Button (Dealer Button)

The button, or dealer button, is a disc that rotates clockwise around the poker table each hand to indicate the nominal dealer position. The player on the button acts last in all post-flop betting rounds, giving them the most valuable position at the table.

Acting last provides enormous informational advantage. You see every other player's action before making your decision. You can bet for value when others show weakness, check behind to control the pot, or bluff when everyone has checked. This advantage translates directly into higher expected profit.

Statistics from millions of online poker hands consistently show that the button is the most profitable position at the table. Professional players play the widest range of hands from the button and generate the highest win rate. Understanding and exploiting button advantage is a fundamental skill in poker.