Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
Single-Season Leaders (OPS)
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. | Bonds, Barry | (JPThaRipper) | Galveston Gators | 1.355 |
| 2. | Schneider, Davis | (filler8) | Oakmont Yankees | 1.338 |
| 3. | Bonds, Barry | (Trulaia) | Revenge of Samson | 1.322 |
| 4. | Carpenter, Matt | NEW YORK METRO | 1.301 | |
| 5. | Carpenter, Matt | East Texas Loggers | 1.295 | |
| 6. | Bonds, Barry | (Trilling) | LA Tanks | 1.292 |
| 7. | Carpenter, Matt | (doughboys) | Vegas Knights | 1.292 |
| 8. | Bonds, Barry | (WorcWarr) | Worcester Warriors | 1.291 |
| 9. | Carpenter, Matt | (mgm7) | Detroit Dumpsters 2 | 1.291 |
| 10. | Carpenter, Matt | (bwcw40) | Royal Hill Lions | 1.288 |
| 11. | McGwire, Mark | (rreebe916) | Dixie Boy Happy Toyz | 1.284 |
| 12. | Bonds, Barry | (jcvlach) | Chicago Dawgz | 1.280 |
| 13. | Bonds, Barry | (BAR23) | Bloomington Blue Bombers | 1.279 |
| 14. | Bonds, Barry | (Mortamar1966) | Kansas City Monarchs | 1.278 |
| 15. | Schneider, Davis | (ColinBoucher) | Relentlessly Competent | 1.275 |
| 16. | Carpenter, Matt | (filler) | Ramsey County Rampage | 1.268 |
| 17. | Carpenter, Matt | (filler) | Ramsey County Rampage | 1.268 |
| 18. | Carpenter, Matt | (filler) | Ramsey County Rampage | 1.268 |
| 19. | Carpenter, Matt | (filler) | Ramsey County Rampage | 1.268 |
| 20. | Carpenter, Matt | (filler) | Ramsey County Rampage | 1.268 |
| 21. | Carpenter, Matt | (filler) | Ramsey County Rampage | 1.268 |
| 22. | Bonds, Barry | (Saints69) | Detroit Red Devil’s | 1.265 |
| 23. | Bonds, Barry | (nycubsfan) | NYC Cubbies | 1.262 |
| 24. | Bonds, Barry | (Trulaia) | Stockton Stars | 1.261 |
| 25. | Carpenter, Matt | (ColinBoucher) | ‘Sota BobbleVikes | 1.261 |
| 26. | Carpenter, Matt | (jim2miller) | Elkhart Blue Blazers | 1.261 |
| 27. | Bonds, Barry | (walle-1) | Oklahoma Wolves | 1.260 |
| 28. | Carpenter, Matt | (ssrice123) | Cleburne Railroaders | 1.257 |
| 29. | Hoskins, Rhys | (lasershow) | Iowa Cornhuskers | 1.255 |
| 30. | Carpenter, Matt | (ColinBoucher) | Rancho Cucamonga Quakes | 1.254 |
| 31. | Bonds, Barry | (Trulaia) | Stockton Stars | 1.253 |
| 32. | Schneider, Davis | (ColinBoucher) | DoppleHead BobbleGängers | 1.251 |
| 33. | Carpenter, Matt | Oakmont Yankees | 1.251 | |
| 34. | Schneider, Davis | (GpaDawg) | Boston Bees | 1.249 |
| 35. | Carpenter, Matt | (ISU_Doubledown) | South Park Cows | 1.249 |
| 36. | Carpenter, Matt | (Doughboys) | California Bears | 1.248 |
| 37. | Carpenter, Matt | (BAR23) | Piggsburgh PigSnouts | 1.246 |
| 38. | Bonds, Barry | (Trulaia) | Los Angeles 24ers | 1.245 |
| 39. | Bonds, Barry | (andyyoung) | Hollywood Stars | 1.243 |
| 40. | Carpenter, Matt | (ColinBoucher) | Bishop Sycamore H.S. Vagabonds | 1.244 |
| 41. | Bonds, Barry | (WorcWarr) | Worcester Warriors | 1.242 |
| 42. | McGwire, Mark | (rreebe916) | Scranton Stranglers | 1.240 |
| 43. | Bonds, Barry | (rawlscl78) | Gainesville AGITGators | 1.240 |
| 44. | Carpenter, Matt | (iceman18) | New York Metro | 1.239 |
| 45. | Bonds, Barry | (JPThaRipper) | Galveston Gators | 1.238 |
| 46. | Carpenter, Matt | (ColinBoucher) | Lala Oopsies | 1.238 |
| 47. | Schneider, Davis | (ColinBoucher) | Thago Mizers | 1.238 |
| 48. | Bonds, Barry | (Trulaia) | Revenge of Samson | 1.237 |
| 49. | Trout, Mike | East Texas Loggers | 1.237 | |
| 50. | Carpenter, Matt | LANDON LIONS | 1.237 |
