Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.
Single-Season Leaders (Quality Starts)
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. | deGrom, Jacob | (coachmcs) | Vancouver Cardinals | 0 |
| 2. | deGrom, Jacob | (filler) | Louisiana BLUETOOTH | 0 |
| 3. | deGrom, Jacob | (michelb3514) | Iowa Corn Pickers | 0 |
| 4. | Koufax, Sandy | (nycubsfan) | Chicago Cubs | 0 |
| 5. | DeLeon, Jose | Dunder Mifflin Paper Products⚾️ | 0 | |
| 6. | Ryan, Nolan | (Slothmonkey) | TT Tigers | 0 |
| 7. | Scherzer, Max | (REVEJB) | Ballistopore Floaters | 0 |
| 8. | deGrom, Jacob | (paranoid) | Las Vegas Dust Devils | 0 |
| 9. | deGrom, Jacob | (Don55) | PP Piggies | 0 |
| 10. | Richard, J.R. | (Caphowdy504) | New Orleans Politicians | 0 |
| 11. | deGrom, Jacob | (theo_smith) | Milwaukee Mustangs | 0 |
| 12. | DeLeon, Jose | (Pic6ix07) | Baltimore Orioles | 0 |
| 13. | deGrom, Jacob | (rreebe916) | Farting Ducks | 0 |
| 14. | deGrom, Jacob | (Artinshki) | Base Ball Classics | 0 |
| 15. | deGrom, Jacob | (gibblets1973) | Brooklyn Bulldogs | 0 |
| 16. | Johnson, Walter | (Bunchastiffs) | Las Vegas Gamblers | 0 |
| 17. | Guidry, Ron | (wduncan) | Panama City Sardines | 0 |
| 18. | Nomo, Hideo | (Rosilver) | Pirate Fortress Archers of Love | 0 |
| 19. | Scherzer, Max | (glansgruber) | North Haverbrook Monorails | 0 |
| 20. | Scherzer, Max | (BlueJays2) | New York Metro | 0 |
| 21. | Ryan, Nolan | (gpsman) | San Diego Suns | 0 |
| 22. | Seaver, Tom | (sheikyerboudi) | The Good The Bat And the Ugly | 0 |
| 23. | Richard, J.R. | (trynottosuck) | Oregon Corked Bats | 0 |
| 24. | Richard, J.R. | (LDJS1947) | ST. LOUIS BLUES | 0 |
| 25. | Martinez, Pedro | (tgbsbl1967) | Newberry Hitmen | 0 |
| 26. | Martinez, Pedro | (kurnal_sanders4) | Chenango Wolves | 0 |
| 27. | deGrom, Jacob | (paranoid) | Las Vegas Scorpions | 0 |
| 28. | deGrom, Jacob | (filler) | New York Toughs🇺🇦 | 0 |
| 29. | deGrom, Jacob | (paranoid) | Las Vegas Lasers | 0 |
| 30. | deGrom, Jacob | (hayzess) | Gilchrist Yellow Jackets | 0 |
| 31. | deGrom, Jacob | (richgibson) | Highlander Folk CTr ORGanIZERS | 0 |
| 32. | Maddux, Greg | (Texashorns2023) | Liberty Banditos | 0 |
| 33. | deGrom, Jacob | (MikenLaw2017) | South Dakota Hitmen | 0 |
| 34. | deGrom, Jacob | (paranoid) | Las Vegas Scorpions | 0 |
| 35. | Ryan, Nolan | (Troysoren) | Mellonville Hosers | 0 |
| 36. | Richard, J.R. | (gr33nappleboy) | Chittenango Diamonds | 0 |
| 37. | Morgan, Mike | (aaabob) | Windsor White's Other I's | 0 |
| 38. | Righetti, Dave | (j-underground) | New Jersey Yellowjackets | 0 |
| 39. | deGrom, Jacob | (MikeDrop0221) | Coronado Cannon Fodder | 0 |
| 40. | deGrom, Jacob | (chaaad) | Columbia Lions | 0 |
| 41. | Fernandez, Jose | (tjm) | First To Third | 0 |
| 42. | deGrom, Jacob | (babyave1) | Victory Lakes | 0 |
| 43. | deGrom, Jacob | (mattholland1975) | Ordway Owls | 0 |
| 44. | Arrieta, Jake | (Tgbsbl1967) | New Market Mallers | 0 |
| 45. | Ryan, Nolan | (tda81) | The Dangerous Alliance | 0 |
| 46. | Walsh, Ed | (Bravesman) | Shreveport Spiders | 0 |
| 47. | deGrom, Jacob | (cjay1444) | Adirondack Bulls | 0 |
| 48. | deGrom, Jacob | (nycubsfan) | Goshen Gorillas | 0 |
| 49. | deGrom, Jacob | (filler8) | Bullpen Disaster | 0 |
| 50. | deGrom, Jacob | (Wileydog97) | Raleigh Outlaws | 0 |