PokerSolver/4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BTN vs SB 3-bet 4bb

BTN vs SB 3-bet 4bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · BTN opens 2bb, SB 3-bets to 4bb · Button to act

4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 7.64bbYour cards?

2bb

4bb

1bb

Tap your two cards.

Button's range

678 of 1,326 combos get here

Fold 0.3%Call 86.2%Raise 9.2bb 12.6%All-in 149.84bb 0.9%

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

What is the GTO play for the button (BTN) when BTN opens 2bb, SB 3-bets to 4bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 150bb?

BTN opens 2bb, SB 3-bets to 4bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 150bb: the button (BTN) folds 0.3%, calls 86.2%, raises 9.2bb 12.6% and goes all-in 149.84bb 0.9%. Always call: 99, 33-66, A4s-A6s, A2s, K3s-K8s, Q3s-Q7s, J6s-J7s, J3s-J4s, T6s-T7s, T4s, 95s+, 85s+, 74s+, 64s+, 53s+, 43s, A7o-AJo, A5o, K6o-KJo, Q9o+, J8o+, T8o+, 98o, 87o, 76o. Always raise 9.2bb: JJ+, AQo. Mixed: TT, 77-88, A7s-AJs, A3s, K9s+, Q8s, JTs, J8s, T8s+, AKo, KQo.

Always fold: No hand plays this every time
Always call: 99, 33-66, A4s-A6s, A2s, K3s-K8s, Q3s-Q7s, J6s-J7s, J3s-J4s, T6s-T7s, T4s, 95s+, 85s+, 74s+, 64s+, 53s+, 43s, A7o-AJo, A5o, K6o-KJo, Q9o+, J8o+, T8o+, 98o, 87o, 76o
Always raise 9.2bb: JJ+, AQo
Always all-in 149.84bb: No hand plays this every time
Mixed: TT, 77-88, A7s-AJs, A3s, K9s+, Q8s, JTs, J8s, T8s+, AKo, KQo

Settings: 4-max · 150bb · 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, 150bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.5). 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.