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SB open raise range at 40bb — 9-max tournament (MTT)

9-max · tournaments · 40bb eff

At 40bb effective in a 9-max tournament (MTT), GTO preflop strategy plays 86% of hands from the Small Blind when the action folds to you: 25.6% open raise to 4bb, 60.4% limp, and 14% fold. 96 of the 169 starting hands are played as a mixed strategy rather than a pure one. For comparison, the same seat at 30bb plays 89.5% — 3.5 points tighter. At this depth, Button plays 55.5%.

Open raise 4bb25.6%339 combos
Limp60.4%801 combos
Fold14%186 combos
Same seat, other stacks
10bb15bb20bb25bb30bb40bb
Same stack, other seats
EP1EP2MP1MP2HJCOBTNSB
Range in text form
Pure opens (100%): QQ+, AQs+, ATs-A7s, T9s+
Opened at 50%+ frequency: 99+, A6s+, KTs+, J9s, T8s+, T4s-T3s, 98s+, 94s-93s, 87s+, 76s+, 73s, 64s+, 54s+, 42s, AKo+, A9o-A7o, KJo+, K9o-K8o, QTo+, Q7o, J7o, T7o, 97o
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Frequently asked

What percentage of hands should you open from the Small Blind at 40bb?

In a 9-max tournament (MTT) at 40bb effective, GTO strategy plays 86% of hands, mostly as an open raise to 4bb.

What is the standard open raise size from the Small Blind at 40bb?

4bb. The size comes from the solution itself, not a convention.

Which hands are always opened from the Small Blind at 40bb?

The pure (100% frequency) part of the range is: QQ+, AQs+, ATs-A7s, T9s+.