I just learn of the closest badminton tournament before the Rio Olympics 2016.
The GP series is held in Ho Chi Minh City (aka Saigon) on the 7/18/2016 to 7/24/2016.
It's a good excuse for me to backpack to Saigon, Vietnam and try the streetfood. Very tempted to hop on an Air Asia or Jet Star plane to watch the Vietnam Open.
The location is excellent tourist area in district 1, with plenty of sightseeing in addition to watching a game. Very tempting...