Players will be automatically grouped with 19 other players, and during the allotted time will compete for the highest total score in the eligible cups.
At the end of the ranked time period, the highest scoring players will receive an in-game reward and will be moved up to a higher tier to compete for a high score against other players in the next ranked cups.
The opponents you're matched with are selected from tiers close to yours. Conditions for promotion and demotion vary by tier. From tier 21 onward, you may be promoted or demoted based on your position. The Highest Tier listed on another player's Player Info page may not be their current tier.