Duolingo:- First Win in The Diamond Tournament

How do I use classroom Leaderboards? – Duolingo for Schools

Duolingo Leagues explained - Duolingo Guide

cohost! - One Year As One Of The Top Competitive Duolingo Players On Earth (I Am Going Out In A Blaze Of Glory)

First in the Diamond League of Duolingo!

How Duolingo's new gamification mechanism convinced me to pay, by Shengyu Chen

When Duolingo Leagues End (& 5 Tips To Get Ahead)

Just another example of how the competition in the leagues is becoming more and more ridiculous. The leader of the demotion zone has 1,831 XP, while first place has 17,460 XP. This

Gamification in eLearning - Benefits, Methods & Real Examples - Belitsoft

I'm addicted to apps and I'm not asking to be rescued

How to win Diamond League in Duolingo! – Clark Dever