Season 2

Season 2 of GO Battle League lasted from May, 2020 to July , 2020. It is preceded by Season 1 and succeeded by Season 3.

Premier Cup was introduced in this Season. Similar to the Master League, the Premier Cup does not have a limit on Combat Power. However, Legendary and Mythical Pokémon are not eligible to participate.

During this Season, Trainers still did not require walking to unlock battle sets. A maximum of 6 sets could be played after June, 2020.

Formats

 * Battle League Great.png Great League: May, 2020 to June , 2020
 * Battle League Ultra.png Ultra League: June, 2020 to July , 2020
 * Battle League Master.png Master League and Premier Cup: July, 2020 to July , 2020
 * GO Battle League.png All three Leagues and Premier Cup: July, 2020 to July , 2020

Ranks and Ratings
The requirements were different from Season 1.

Rewards
Pokémon reward encounter was changed to the third win on the basic rewards or the first win on the premium rewards. From June to, 2020, the Rare Candy and Charged TM positions in premium track were swapped.

Basic Premium

Stardust

The random items included:
 * or.
 * or.
 * or.
 * or.

Reaching rank 10 could reward avatar items and an avatar pose inspired by Steven.

Pokémon
Guaranteed Pokémon encounters:
 * Metagross was the first guaranteed encounter.
 * Stunfisk was the first encounter in rank 4.
 * Rufflet was the first encounter in rank 8.
 * Scraggy was the first encounter in rank 9.
 * Libre Pikachu was the first encounter in rank 10, one only.

The Unova Starters were not available from June to, 2020.

End-of-season rewards

 * (rank 7 or above)

Events

 * Season 2 was originally planned to start on May, but due to certain technical issues, it was delayed until May.
 * As a results, the format schedule was changed. Below shows the original version:
 * Battle League Great.png Great League: May, 2020 to May , 2020
 * Battle League Ultra.png Ultra League: May, 2020 to June , 2020
 * Battle League Master.png Master League and Premier Cup: June, 2020 to June , 2020
 * GO Battle League.png All three Leagues and Premier Cup: June, 2020 to July , 2020
 * Season 2 was disabled between June to June  due to a serious exploit. The glitch is about using two devices at the same time to charge Charged Attacks immensely, making Pokémon such as Swampert and Melmetal "broken", as described by the community.
 * As a results, the format schedule was changed again. Below shows the version before the downtime:
 * Battle League Great.png Great League: May, 2020 to June , 2020
 * Battle League Ultra.png Ultra League: June, 2020 to June , 2020
 * Battle League Master.png Master League and Premier Cup: June, 2020 to July , 2020
 * GO Battle League.png All three Leagues and Premier Cup: July, 2020 to July , 2020
 * The leaderboard was temporarily disabled between June to July.

Maintenance

 * May, 2020 - temporarily closed for 3 hours
 * May, 2020 - temporarily closed for 5 hours
 * May, 2020 - temporarily closed for 3 hours
 * May, 2020 - temporarily closed for 3 hours
 * June, 2020 - temporarily closed for 3 hours
 * Disabled between June to June
 * June, 2020 - temporarily closed for 3 hours
 * June, 2020 - temporarily closed for 3 hours
 * July, 2020 - temporarily closed for 3 hours
 * July, 2020 - temporarily closed for 2 hours
 * July, 2020 - temporarily closed for 3 hours
 * July, 2020 - temporarily closed for 3 hours
 * July, 2020 - temporarily closed for 3 hours
 * July, 2020 - temporarily closed for 3 hours