list of best major league baseball season won - loss records 

Statements about this table:
the new york yankee franchise have a percentage of 703 in 1998 when they win the world series
in the year 1939 , the new york yankee have win the world series in the al league
the pittsburgh pirate win the won 1909 world series with a win percentage of 724 and as a national league team
pittsburgh pirate have win the world series when nl be the league and they score percentage over 0.741 before the year 1902
year
franchise
league
percentage
finish
1906
chicago cubs
nl
763
lost 1906 world series
1902
pittsburgh pirates
nl
741
national league champions
1886
chicago white stockings
nl
726
lost 1886 world series
1909
pittsburgh pirates
nl
724
won 1909 world series
1954
cleveland indians
al
721
lost 1954 world series
year
franchise
league
percentage
finish
2001
seattle mariners
al
716
lost 2001 alcs
1927
new york yankees
al
714
won 1927 world series
1886
detroit wolverines
nl
707
2nd place in national league
1897
boston beaneaters
nl
705
lost 1897 temple cup
1907
chicago cubs
nl
704
won 1907 world series
year
franchise
league
percentage
finish
1931
philadelphia athletics
al
704
lost 1931 world series
1887
st louis browns
aa
704
lost 1887 world series
1998
new york yankees
al
703
won 1998 world series
1939
new york yankees
al
702
won 1939 world series