PokerSolver/6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BTN vs BB 3-bet 5bb

BTN vs BB 3-bet 5bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 20bb · BTN opens 2.5bb, BB 3-bets to 5bb · Button to act

6-max · 20bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differUTGHJCOBTNSBBB

Pot 8.96bbYour cards?

2.5bb

0.5bb

5bb

Tap your two cards.

Button's range

606 of 1,326 combos get here

Fold 32.4%Call 39.9%All-in 19.84bb 27.6%

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 in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 20bb?

BTN opens 2.5bb, BB 3-bets to 5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 20bb: the button (BTN) folds 32.4%, calls 39.9% and goes all-in 19.84bb 27.6%. Always call: AA, A7s-A8s, K7s, K3s, QTs+, Q4s, J7s+, T8s+, 75s, A7o-A8o, KQo, KTo, QJo, JTo. Always all-in 19.84bb: TT-QQ, 88, 55, AKs, A5s-A6s, KQs, AJo+, A5o. Mixed: KK, 66-77, 44, A9s-AQs, KTs-KJs, K8s, K5s-K6s, K2s, Q6s, J4s-J5s, T7s, 96s, A9o-ATo, A6o, A3o-A4o, K9o, J9o, T9o.

Always fold: Q2s-Q3s, J6s, T5s-T6s, A2o, K5o-K8o, Q8o-Q9o, J8o, T8o, 98o
Always call: AA, A7s-A8s, K7s, K3s, QTs+, Q4s, J7s+, T8s+, 75s, A7o-A8o, KQo, KTo, QJo, JTo
Always all-in 19.84bb: TT-QQ, 88, 55, AKs, A5s-A6s, KQs, AJo+, A5o
Mixed: KK, 66-77, 44, A9s-AQs, KTs-KJs, K8s, K5s-K6s, K2s, Q6s, J4s-J5s, T7s, 96s, A9o-ATo, A6o, A3o-A4o, K9o, J9o, T9o

Settings: 6-max · 20bb · 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, 20bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.9). 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.