How many leagues are there in Duolingo?

Wondering how many leagues are there in Duolingo? Duolingo has ten leagues, and they are Bronze, Silver, Gold, Sapphire, Ruby, Emerald, Amethyst, Pearl, Obsidian, and Diamond.

Duolingo Leagues explained - Duolingo Guide

How Duolingo Leaderboards and Leagues Work

It's time to talk about some Duolingo updates – Post-Millennial Panda

Diamond league this week has been harsh , 2.2k is in demotion zone

What is Duolingo Leagues? Everything You Need to Know - Taco & Bean

Duolingo Is An App For Language-Learning, So Why Is It Plagued

Rosetta Stone vs Duolingo – StoryLearning

Duolingo Turned Me Into a Monster - CNET

Duolingo Leaderboard League Badges by John Trivelli for Duolingo

Duolingo:- First Win in The Diamond Tournament

Duolingo Leagues & Leaderboards - EVERYTHING You Need To Know

Duolingo Leagues & Leaderboards - EVERYTHING You Need To Know