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

Single-Season Leaders (H/9)

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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 Wins Losses ERA WHIP Innings Hits Allowed HR Allowed Walks (P) Strikeouts (p) Complete Games Saves Blown Saves Shutouts Wild Pitches Hit Batters H/9 BB/9 SO/9

1.	Robertson, David		Destin Snowbirds	1.4
2.	Feliz, Neftali	(sgt714)	Boston Americans III	1.5
3.	Hand, Brad		Bakersfield Guardians	1.9
4.	Jansen, Kenley	(vaughnk003)	Wilmington Mohawks	1.9
5.	Bottalico, Ricky	(jim2miller)	Ohio Bandits	2.1
6.	Valverde, Jose	(plpl512)	Saint-Louis Cards	2.1
7.	Edwards, Carl	(Mickey)	Seattle Outlaws	2.1
8.	Allen, Cody	(AceBuehler)	Last Year's Legends	2.1
9.	McHugh, Collin	(rickmc)	Ridgefield Summerhawks	2.2
10.	Jansen, Kenley	(Bluesig)	Pangantucan Pirates	2.2
11.	Jansen, Kenley	(roguerouge)	New York Umbrella Corp	2.2
12.	Britton, Zach	(skieff)	Hustons Mill YardHawks	2.2
13.	Burns, Todd	(Mranastasia)	Cox Tuggers	2.2
14.	Dibble, Rob	(dbutts)	Burlington Bees	2.3
15.	Thornburg, Tyler	(jriverad)	Portland Penguins	2.3
16.	Jansen, Kenley	(roguerouge)	Gary-Southshore Railcats	2.3
17.	Kimbrel, Craig	(rosshoneycutt)	Bow Tie Village Ball Talk	2.3
18.	Miller, Andrew	(ColinBoucher)	Alpha Bet City 🔤's	2.3
19.	Miller, Andrew	(rickmc)	Ridgefield Summerhawks	2.3
20.	Marmol, Carlos	(plpl512)	Portland Beavers	2.3
21.	Betances, Dellin	(maharacer)	Hopland Hoppers	2.4
22.	Davis, Wade	(Trulaia)	Scranton Ducks	2.3
23.	Hader, Josh	(gate-mouth)	Humbolt 💰⚾	2.4
24.	Jansen, Kenley	(Zigwiggity)	Scobey Sharks	2.4
25.	Allen, Cody	(BigRedMachine90)	Beating My Snake	2.4
26.	Kimbrel, Craig	(Mortamar1966)	Humbleberg Hash Slingers	2.4
27.	Oh, Seung-hwan		Teen Spirit	2.5
28.	Chapman, Aroldis	(rfb60609)	Avondale Vegetarians	2.4
29.	Devenski, Chris	(Kaline6)	Mister Spock	2.5
30.	Radatz, Dick	(baseball4ever)	Golden Age Memories	2.4
31.	Ryan, B.J.	(grantmoyer)	London Lions	2.5
32.	Chapman, Aroldis	(Hfhjrfg)	Buffalo Bees	2.5
33.	Chapman, Aroldis	(andyandy)	Minneapolis Millers	2.5
34.	Rodriguez, Francisco	(Bluesig)	Mañondawan Monarchs	2.5
35.	Britton, Zach	(themsm)	Alamosa Anemones 1-170⚾	2.5
36.	Edwards, Carl	(BigRedMachine90)	Beating My Snake	2.5
37.	Smith, Will	(sillymonkey)	Durham Ducks	2.5
38.	Gagne, Eric		El Paso Smoke	2.5
39.	Kimbrel, Craig		Lancaster Barnstormers	2.5
40.	Barraclough, Kyle	(jrf1717)	Detroit Psychos	2.5
41.	Valverde, Jose	(cubsnation)	San Jose Cougars	2.5
42.	Green, Chad	(DeFile)	Portland Big Hawks	2.5
43.	Miller, Andrew	(Bluesig)	Barañaque Black Ocelots	2.5
44.	Adams, Mike	(tgbbirch)	Mayberry Griffins	2.5
45.	Gagne, Eric	(alrosen)	TU CHHS 144	2.6
46.	Kimbrel, Craig	(Trulaia)	city players	2.6
47.	Miller, Andrew	(tbandit1)	NY Arrows	2.6
48.	Casilla, Santiago	(Gibblets1973)	Paradise Panthers	2.6
49.	Hader, Josh	(super)	Fargo Freeze	2.6
50.	Feliz, Neftali	(Consigliere33)	Chicago Cubs	2.6