progressSB vs BTN open at 20 BB
8-max MTT · ante 12.5 % · chip EV
SB facing a BTN open at 20 BB
The button opens to 2 BB and the action reaches the small blind with 20 big blinds. The book folds 71% of hands, calls with 6.3%, 3-bets to 5 BB with 0.1% and goes all-in with 23%.
Always all-in: AA, AKs, AKo, AQs, AQo, AJs, AJo, ATo, A9o, A8o, A7o, A6s, A6o, A5s and 30 more.
Always call: A9s, A8s, A7s, KJs, KJo, KTs, KTo, K9s, K8s, K5s, QTo.
The small blind calls rarely: it is out of position against the raiser and the big blind can still squeeze behind, so the book prefers to either 3-bet or fold.
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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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