Frequently Asked Questions
How DeckMelon works — data, stats, and methodology
How are win rate and battles calculated?
We get battle and player data directly from the official API of Supercell.
Every day, we process millions of battles to:
- find the most effective decks (current meta)
- calculate win rate based on the number of wins and losses for each deck
Win rate is the percentage of wins out of total battles.
Battles is the total number of matches played with a specific deck.
What data is used for win rate calculations?
We only use recent data from the Supercell API.
- All battles are stored for 30 days
- Battles older than 30 days are automatically removed
- Only fresh data is used in calculations
This helps us show the current meta, not outdated statistics.
How often are win rates and battles updated?
Win rate and battles are updated every hour.
We regularly get new data from the API and recalculate the stats to keep them accurate and up to date.