Trainers will be able to register using their Pokémon Sword or Pokémon Shield game by entering the VS menu and selecting Battle Stadium, Online Competitions, and finally Search Official Competitions.
Just like with most other Online Competitions and Ranked Battles, there’ll be a few other additional rules. Compared to previous Online Competitions, there will be reduced battle and turn times. Make sure to compete to get a reward of 50 Battle Points just for participating in at least one battle, win or lose. You’ll need to sign up before the competition starts in order to participate, so don’t delay.