PokerSolver/5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BTN vs CO all-in

BTN vs CO all-in

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · CO limps, BTN isolates to 2.5bb, CO 3-bets to 5bb, BTN 4-bets to 11.5bb, CO goes all-in · Button to act

5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differHJCOBTNSBBB

Pot 113.64bbYour cards?

11.5bb

0.5bb

1bb

99.84bb

Tap your two cards.

Button's range

396 of 1,326 combos get here

Fold 83.1%Call 16.9%

Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the button (BTN) when CO limps, BTN isolates to 2.5bb, CO 3-bets to 5bb, BTN 4-bets to 11.5bb, CO goes all-in in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

CO limps, BTN isolates to 2.5bb, CO 3-bets to 5bb, BTN 4-bets to 11.5bb, CO goes all-in in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the button (BTN) folds 83.1% and calls 16.9%. Always call: JJ+, AKs, AKo. Mixed: 99-TT, 66, ATs-AQs, A8s, A6s, A3s, Q9s, 87s, AQo.

Always fold: 77, 55, 33, A9s, A7s, A4s-A5s, A2s, K4s+, QTs+, Q8s, J8s+, T9s, 96s+, 86s, 65s, 54s, AJo, A8o, KTo+, QTo+, JTo
Always call: JJ+, AKs, AKo
Mixed: 99-TT, 66, ATs-AQs, A8s, A6s, A3s, Q9s, 87s, AQo

Settings: 5-max · 100bb · 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, 100bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 23.9). 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.