2011 MLB Winning Percentage Leaders

Ian Kennedy led all of MLB in winning percentage in 2011 with .840, 12 points ahead of Justin Verlander (.828). It stands 98th among all single seasons in MLB history.

Showing pitchers with at least 162.0 innings — the standard 1.0 inning per team game. Show all players

Led all of MLB in 2011 Ian Kennedy Arizona Diamondbacks

.840 Winning Percentage .012 clear of Justin Verlander

Showing Winning Percentage and the stats that give it context Full stat line

#	Player	Team	W-L%	W	L	ERA	IP
1	Ian Kennedy	ARI	.840	21	4	2.88	222.0
2	Justin Verlander	DET	.828	24	5	2.40	251.0
3	Clayton Kershaw	LAN	.808	21	5	2.28	233.1
4	Ivan Nova	NYA	.800	16	4	3.70	165.1
5	Derek Holland	TEX	.762	16	5	3.95	198.0
6	Roy Halladay	PHI	.760	19	6	2.35	233.2
7	Zack Greinke	MIL	.727	16	6	3.83	171.2
8	CC Sabathia	NYA	.704	19	8	3.00	237.1
9	C. J. Wilson	TEX	.696	16	7	2.94	223.1
10	Jered Weaver	LAA	.692	18	8	2.41	235.2
11	Cliff Lee	PHI	.680	17	8	2.40	232.2
12	Aaron Harang	SDN	.667	14	7	3.64	170.2
13	Shaun Marcum	MIL	.650	13	7	3.54	200.2
14	Jaime Garcia	SLN	.650	13	7	3.56	194.2
15	Josh Beckett	BOS	.650	13	7	2.89	193.0
16	Ryan Vogelsong	SFN	.650	13	7	2.71	179.2
17	Kyle Lohse	SLN	.636	14	8	3.39	188.1
18	Josh Tomlin	CLE	.632	12	7	4.25	165.1
19	Yovani Gallardo	MIL	.630	17	10	3.52	207.1
20	Max Scherzer	DET	.625	15	9	4.43	195.0
21	Jon Lester	BOS	.625	15	9	3.47	191.2
22	Alexi Ogando	TEX	.619	13	8	3.51	169.0
23	Dan Haren	LAA	.615	16	10	3.17	238.1
24	Tim Hudson	ATL	.615	16	10	3.22	215.0
25	Cole Hamels	PHI	.609	14	9	2.79	216.0
26	Matt Harrison	TEX	.609	14	9	3.39	185.2
27	Rick Porcello	DET	.609	14	9	4.75	182.0
28	Mark Buehrle	CHA	.591	13	9	3.59	205.1
29	Colby Lewis	TEX	.583	14	10	4.40	200.1
30	Ricky Romero	TOR	.577	15	11	2.92	225.0
31	Daniel Hudson	ARI	.571	16	12	3.49	222.0
32	James Shields	TBA	.571	16	12	2.82	249.1
33	Jake Westbrook	SLN	.571	12	9	4.66	183.1
34	Gio Gonzalez	OAK	.571	16	12	3.12	202.0
35	Edwin Jackson	CHA +1	.571	12	9	3.79	199.2
36	Mike Leake	CIN	.571	12	9	3.86	167.2
37	Randy Wolf	MIL	.565	13	10	3.69	212.1
38	Jeremy Hellickson	TBA	.565	13	10	2.95	189.0
39	Chris Carpenter	SLN	.550	11	9	3.45	237.1
40	Justin Masterson	CLE	.545	12	10	3.21	216.0
41	Javier Vazquez	FLO	.542	13	11	3.69	192.2
42	Wade Davis	TBA	.524	11	10	4.45	184.0
43	Matt Cain	SFN	.522	12	11	2.88	221.2
44	Madison Bumgarner	SFN	.500	13	13	3.21	204.2
45	A. J. Burnett	NYA	.500	11	11	5.15	190.1
46	Felix Hernandez	SEA	.500	14	14	3.47	233.2
47	Chad Billingsley	LAN	.500	11	11	4.21	188.0
48	Matt Garza	CHN	.500	10	10	3.32	198.0
49	Luke Hochevar	KCA	.500	11	11	4.68	198.0
50	James McDonald	PIT	.500	9	9	4.21	171.0

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