progressBB defense vs HJ open at 33 BB
8-max MTT · ante 12.5 % · Hijack opens, small blind folds · chip EV
How the BB defends at 33 BB
Facing a Hijack open to 2 BB (small blind folds) with 33 big blinds, the big blind folds only 21% of hands, calls 67%, 3-bets to 8 BB with 10% and goes all-in with 1.3%. The big blind already has one blind in the pot and closes the action, so it gets a good price.
Always 3-bet: AA, AKs, AQs, AQo, AJs, KK, QQ, JJ, TT, 99.
Folded: K2o, Q6o, Q5o, Q4o, Q3o, Q2o, J3o, J2o, T5o, T4o, T3o, T2o and 9 more.
Against other openers at 33 BB the big blind continues with: vs BTN 92%, vs CO 85%, vs LJ 76%, vs UTG+1 72%, vs UTG 72%. The later the opener, the wider its range, and the more the big blind defends.
Closest decisions (the book continues with them only part of the time): Q7o 46%, J4o 30%, K3o 28%, K4o 76%. These are the hands worth drilling, because a small change in the opponents or the stack flips them.
What changes around 33 BB
The book continues with 79% of hands here, 79% at 32 BB and 78% at 35 BB. These leave it: Q7o.
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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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