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Cutoff opening range

The first seat where stealing is the point. Two players behind, position on everyone but the button, and a range half again as wide as middle position.

The CO opening chart

A 13 by 13 grid of every starting hand, showing which ones open-raise from CO — suited above the diagonal, offsuit below
High cardAKQJT98765432
AAAOpen-raiseAKsOpen-raiseAQsOpen-raiseAJsOpen-raiseATsOpen-raiseA9sOpen-raiseA8sOpen-raiseA7sOpen-raiseA6sOpen-raiseA5sOpen-raiseA4sOpen-raiseA3sOpen-raiseA2sOpen-raise
KAKoOpen-raiseKKOpen-raiseKQsOpen-raiseKJsOpen-raiseKTsOpen-raiseK9sOpen-raiseK8sOpen-raiseK7sOpen-raiseK6sOpen-raiseK5sFoldK4sFoldK3sFoldK2sFold
QAQoOpen-raiseKQoOpen-raiseQQOpen-raiseQJsOpen-raiseQTsOpen-raiseQ9sOpen-raiseQ8sOpen-raiseQ7sFoldQ6sFoldQ5sFoldQ4sFoldQ3sFoldQ2sFold
JAJoOpen-raiseKJoOpen-raiseQJoOpen-raiseJJOpen-raiseJTsOpen-raiseJ9sOpen-raiseJ8sOpen-raiseJ7sFoldJ6sFoldJ5sFoldJ4sFoldJ3sFoldJ2sFold
TAToOpen-raiseKToOpen-raiseQToOpen-raiseJToOpen-raiseTTOpen-raiseT9sOpen-raiseT8sOpen-raiseT7sFoldT6sFoldT5sFoldT4sFoldT3sFoldT2sFold
9A9oOpen-raiseK9oOpen-raiseQ9oOpen-raiseJ9oFoldT9oFold99Open-raise98sOpen-raise97sOpen-raise96sFold95sFold94sFold93sFold92sFold
8A8oOpen-raiseK8oFoldQ8oFoldJ8oFoldT8oFold98oFold88Open-raise87sOpen-raise86sOpen-raise85sFold84sFold83sFold82sFold
7A7oFoldK7oFoldQ7oFoldJ7oFoldT7oFold97oFold87oFold77Open-raise76sOpen-raise75sOpen-raise74sFold73sFold72sFold
6A6oFoldK6oFoldQ6oFoldJ6oFoldT6oFold96oFold86oFold76oFold66Open-raise65sOpen-raise64sFold63sFold62sFold
5A5oFoldK5oFoldQ5oFoldJ5oFoldT5oFold95oFold85oFold75oFold65oFold55Open-raise54sOpen-raise53sFold52sFold
4A4oFoldK4oFoldQ4oFoldJ4oFoldT4oFold94oFold84oFold74oFold64oFold54oFold44Open-raise43sFold42sFold
3A3oFoldK3oFoldQ3oFoldJ3oFoldT3oFold93oFold83oFold73oFold63oFold53oFold43oFold33Open-raise32sFold
2A2oFoldK2oFoldQ2oFoldJ2oFoldT2oFold92oFold82oFold72oFold62oFold52oFold42oFold32oFold22Open-raise
Open-raiseFold
Opens:
22+ A2s+ K6s+ Q8s+ J8s+ T8s+ 97s+ 86s+ 75s+ 65s 54s A8o+ K9o+ Q9o+ JTo
Share of hands:
29.4% of all 1,326 starting hands

The seat where stealing starts

The cutoff opens close to 30% of hands, and the reason is arithmetic rather than courage. Only three players remain — the button and two blinds — and all three fold most of the time. A raise that takes the blinds uncontested a decent share of the time is profitable before any card is dealt.

That changes which hands qualify. Suited gappers and weak offsuit aces are not opened because they flop well; they are opened because they win the pot preflop often enough, and because when they are called the cutoff usually has position. Fold equity, not hand strength, is doing the work.

The exception is the button. When the player on your left is aggressive and three-bets often, the bottom of this range stops printing — the steal fails and you play a reraised pot out of position. Against a tight button the same range should stretch further. This is the first seat where the neighbour matters more than the chart.

CO spots to practise

Real hands from the trainer where you are sitting in this seat. Each one shows the solver-verified answer before it asks you to trust anything.

FAQ

What is a good cutoff opening range?

Around 29% of hands in a 6-max cash game: all pairs, every suited ace, suited kings to K6s, suited gappers down to 75s and 54s, and offsuit broadways from A8o, K9o, Q9o and JTo. The chart and its notation are at the top of this page.

Why does the cutoff open so much wider than middle position?

Because only three players are left and all three fold most of the time. The raise wins the blinds uncontested often enough to profit on its own, and when it is called the cutoff has position on everyone except the button.

Should you adjust the cutoff range to the button?

Yes — this is the first seat where the player on your left matters more than the chart. Against a button that three-bets a lot, drop the weakest suited gappers and offsuit aces. Against a tight button, open wider than the baseline says.

The other seats