GlossaryAt the table

CO (cutoff)

The seat just right of the button, the second-best seat at the table.

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What it means
The cutoff acts right before the button. Only the button and the two blinds are left to act after it opens.
How it is calculated
With fewer players behind, the cutoff opens a wide range, and it steals the blinds often when the button folds.
Worked example
At 100bb the cutoff opens about 24% of hands, including most suited aces and hands like K9s and QTs.
Why it matters
Late seats are where most of the profit in poker is made, so the cutoff and button ranges are worth knowing cold.

Try it: Range browser

Used in: Push/fold charts

See also: Position, RFI