Winning ranked duels advances your rank. The tiers are based on your Elo rating:
- Bronze: below 1100 Elo
- Silver: 1100 to 1299 Elo
- Gold: 1300 to 1499 Elo
- Platinum: 1500 to 1799 Elo
- Diamond: 1800+ Elo
Your rank medallion is displayed across the game client, your matches, and your forum profile.