progressCO open range at 25 BB
8-max MTT · ante 12.5 % · folded to the Cutoff · chip EV
How CO opens at 25 BB
When the action folds to the Cutoff with 25 big blinds (8-max MTT with ante), the book plays 34% of hands: a raise to 2 BB with 34%. The other 66% fold.
Always raised: AA, AKs, AKo, AQs, AQo, AJs, AJo, ATs, ATo, A9s, A9o, A8s, A8o, A7s and 54 more.
Mixed hands (the book splits them between actions): A5o, K9o, Q4s, T9o, 86s, 22.
At this depth the open is a small raise, with some hands going all-in directly.
Next to it at 25 BB: HJ 27%, BTN 44%. 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): 86s 54%, Q4s 56%, T9o 64%, K9o 30%, A5o 74%, 22 76%. These are the hands worth drilling, because a small change in the opponents or the stack flips them.
What changes around 25 BB
The book opens 34% of hands here, 33% at 24 BB and 34% at 26 BB. Compared with 24 BB, these hands come into the range: Q4s, T9o, 86s.
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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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