progressCO open range at 12 BB
8-max MTT · ante 12.5 % · folded to the Cutoff · chip EV
How CO opens at 12 BB
When the action folds to the Cutoff with 12 big blinds (8-max MTT with ante), the book plays 32% of hands: a raise to 2 BB with 5.2% and all-in with 27%. The other 68% fold.
Always raised: A7s, K8s, K6s, K5s, K4s, Q8s.
Always all-in: AA, AKo, AQo, AJo, ATs, ATo, A9o, A8o, A7o, A6s, A6o, A5s, A5o, A4s, A4o, A3s, A3o, A2s and 22 more.
Mixed hands (the book splits them between actions): AKs, AQs, AJs, A9s, A8s, KK, KJs, KTs, KTo, K9s, QQ, QJs, QTo, Q7s and 5 more.
At this depth most of the game is push or fold — a small raise is kept only for a few hands that want a call.
Next to it at 12 BB: HJ 25%, BTN 40%. Seats closer to the button open more here, because fewer players are left to wake up with a big hand.
Closest decisions (the book opens them only part of the time): Q7s 28%. These are the hands worth drilling, because a small change in the opponents or the stack flips them.
What changes around 12 BB
The book opens 32% of hands here, 33% at 11 BB and 31% at 13 BB. These leave it: T7s, 76s. With the extra chips some former all-ins become small raises: AQs, A8s, A7s, KK, KTs, K6s and 3 more.
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Numbers come from the progressGTO solution book (v14, chip EV, 8-max, ante 12.5 %): our own equilibrium computation with a modelled postflop. It is an approximation, not an exact solution, and it keeps improving. Hover or tap a hand to see its exact frequencies.
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