This is how you join Nintendo's official in-game tournament and show the world how to roll like a boss!
To celebrate the launch of Mario Kart 8 Deluxe on the Switch, Nintendo is hosting two weekly tournaments in the month of May. You can join in on the action and try to reach the pinnacle of achievement by being the actual best racer in the Mario Kart world. All you have to do is join the tournament between now and the end of May, as many times as you can to increase your score.
The first tournament is in the 150cc race and the other is Battle Mode. You can search for them by name, or find them using their unique code.
Full story from the iMore Blog...