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 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.	Feliz, Neftali	(dunroche)	Washington Angry Ducks	1.7
2.	McHugh, Collin		Appalachian Moonshiners	2.2
3.	Edwards, Carl	(dynasty)	New York Mets	2.3
4.	Street, Huston	(partin0701)	Tuvalu Copras	2.3
5.	Marmol, Carlos		Portland Beavers	2.3
6.	Hader, Josh		Oshkosh SMC	2.4
7.	Papelbon, Jonathan	(nycubsfan)	San Antonio Texans	2.4
8.	Saucier, Kevin	(garveyismypadre)	Istanbul TurkishDelight🇹🇷	2.4
9.	Boxberger, Brad	(sytsmab)	Asbury Park LUMPEN PROLS	2.4
10.	Kimbrel, Craig	(rfb60609)	Wormsleyburg Warriors	2.4
11.	Kimbrel, Craig		Pope Pius Pals	2.5
12.	Valverde, Jose		Hogan’s Heroes	2.5
13.	Gagne, Eric		Scottsdale Suns	2.6
14.	Hader, Josh	(super)	Fargo Freeze	2.6
15.	Guthrie, Mark	(DaveH)	Ladson Cougars	2.6
16.	Wagner, Billy	(tbone34)	Texas Tomahawks	2.6
17.	Papelbon, Jonathan		Boston Sox	2.6
18.	Feliz, Neftali	(dunroche)	Washington Angry Ducks	2.6
19.	Marmol, Carlos	(revh)	Beuhlah Land Bunyans	2.6
20.	Adams, Mike	(MikeDrop0221)	Carolina Mad Ducks	2.6
21.	Kuo, Hong-Chih	(dunroche)	Nashville Sounds	2.6
22.	Street, Huston	(dunroche)	South Texas Killer Bees	2.7
23.	Wagner, Billy	(nycubsfan)	Goshen Gorillas	2.7
24.	Chapman, Aroldis	(Sugarland)	Chicago Colts	2.6
25.	Soriano, Rafael	(sheikyerboudi)	Hawaii Five 0's	2.7
26.	Nen, Robb		Pope Pius Pals	2.7
27.	Percival, Troy	(michelb3514)	Iowa Corn Pickers	2.6
28.	Adams, Mike		Singapore Slingers	2.7
29.	Valverde, Jose	(denniskitts1313)	Badboy Brawlers	2.7
30.	Segui, Diego	(bigjoe52)	Brooklyn Superbas	2.7
31.	Dotel, Octavio	(ericsk0122)	Atchafalaya Mud Bugs	2.7
32.	Balfour, Grant		Way Down Yonder Chatahoochies	2.7
33.	Wagner, Billy	(Sidneypointers)	Murdock Miners	2.7
34.	Doolittle, Sean	(Ref)	Delaware Gators	2.7
35.	Kimbrel, Craig	(gt049)	Fredricksburg Feds	2.7
36.	Doolittle, Sean	(jamin)	Chester Springs Menjai	2.7
37.	Feliz, Neftali	(richgibson)	Kazoo SdS	2.7
38.	Hader, Josh	(chaaad)	New York Cubans	2.7
39.	Feliz, Neftali	(Sdwriter)	South Dakota Storm	2.8
40.	Soriano, Rafael	(michelb3514)	Iowa Corn Pickers	2.8
41.	Balfour, Grant		Chenango Wolves	2.8
42.	Lidge, Brad	(Brooker)	Bay Area Bulldogs	2.8
43.	Kimbrel, Craig	(djeter2)	Tijuana Chupacabras⚾	2.8
44.	Nen, Robb	(CornLiquor)	Milwaukee Beers	2.8
45.	Miller, Andrew	(filler)	Alinor High elves	2.8
46.	Balfour, Grant	(michelb3514)	Iowa Corn Pickers	2.8
47.	Betances, Dellin	(chaaad)	New York Black Yankees	2.8
48.	Treinen, Blake	(thehundredsb)	Toledo Mighty Hens	2.8
49.	Kimbrel, Craig	(Entress724)	Ny Mets	2.8
50.	Diaz, Edwin	(gt049)	St. Louis Venom	2.8