progressBB defense vs UTG+1 open at 50 BB
8-max MTT · ante 12.5 % · UTG+1 opens, small blind folds · chip EV
How the BB defends at 50 BB
Facing a UTG+1 open to 2 BB (small blind folds) with 50 big blinds, the big blind folds only 27% of hands, calls 66%, 3-bets to 9 BB with 7.0% and goes all-in with 0.1%. 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, AKo, AQo, KK, QQ, JJ, TT.
Folded: K5o, K4o, K3o, K2o, Q7o, Q6o, Q5o, Q4o, Q3o, Q2o, J6o, J5o and 16 more.
Against other openers at 50 BB the big blind continues with: vs BTN 88%, vs CO 78%, vs HJ 78%, vs LJ 74%, vs UTG 70%. 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): T6o 50%, Q8o 56%, K6o 60%, 95o 30%, 52o 80%. These are the hands worth drilling, because a small change in the opponents or the stack flips them.
What changes around 50 BB
The book continues with 73% of hands here, 72% at 45 BB and 71% at 55 BB. Compared with 45 BB, these hands come into the range: Q8o, T6o.
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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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