Niantic has announced that on Friday, April 10th, 2020, the GO Battle League leaderboard will launch. To celebrate the launch of the GO Battle League leaderboards, a GO Battle Day: Marill will take place on Sunday, April 12th, 2020!

View globally ranked Trainers with the GO Battle League leaderboard, and celebrate with GO Battle Day: Marill!

Trainers, Ever wanted to see who’s at the top of their game in the GO Battle League? On Friday, April 10, 2020 (PDT), you’ll be able to with the launch of the GO Battle League leaderboard on PokemonGOLive.com! The leaderboard is launching just after the GO Battle League changes from Ultra League to Master League, giving you an opportunity to see where you and others might stand right after the GO Battle League switches to a new format.

Here’s what you can expect from the GO Battle League leaderboard.

• It will show the top five hundred Trainers in the world and their Trainer nicknames, teams, ranks, ratings, and total matches.
• Rankings are based on the previous day’s in-game ratings for Trainers rank 7 and up. The leaderboard is scheduled to update between approximately 8:00 p.m. UTC and 10:00 p.m. UTC every day. (Note that leaderboard updates may be delayed by things such as maintenance.)
• Trainers with active disciplinary action or inappropriate Trainer nicknames will be excluded without prior notice.

Celebrate the launch of the GO Battle League leaderboards with GO Battle Day: Marill on Sunday, April 12, 2020! This brand-new event will feature Marill, the Aqua Mouse Pokémon, and activities related to the GO Battle League. This Water- and Fairy-type Pokémon evolves into Azumarill—a popular Pokémon in the Great League!

The more GO Battle League battles you win from 11:00 a.m. to 2:00 p.m. local time during the event, the more chances you’ll have to encounter Marill! During this time frame, Marill will appear as a guaranteed Basic Reward after your first and third wins. Use a Premium Battle Pass, and Marill will appear after every win as a guaranteed Premium Reward! Trainers will also receive 2× Catch Stardust for catching Marill during this time period. Please note that the encounters that serve as rewards for ranking up, such as the Pikachu Libre encounter at rank 10, will stay the same.

In addition, all day on GO Battle Day: Marill (from 12:00 a.m. to 11:59 p.m. local time), you’ll be able to complete 20 sets of GO Battle League battles, up from the regular 5 sets, for a total of up to 100 battles.

Stay tuned for more details on other in-game events happening in April!

Source: https://pokemongolive.com/en/post/gobattleleague-leaderboards/