Compete in Rating Battle Season 9, where new opportunities await to measure your Pokémon battling skills online against players around the world. The Rating Battle leaderboards reset at the beginning of each season so everyone can start on equal footing. As you battle, you’ll move up and down the rankings based on your match outcomes. Rating Battle Season 9 starts on March 13, 2018, at 0:00 (UTC), so get ready for fun battles and new challenges.
Rating Battles are available in Pokémon Ultra Sun, Pokémon Ultra Moon, Pokémon Sun and Pokémon Moon, but please note that Pokémon Ultra Sun and Pokémon Ultra Moon battles will be ranked separately from Pokémon Sun and Pokémon Moon battles. Also, Pokémon and moves introduced in Pokémon Ultra Sun and Pokémon Ultra Moon may not be used in Pokémon Sun and Pokémon Moon Rating Battles.
The Special format for this season will be played using Double Battles, where you’ll create a team of up to six Pokémon, but only two Pokémon will enter each battle. You may include any Pokémon from the National Pokédex, but Mythical Pokémon and some Legendary Pokémon will not be permitted. Pokémon brought in from previous games via Poké Transporter will be permitted. Remember that you’ll need a Pokémon Trainer Club account and your own copy of Pokémon Ultra Sun, Pokémon Ultra Moon, Pokémon Sun, or Pokémon Moon registered at the Pokémon Global Link to participate.
Visit the Rating Battle page to keep an eye on your record and rankings throughout Rating Battle Season 9. You can also check out which Pokémon are the most popular in each format, as well as their most common moves and more. Good luck battling in Rating Battle Season 9!
Source: Pokémon Global Link