GlossaryStrategy

Opening ranges

Which hands to raise when everyone before you has folded, and how that changes with position.

Last updated

What it means
The opening skills cover raising first in, from early position, late position and the small blind. Each position has its own chart.
How it is calculated
The more players left to act behind you, the more likely one of them has a strong hand, so early positions open tight and the button opens wide. The small blind opens against the big blind alone but plays the hand out of position.
Worked example
At a 6-max table under the gun has five players behind and opens about 11% of hands in this app's 100bb charts. The button has only the two blinds behind and opens about 46%, roughly four times as many combos.
Why it matters
Opening too wide from early position is a common and expensive beginner leak, and learning the charts fixes almost all of it.

Try it: Range browser

Used in: Preflop charts, one page each

See also: RFI, Position, Range