Favorite Teams leagues are not included in Single-Season records. Records only remain for 10 seasons.

Single-Season Leaders (ERA)

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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.	Britton, Zach	(skieff)	Hustons Mill YardHawks	0.00
2.	Balfour, Grant	(tw_gk)	Akron Wranglers	0.00
3.	Robertson, David		Rockin' Robins	0.00
4.	Boxberger, Brad	(Myunclepunk)	Chicago Feens	0.16
5.	Madson, Ryan	(Jason1216)	Ashtabula Warriors	0.16
6.	Roebuck, Ed	(jpcortez)	Mid-Century Moderns	0.16
7.	Saito, Takashi		Jakarta Colts	0.16
8.	Putz, J.J.	(kingstreet)	Singapore Slingers	0.17
9.	Jansen, Kenley	(noodles66)	Stark City Iron Men	0.18
10.	Boxberger, Brad	(thunderstruck)	Cape Cod MARINERS	0.20
11.	Carman, Don		Ottawa Otters	0.20
12.	Adams, Mike	(Ruthbonds)	Chicago Black Sox	0.21
13.	Broxton, Jonathan	(strutter)	Baseball Furies	0.23
14.	Brewer, Jim	(mickey7)	Rebel Smile	0.23
15.	Howell, Jay	(Kopasetic)	Georgia Grasshoppers	0.25
16.	Boxberger, Brad	(dunroche)	Nevada Racin' Rebels	0.25
17.	Street, Huston		TU CHHS 203	0.25
18.	Blanton, Joe	(Joemcg)	OC Hornets	0.26
19.	Street, Huston	(tgbbirch)	Quincy Frogs	0.26
20.	Wilhelm, Hoyt		Havana Cienfuegos	0.27
21.	Adams, Mike	(Blaster)	Humbolt 💰⚾	0.28
22.	Pfiester, Jack	(PARATROOPER22)	DALLAS DRIFTERS	0.28
23.	Marmol, Carlos	(richgibson)	Camino Corto COMMUNEROS	0.28
24.	Wagner, Billy	(babyave1)	North Bridgton Fins	0.28
25.	Kimbrel, Craig	(Dollarhotdog)	Muddville Nine	0.28
26.	Gossage, Rich	(dunroche)	Inland Empire 66ers	0.28
27.	Putz, J.J.	(tbone34)	Atlanta Brick Squad	0.29
28.	Smith, Dave	(dbutts)	Burlington Bees	0.29
29.	Neshek, Pat	(joemcg)	OC Banditos	0.32
30.	Miller, Andrew	(UNHBombers)	Stowe Bombers	0.33
31.	Vizcaino, Arodys	(Raidergreg72)	Saint Charles RiverCats	0.34
32.	LaRoche, Dave		Seattle Pilots	0.34
33.	McHugh, Collin	(Barefootstomp)	Appalachian Moonshiners	0.36
34.	Kensing, Logan	(Cdubb7)	Picksburgh Pirates	0.36
35.	Hader, Josh	(chapman)	Jokes On You Fighting Clowns	0.36
36.	Drabowsky, Moe	(stengel28)	Williams Grove Racers	0.36
37.	Miller, Stu	(andyyoung)	New York Knights	0.37
38.	Jansen, Kenley	(Zigwiggity)	Sacramento River Cats	0.37
39.	Hoffman, Trevor		TU CHHS 135	0.38
40.	Gagne, Eric	(Blaster)	Gas House Gorillas	0.37
41.	Saito, Takashi	(super)	Fargo Freeze	0.37
42.	Edwards, Carl	(BigRedMachine90)	Beating My Snake	0.38
43.	Chapman, Aroldis	(ColinBoucher)	Alpha Bet City 🔤's	0.39
44.	Street, Huston	(Rfb60609)	Shady Maple Smorgasborders	0.38
45.	Jansen, Kenley		NORTHERN LIGHTS	0.39
46.	Balfour, Grant		Astrophysicists Vs NUKE WAR	0.39
47.	Allen, Cody	(htennis)	John Gibson For the Vezina	0.39
48.	Adams, Mike	(me)	Yocumtown Yaks	0.39
49.	Gossage, Rich	(baseball4ever)	Watergate Burglars	0.39
50.	Jansen, Kenley	(ColinBoucher)	DoppleHead BobbleGangers	0.39