Season 3

Season 3 of GO Battle League lasted from July, 2020 to September , 2020. It is preceded by Season 2 and succeeded by Season 4.

Premier Cup was available with Ultra and Master Leagues during this Season, with the Premier Cup in Ultra League following to the CP limit of 2500. When all the formats were available, only the Premier Cup with no CP limit took place.

During this Season, Trainers still did not require walking to unlock battle sets. The "Battle Until You Win" feature is removed.

Rewards
Six Rare Candies were rewarded in the fourth win on the premium rewards instead of eight in the fifth win.

Basic Premium

Stardust

The random items included:
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Reaching rank 10 could earn avatar items and an avatar pose inspired by Blue.

Pokémon
Guaranteed first Pokémon encounters:
 * Pidgeot: rank 1
 * Galarian Zigzagoon: rank 4
 * Galarian Farfetch'd: rank 7
 * Rufflet: rank 8
 * Scraggy: rank 9
 * Pikachu Libre: rank 10 (one only)

End-of-season rewards

 * (rank 7 or above)

Attack Updates
At the start of this Season, certain Attacks had their stats changed and certain Pokémon received updates to their obtainable Attacks.

Attack Changes

 * Drill Peck: Base power increased from 60 to 65.
 * Brave Bird: Base power increased from 90 to 100, and 100% chance to decrease the user's Defense by 3 stages in Trainer Battles.
 * Infestation: Energy gain increased from 11 to 12 in Trainer Battles.
 * Hex: Energy gain increased from 11 to 12 in Trainer Battles and increased from 15 to 16 in Raid Battles.
 * Powder Snow: Base power increased from 4 to 5 in Trainer Battles.
 * Blizzard: Base power increased from 130 to 140 in Trainer Battles.
 * Flash Cannon: Energy cost increased from 65 to 70 in Trainer Battles.
 * Focus Blast: Base power decreased from 150 to 140 in Trainer Battles.
 * Moonblast: Chance to decrease the opponent's Attack by 1 stage in Trainer Battles decreased from 30% to 10%.

Attack Availability Updates
Some Pokémon received updates to their obtainable Attacks. These were added to their standard Attack pools.

Events

 * On July, Niantic announced GO Battle League will no longer be unavailable during server maintenance.
 * A new format, Flying Cup was initially planned for this Season. It was postponed to the GO Battle Night in Season 4.