Highest winning percentage by an NBA coach

Highest winning percentage by an NBA coach
Who
Phil Jackson
What
0.704 percentage
Where
Not Applicable
When
2011
The highest regular season winning percentage by a coach in a NBA career is .704, by Phil Jackson (USA) while coaching the Chicago Bulls (USA) from 1989-90 to 1997-98 and the Los Angeles Lakers (USA) from 1999-2000 to 2003-04 and from 2005-06 to 2010-11. Jackson won 1,155 of 1,640 regular season games.