PokerSolver
PokerSolver/4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BTN vs BB all-in

BTN vs BB all-in

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · BTN opens 2.5bb, BB 3-bets to 5bb, BTN 4-bets to 11.5bb, BB goes all-in · Button to act

4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 112.48bbYour cards?
11.5bb
0.5bb
99.84bb

Tap your two cards.

Button's range

576 of 1,326 combos get here
Fold 89.5%Call 10.4%
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, BB 3-bets to 5bb, BTN 4-bets to 11.5bb, BB goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 100bb?

BTN opens 2.5bb, BB 3-bets to 5bb, BTN 4-bets to 11.5bb, BB goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the button (BTN) folds 89.5% and calls 10.4%. Always call: JJ+, AKs, AKo. Mixed: 99-TT, 77, 55, AQs.

Always fold
A9s, A5s-A7s, A2s, KJs+, K5s-K8s, K3s, Q8s-Q9s, Q5s, J5s-J9s, T6s+, 98s, 96s, 86s, 75s+, 64s+, A7o-AQo, A5o, K7o+, QTo, Q8o, J9o+
Always call
JJ+, AKs, AKo
Mixed
99-TT, 77, 55, AQs
Settings: 4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 100bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.66). 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.

Fits exactly: no game we have checked.

Close: CoinPoker cash with antes NL50 (rake before the flop in 3-bet pots there, none here).

Rake sources: 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.