progressSB open range at 20 BB
8-max MTT · ante 12.5 % · folded to the Small Blind · chip EV
How SB opens at 20 BB
When the action folds to the Small Blind with 20 big blinds (8-max MTT with ante), the book plays 87% of hands: a raise to 2.5 BB with 12% and all-in with 20%, and a limp with 54%. The other 13% fold.
Always raised: KQs, KJs, K7o, QJs, Q8o, Q7o, JTs.
Always all-in: AJo, ATo, A9o, A8o, A7o, A6o, A5o, A4o, A3s, A3o, A2s, A2o, KTo, K9o, K6o, Q9o, 87s, 86s and 6 more.
Mixed hands (the book splits them between actions): AA, AKs, AKo, AQs, AQo, A4s, KK, KQo, KJo, KTs, K9s, K8s, K8o, K7s and 28 more.
At this depth the open is a small raise, with some hands going all-in directly.
Next to it at 20 BB: BTN 41%. The small blind only has the big blind behind, but it is out of position after the flop, so it mixes raises, limps and all-ins instead of simply opening wider.
Closest decisions (the book opens them only part of the time): 93o 50%, 64o 68%, 94o 74%. These are the hands worth drilling, because a small change in the opponents or the stack flips them.
What changes around 20 BB
The book opens 87% of hands here, 87% at 19 BB and 87% at 21 BB. Going from 19 BB to 20 BB, no hand crosses the 50% line; only the frequencies shift. With the extra chips some former all-ins become small raises: K7o, K5o.
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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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