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 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.	Jansen, Kenley	(Artinshki)	Minnesota Charlie Browns	0.52
2.	Chapman, Aroldis	(dunroche)	Washington Racin' Rebels	0.54
3.	Saito, Takashi	(vonveezil)	Las Vegas Bosses	0.55
4.	Marmol, Carlos	(Caphowdy504)	Springfield Troy McClures	0.57
5.	Wagner, Billy	(WorcWarr)	Worcester Warriors	0.57
6.	Chapman, Aroldis	(nycubsfan)	Htown Skeeters	0.57
7.	Rivera, Mariano	(MikeDrop0221)	New York Pandas	0.57
8.	Adams, Mike	(dynasty)	Bucheon Angels	0.57
9.	Rivera, Mariano	(dynasty8)	Boston Beeees	0.58
10.	Hader, Josh	(ThEiRoNhOrSe04)	Hoboken Zephyrs	0.58
11.	Soriano, Rafael	(rfb60609)	Camp Hill Suburbanites	0.58
12.	Uehara, Koji	(Artinshki)	Minnesota Charlie Browns	0.59
13.	Adams, Mike	(nycubsfan)	Chicago Cubs	0.59
14.	Jackson, Mike	(nmiller4)	Cincinnati Reds	0.60
15.	Gagne, Eric	(bdavids28)	Silver Jet	0.60
16.	Hall, Dick	(Ironman)	Bedford Falls Sled Dogs	0.60
17.	Adams, Mike		Detroit Red Devil’s	0.60
18.	Hoffman, Jeff	(muntschuss)	New York Metropolitans	0.60
19.	Kimbrel, Craig	(crapgame)	Clear Water	0.60
20.	Kimbrel, Craig	(richgibson)	Parma FROGGIES	0.61
21.	Rivera, Mariano	(cjay1444)	Pensacola Flyers	0.61
22.	Henke, Tom	(gibblets1973)	Torbay Tides	0.61
23.	Doolittle, Sean	(MikeDrop0221)	Raleigh Jays	0.61
24.	Smoltz, John	(Jerrystakhouse17)	Boston Bees	0.61
25.	Adams, Mike	(dynasty)	Memphis Dragons	0.61
26.	Adams, Mike	(bostontex24)	Boston Commons	0.62
27.	Wagner, Billy	(govols1975)	Tottenville Pirates	0.62
28.	Gagne, Eric	(bdavids28)	Greasy Jungle	0.62
29.	Gagne, Eric	(BAR23)	Boston Red Bulls	0.62
30.	Kimbrel, Craig	(paskesm)	Grape Apes	0.62
31.	Eckersley, Dennis	(rreebe916)	Smokehouse Smokies	0.62
32.	Hader, Josh	(Snowman33)	Minnesota Snowmen	0.62
33.	Gagne, Eric	(infmusxp)	Dot Com	0.62
34.	Graveman, Kendall	(Nuroc)	Raptora POC Alypse	0.62
35.	McGraw, Tug	(steve2745)	Liverpool Merseybeats	0.63
36.	Adams, Mike	(gibblets1973)	Mount Pearl Marauders	0.63
37.	Balfour, Grant		Dallas Bears	0.63
38.	Doolittle, Sean	(maverck11)	West Park Panthers	0.63
39.	Uehara, Koji	(ranger)	DEER PARK DEER	0.63
40.	Devine, Joey	(bdavids28)	Escape From The Bronx	0.63
41.	Giles, Ken	(tgbsbl1967)	Minot Minotaurs	0.63
42.	Uehara, Koji	(mattholland1975)	Homestead Smokestacks	0.63
43.	Sewald, Paul		Anaheim Angels	0.63
44.	Street, Huston	(richp)	Wandering Wolverines	0.63
45.	Jackson, Mike	(Artinshki)	Minnesota Charlie Browns	0.63
46.	Adams, Mike	(nycubsfan)	JACKSON HEIGHTS SHARKS	0.63
47.	Wilhelm, Hoyt	(liddlefeat)	Raritan Retrievers	0.63
48.	Chapman, Aroldis	(chaaad)	New York Bluebirds	0.64
49.	Doolittle, Sean	(marknym)	Chattanooga Chimichangas	0.64
50.	Eckersley, Dennis	(bnewman58)	New Jack City Miscreants	0.64