I'll add a mainland china update. We are back and running at full speed for badminton courts. Even the government run large sports centers are not only open, but offering cheaper prices for a short time to encourage playing.
(Although the largest government run sport center in my neighborhood is closed and sealed because it is where everyone who flies in has to go under supervision. Foreigners are totally blocked from entering china, even those who have a visa or a work permit, and any Chinese person who enters has to undergo a 2 week mandatory/supervised quarantine under supervision in specific facilities. So they escort them off the plane, bring them to the badminton courts, process them and bring them to various hotels around the city set up for the quarantine. It's an intense operation and of course no civilian is allowed anywhere near this sports center as there have been sick people who arrive in the city. But it's the largest facility near the airport so that's why it was sacrificed I guess! But those courts won't open for awhile and this sports center had a lot of badminton competitions...bummer!)
We are eagerly awaiting word on when the competitions will start, but nothing yet. That will be later because crowds are happening, but still kinda discouraged (though we don't have any social distancing rule here.) People need temp checks to enter most courts, and everyone arrives and leaves with masks on, but most people have stopped actually playing in masks (which was happening for a few weeks.)
Chinese scientists are warning of another wave, maybe Nov, and saying everything could be locked down again so I think people are getting out now and playing as much as possible, cause the future is uncertain...