August 9th (9:00pm PDT): Official release of the Open Beta on the Nintendo eShop and start of the Open Beta session (all players can now launch the game and have access to the online game servers).
August 3rd: Release the Open Beta on the eShop for pre-load only (players will be able to begin downloading the Open Beta client on this day).
The open beta for Switch goes down from August 9-11, with pre-load available on August 3.