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Single-Season Team Leaders in Winning Percentage
Show bottom 50

Rank	Team	Winning Percentage	Record
1.	Montreal Expos, 1994	.7716	125-37
2.	Brooklyn Dodgers, 1952	.7597	117-37
3.	Montreal Expos, 1980	.7284	118-44
4.	Boston Red Sox, 1948	.7273	112-42
5.	Chicago Cubs, 1945	.7143	110-44
6.	Chicago White Sox, 1953	.7013	108-46
7.	Minnesota Twins, 1969	.6975	113-49
8.	Cincinnati Reds, 1976	.6975	113-49
9.	Montreal Expos, 1993	.6975	113-49
10.	Atlanta Braves, 1998	.6975	113-49
11.	Seattle Mariners, 2001	.6914	112-50
12.	San Diego Padres, 2007	.6914	112-50
13.	Kansas City Royals, 1977	.6852	111-51
14.	New York Yankees, 1950	.6818	105-49
15.	San Francisco Giants, 1972	.6790	110-52
16.	Boston Red Sox, 1977	.6790	110-52
17.	Seattle Mariners, 1997	.6790	110-52
18.	Brooklyn Dodgers, 1953	.6753	104-50
19.	Montreal Expos, 1974	.6728	109-53
20.	Boston Red Sox, 1986	.6728	109-53
21.	Seattle Mariners, 1991	.6728	109-53
22.	Boston Red Sox, 2011	.6728	109-53
23.	Detroit Tigers, 1946	.6710	104-51
24.	Los Angeles Dodgers, 1973	.6687	109-54
25.	Boston Red Sox, 1976	.6667	108-54
26.	Boston Red Sox, 1978	.6667	108-54
27.	Montreal Expos, 1982	.6667	108-54
28.	New York Mets, 1986	.6667	108-54
29.	New York Yankees, 2005	.6667	108-54
30.	Minnesota Twins, 2009	.6667	108-54
31.	Boston Red Sox, 1946	.6645	103-52
32.	Cincinnati Reds, 1973	.6626	108-55
33.	Brooklyn Dodgers, 1941	.6623	102-52
34.	Boston Red Sox, 1942	.6623	102-52
35.	Brooklyn Dodgers, 1942	.6623	102-52
36.	St. Louis Cardinals, 1943	.6623	102-52
37.	St. Louis Cardinals, 1944	.6623	102-52
38.	Chicago Cubs, 1959	.6623	102-52
39.	San Francisco Giants, 1962	.6605	107-55
40.	San Francisco Giants, 1963	.6605	107-55
41.	San Francisco Giants, 1970	.6605	107-55
42.	Boston Red Sox, 1975	.6605	107-55
43.	New York Mets, 1979	.6605	107-55
44.	Montreal Expos, 1983	.6605	107-55
45.	Atlanta Braves, 1993	.6605	107-55
46.	Chicago Cubs, 2008	.6605	107-55
47.	Detroit Tigers, 1934	.6558	101-53
48.	Boston Red Sox, 1941	.6558	101-53
49.	Chicago White Sox, 1952	.6558	101-53
50.	New York Yankees, 1956	.6558	101-53

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