PokerSolver
PokerSolver/6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BTN vs SB all-in

BTN vs SB all-in

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 40bb · BTN opens 2.5bb, SB 3-bets to 5bb, BTN 4-bets to 11.5bb, SB goes all-in · Button to act

Fits exactlyno game we have checked
Close1 games
  • CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 53.3bbYour cards?
11.5bb
39.84bb
1bb

Tap your two cards.

Button's range

360 of 1,326 combos get here
Fold 72.9%Call 27.1%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the button (BTN) when BTN opens 2.5bb, SB 3-bets to 5bb, BTN 4-bets to 11.5bb, SB goes all-in in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 40bb?

BTN opens 2.5bb, SB 3-bets to 5bb, BTN 4-bets to 11.5bb, SB goes all-in in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 40bb: the button (BTN) folds 72.9% and calls 27.1%. Always call: JJ+, 88-99, AQs+, ATs. Mixed: A8s-A9s.

Always fold
Q5s, J5s, T5s, A4o-A8o, KTo, K8o, K5o, Q8o-Q9o, J9o+
Always call
JJ+, 88-99, AQs+, ATs
Mixed
A8s-A9s
Settings: 6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 40bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.93). A jackpot fee on bigger pots is not in this solve, so lines that build big pots may be slightly too loose. Bet sizes are the solved ones; a size that is not here plays like the nearest one.

Rake sources for the games it fits: the ante from 93 of our own CoinPoker hands at $0.25/$0.50 with a $0.08 ante, played 2026-09-30; the caps and the preflop rule from coinpoker.com/games/texas-holdem/, fetched 2026-10-31.