5 | |
| 31. | Devlin, Jim | (Fungoking) | Uptown Pinstripes | 0.5 |
| 32. | Betancourt, Rafael | (foytster) | Inland Empire Independents | 0.5 |
| 33. | Yates, Kirby | (liddlefeat) | Cleveland Eries | 0.5 |
| 34. | Brosnan, Jim | (tgbsbl1967) | Charlotte Bulldogs | 0.5 |
| 35. | Darwin, Danny | (garret) | Richmond Spiders | 0.5 |
| 36. | Smoltz, John | (WorcWarr) | Worcester Warriors | 0.5 |
| 37. | Powell, Jack | (mdsyverson) | Mississippi Palisades | 0.5 |
| 38. | Shaw, Jeff | (nickachap) | South Dakota Cavemen | 0.5 |
| 39. | Gonzalez, Mike | (plpl512) | Montreal Monarchs | 0.5 |
| 40. | Okajima, Hideki | (gibblets1973) | West End Wolves | 0.5 |
| 41. | Napier, Buddy | (honez) | Jersey City Giants | 0.5 |
| 42. | Eckersley, Dennis | (bostontex24) | B-Town All-Stars | 0.5 |
| 43. | Eckersley, Dennis | (Mitch44) | San Antonio Mustangs | 0.5 |
| 44. | Eckersley, Dennis | (Chunkyschumps) | Forest Lake Rangers | 0.5 |
| 45. | Caruthers, Bob | (filler) | Wallington Yankees | 0.5 |
| 46. | Hughes, Tom | (gbacci) | Providence Steamrollers | 0.5 |
| 47. | Eckersley, Dennis | (vanderj6993) | Steroid City Roids | 0.5 |
| 48. | McGinnis, Jumbo | (czierk) | Hoboken Hobos | 0.5 |
| 49. | Camp, Rick | (ThEiRoNhOrSe04) | Flux Capasitors | 0.5 |
| 50. | Rivera, Mariano | (paranoid) | Las Vegas Lasers | 0.5 |