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

Single-Season Leaders (WHIP)

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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.	Jansen, Kenley	(gibblets1973)	C.B.S. Sailors	0.32
2.	Jansen, Kenley	(roguerouge)	New York Umbrella Corp	0.33
3.	Osuna, Roberto	(bippapamike)	West Virginia Wimps	0.33
4.	Jansen, Kenley	(Bluesig)	Pangantucan Pirates	0.34
5.	Miller, Andrew	(Trulaia)	Blythe Broncos	0.34
6.	Jansen, Kenley	(vaughnk003)	Wilmington Mohawks	0.34
7.	Miller, Andrew	(Zeegic)	Oslo Lutefiskers	0.35
8.	Jansen, Kenley	(PresidentCam)	Robertsville Rangers	0.35
9.	Jansen, Kenley	(roguerouge)	Gary-Southshore Railcats	0.36
10.	Jansen, Kenley	(Zigwiggity)	Scobey Sharks	0.37
11.	Robertson, David	(bobtoo999)	Destin Snowbirds	0.38
12.	Uehara, Koji	(iamhamby)	H-Town Colt 45s	0.38
13.	Miller, Andrew	(ColinBoucher)	Alpha Bet City 🔤's	0.38
14.	Burns, Todd	(Mranastasia)	Cox Tuggers	0.39
15.	Jansen, Kenley	(Theone)	Washington Wolves	0.39
16.	Allen, Cody	(AceBuehler)	Last Year's Legends	0.39
17.	Jones, Nate	(JohnL13)	Los Angeles Sharks	0.39
18.	Jansen, Kenley	(habsco)	Cincinnati Reds	0.39
19.	Wilhelm, Hoyt	(Doolio)	Havana Cienfuegos	0.39
20.	Miller, Andrew	(doittoitlars)	Waco Desperado	0.39
21.	Miller, Andrew	(roguerouge)	Gary-Southshore Railcats	0.40
22.	Miller, Andrew		Tampa Arsenal	0.40
23.	Britton, Zach	(marnez)	Sussex Sharks	0.41
24.	Feliz, Neftali	(sgt714)	Boston Americans III	0.41
25.	Chapman, Aroldis	(Bliss22)	Minneapolis Millers	0.41
26.	Jansen, Kenley	(petowski)	Aliquippa Stars	0.42
27.	Miller, Andrew	(mattholland1975)	Kingsville Knights	0.42
28.	Miller, Andrew	(mmeler)	Burg Bonzos	0.42
29.	Devenski, Chris	(semcmillen)	Mister Spock	0.42
30.	Jansen, Kenley	(Jennison)	Twin Cities Twins	0.42
31.	Miller, Andrew	(JohnL13)	Los Angeles Sharks	0.42
32.	Betancourt, Rafael	(oasis)	Moose Jaw Claws	0.42
33.	Chapman, Aroldis	(jericho2u)	Stark City Iron Men	0.43
34.	Miller, Andrew	(screamNchicken)	Boston Bees	0.43
35.	Miller, Andrew	(iamhamby)	H-Town Colt 45s	0.43
36.	Betances, Dellin	(sanfranman491)	Rhode Island Makos	0.43
37.	Britton, Zach	(skieff)	Hustons Mill YardHawks	0.43
38.	Gossage, Rich	(jpcortez)	Celluloid Heroes	0.43
39.	Hand, Brad	(blackfire83)	Bakersfield Guardians	0.44
40.	Miller, Andrew		Tyro Tigers	0.44
41.	Rivera, Mariano	(Consigliere33)	Chicago Cubs	0.44
42.	Kimbrel, Craig	(ThePort24)	Hampton Roads Neptunes	0.44
43.	Jansen, Kenley		Albany Blur 1-607	0.44
44.	Davis, Wade	(Trulaia)	Scranton Ducks	0.44
45.	Kimbrel, Craig	(Trulaia)	city players	0.44
46.	Thornburg, Tyler	(thotbusta420)	Boston Pops	0.44
47.	Miller, Andrew		Gorilla Harambe	0.44
48.	Jansen, Kenley	(roguerouge)	caribe piratas	0.44
49.	Kelley, Shawn	(jbenson)	Iowa Southpaws	0.44
50.	Thornburg, Tyler		Portland Penguins	0.44