Joystiq
Joystiq News
Late last year, Niantic Pokémon Go players a feature called "Go Battle League" that would finally give them a way to fight other trainers worldwide. Now, the developer has rolling out Go Battle League, and it will make its way to players based on their trainer level. You may have to wait a bit longer to get it, because Niantic temporarily its release "to ensure a smooth feature launch and prevent server issues." But when you do get the feature, you'll be able to fight against other trainers at the Go Battle League preseason events.
Source:
Console Bang News!