Larussa
The new York Yankees
St Louis Cardinals
The 1906 Chicago Cubs at .763 (116-36).
.500 and above.
Washington baseball any league
The 2002 Oakland Athletics hold the record for the longest Major League Baseball (MLB) winning streak by an American League (AL) team with 20 consecutive wins.
15%
75%
Ron Guidry posted a .893 winning percentage which was the highest in baseball history by a 20 game winner.
62%
21 games 1935 Chicago cubs