In Pokémon Sword and Pokémon Shield, Trainers can connect to the Internet and battle against each other in either Single or Double Battle formats in the Battle Stadium. In the Battle Stadium, Pokémon Trainers can engage in Ranked Battles where they will face other Trainers and their Battle Teams from across the globe.
- Trainers will battle those with a similar rank and will earn points depending on the results of those battles.
- Each rank in Ranked Battles belongs to a specific tier, and Trainers can increase their rank by earning enough points.
- Trainers can check their own ranking in the Battle Stadium. They can also see how all of the participants placed in a competition on the smartphone version of Pokémon HOME.
- Rewards from Ranked Battle Season 1 are now available for all players who completed one or more matches in Ranked Battles.
Source: Nintendo.com