it is not only those that are closed or shutdown. Almost all sportsbook betting and casinos in the affected country are closed during the Covid-19. This shutdown has several reasons and purposes:
1. Those places are the locations with many people, on the other hand, we must do physical distancing to avoid being affected by Covid-19.
2. We do not know who has been affected by the virus, although the person looks healthy, it doesn't mean that he may not get the virus, he may be a carrier. So, better to stay away and keep physical distancing
3. people prefer to be safe and alive than forcing to get much money but risking their life at that time
4. People can play online betting or gambling in this pandemic era.
We can see a shutdown of all races soon, it depends on the government decision, and lets hope that this restriction wont last more than a ~month
It doesn't depend on the government. It depends on how the coronavirus still affects the country. The medical party will give data when the pandemic ends or when everything is okay to be opened again. And then, the government can announce when it is. We cannot determine for a month or month, just let them work and we just follow their regulation and restriction if we want to stay healthy and alive.