GlossaryAt the table

BTN (button)

The dealer seat, which acts last on every street after the flop, the best seat at the table.

Last updated

What it means
The button marks the dealer. It moves one seat left each hand. After the flop the button always acts last, seeing what everyone else did first.
How it is calculated
Only the two blinds act after the button preflop, so it opens the widest range and plays the most pots in position.
Worked example
At 100bb the button opens about 46% of hands. In a 1.5bb pot with only the blinds to pass, even hands like K5s and 64s are profitable opens.
Why it matters
Acting last is worth a lot of big blinds over time, which is why every seat's range widens as it gets closer to the button.

Try it: Range browser

Used in: Push/fold charts

See also: Position, RFI