How get All HorseRaces of Today for UK and AU ?

[Exchange_API]

How to get all races (Open & Closed) of today ?
I want both Open & Closed Races.
If I use MarketCatalogue,I get races which is Open.
If I use MarkerBook,I have to pass MarketIds Which I don't know for the Closed Races.

[JayBee]

Use the Visualiser to get a feel for how to form a valid request.

You will also see all the parameters that you require to do what you wish to do.

How to get all races (Open & Closed) of today ?
I want both Open & Closed Races.
If I use MarketCatalogue,I get races which is Open.
If I use MarkerBook,I have to pass MarketIds Which I don't know for the Closed Races.