progressBTN open range at 38 BB
8-max MTT · ante 12.5 % · folded to the Button · chip EV
How BTN opens at 38 BB
When the action folds to the Button with 38 big blinds (8-max MTT with ante), the book plays 48% of hands: a raise to 2.1 BB with 48%. The other 52% fold.
Always raised: AA, AKs, AKo, AQs, AQo, AJs, AJo, ATs, ATo, A9s, A9o, A8s, A8o, A7s and 80 more.
Mixed hands (the book splits them between actions): A2o, Q8o, T5s, 95s, 85s, 64s.
At this depth everything opens with a small raise; all-ins appear only later, against 3-bets.
Next to it at 38 BB: CO 35%, SB 87%. 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): T5s 54%, 85s 44%, 64s 40%, Q8o 34%. These are the hands worth drilling, because a small change in the opponents or the stack flips them.
What changes around 38 BB
The book opens 48% of hands here, 47% at 36 BB and 48% at 40 BB. Compared with 36 BB, these hands come into the range: T5s.
Free 7-day ICM course by e-mail
One short lesson a day, each with a worked example in exact numbers: chips vs. money, the bubble factor, who feels the pressure, payout structures, satellites. No account needed.
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.
progressGTOAll rangesGuidesDaily spotICM calculatorOpen the appPrivacyTerms