Supercell has announced that they are developing an enhanced in-game Tournament feature for Clash Royale. Read about it HERE.
Clash Royale will allow anyone to run a tournament, this is paid for by gems. The tournament will be free to enter and only one tournament can be entered at a time.
The gems are used for the prize fund, the largest tournament will award 15,000 cards to the winner.
Everyone that is in the top half of the leaderboard will win a chest, naturally a larger chest will be awarded the further up the leaderboard you are.
Let’s hope that Supercell are developing something similar for Clash of Clans.