PokerSolver/6-max · 40bb · SB 0.5bb · 5% rake, cap 3bb/BTN vs CO 3-bet 9bb

BTN vs CO 3-bet 9bb

6-max · SB 0.5bb · 5% rake, cap 3bb (blinds 0.5/1bb) · 40bb · CO limps, BTN isolates to 3bb, CO 3-bets to 9bb · Button to act

6-max · 40bb · SB 0.5bb · 5% rake, cap 3bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differUTGHJCOBTNSBBB

Pot 13.5bbYour cards?

3bb

0.5bb

1bb

9bb

Tap your two cards.

Button's range

326 of 1,326 combos get here

Fold 64.3%Call 7%All-in 40bb 28.8%

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 3bb, CO 3-bets to 9bb in 6-max · SB 0.5bb · 5% rake, cap 3bb at 40bb?

CO limps, BTN isolates to 3bb, CO 3-bets to 9bb in 6-max · SB 0.5bb · 5% rake, cap 3bb, 40bb: the button (BTN) folds 64.3%, calls 7% and goes all-in 40bb 28.8%. Always all-in 40bb: QQ-KK, TT, AKs, KTs, AKo. Mixed: AA, JJ, 88-99, 55-66, ATs-AQs, A6s-A8s, A4s, A2s, KJs+, K6s-K7s, QTs+, J9s+, T8s, 87s, 53s, AQo, ATo, KJo+.

Always fold: 77, 44, A9s, A5s, A3s, K9s, Q9s, Q4s, J8s, T9s, 98s, 76s, 54s, AJo, A9o, QJo, JTo, T9o
Always call: No hand plays this every time
Always all-in 40bb: QQ-KK, TT, AKs, KTs, AKo
Mixed: AA, JJ, 88-99, 55-66, ATs-AQs, A6s-A8s, A4s, A2s, KJs+, K6s-K7s, QTs+, J9s+, T8s, 87s, 53s, AQo, ATo, KJo+

Settings: 6-max · 40bb · SB 0.5bb · 5% rake, cap 3bb (small blind 0.5bb, big blind 1bb, 40bb stacks, 5% rake capped at 3bb; before the flop, rake only after a 3-bet). Solver: HoldemResources Calculator (HRC) (HRC CI 24.4). 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: GGPoker Rush & Cash NL2, NL10, NL50, NL100, NL200; GGPoker regular cash NL200; Natural8 Rush & Cash NL2, NL10, NL50, NL100, NL200; Natural8 regular cash NL200.

Close: GGPoker regular cash NL100 (rake cap 5bb there, 3bb here).

Close: PokerStars Zoom NL50 (rake cap 4bb there, 3bb here; no rake when no flop is dealt there).

Close: PokerStars Zoom NL100 (rake cap 2.5bb there, 3bb here; no rake when no flop is dealt there).

Close: PokerStars cash NL50 (rake cap 4bb there, 3bb here; no rake when no flop is dealt there).

Close: PokerStars cash NL100 (rake cap 2.5bb there, 3bb here; no rake when no flop is dealt there).

Close: CoinPoker cash NL100 (rake cap 5bb there, 3bb here; only its tables without antes).

Close: CoinPoker cash NL200 (only its tables without antes).

Close: WPT Global cash NL10, NL20 (rake cap 6bb there, 3bb here; 4% rake there, 5% here; no rake when no flop is dealt there; only its tables without antes).

Close: WPT Global cash NL100, NL200 (rake cap 4bb there, 3bb here; 4% rake there, 5% here; no rake when no flop is dealt there; only its tables without antes).

Close: WPT Global cash NL400, NL600, NL1000 (rake cap 2bb there, 3bb here; 4% rake there, 5% here; no rake when no flop is dealt there; only its tables without antes).

Close: Natural8 regular cash NL100 (rake cap 5bb there, 3bb here).

Close: ACR Poker cash NL50 (rake cap 6bb there, 3bb here; its page does not say whether pots that end before the flop are raked).

Close: ACR Poker cash NL100 (its page does not say whether pots that end before the flop are raked).

Close: ACR Poker cash NL200 (rake cap 1.5bb there, 3bb here; its page does not say whether pots that end before the flop are raked).

CoinPoker tables with antes: their own chart.

Rake sources: ggpoker.com/poker-games/texas-holdem (fetched 2026-10-31); Rush rake and preflop rake confirmed on our own GG exports (972 of 1,034 pots, 210 of 211); regular tables' preflop rule from natural8.com/en/poker/texas-holdem (same network, fetched 2026-10-31); natural8.com/en/poker/rush-and-cash (fetched 2026-10-31; caps $0.06 to $6, 3bb at every stake); the same GGNetwork pools as GGPoker, whose preflop rake we confirmed on GG exports; natural8.com/en/poker/texas-holdem (fetched 2026-10-31; caps by players dealt in, 3-bet pots raked before the flop); pokerstars.com/poker/room/rake (fetched 2026-10-31); coinpoker.com/games/texas-holdem/ (caps and the preflop rule) and coinpoker.com/guides/poker-rake/ (5%), fetched 2026-10-31; wptglobal.com/poker/poker-table-rake (fetched 2026-10-31); acrpoker.eu/real-money/poker-rake-calculation/ (fetched 2026-10-31).