Washington Nationals Franchise History

World Series championship seasons: none
Last World Series championship: none in 48 seasons
 
Montreal Expos became Washington Nationals in 2005
 
Best finish (by location):
Montreal lost to Los Angeles in NL Championship Series in 1981 season
Washington lost to St Louis in NL Division Series in 2012 season
Washington lost to San Francisco in NL Division Series in 2014 season
Washington lost to LA Dodgers in NL Division Series in 2016 season