By clicking on one of these icons, you can see who the Best Players are and what your ranking is among all players. The classification is based on the number of Chips each player has won on a daily, weekly, or monthly basis. The more active player you are, the higher you will be ranked among the Best Players. This depends on the number of your victories and your stakes.
IMPORTANT NOTE: Since the classification is based on won Chips, the players that participate in the higher Chip stakes climb faster on the Leaderboards.