PokerSolver/4-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/SB vs BTN 3-bet 4bb

SB vs BTN 3-bet 4bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · BTN limps, SB isolates to 2bb, BTN 3-bets to 4bb · Small blind to act

Fits exactlyno game we have checked

Close1 games

CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here

4-max · 80bb · 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

1bb

4bb

Tap your two cards.

Small blind's range

508 of 1,326 combos get here

Fold 37.1%Call 35.5%Raise 9.2bb 16.1%All-in 79.84bb 11.3%

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

What is the GTO play for the small blind (SB) when BTN limps, SB isolates to 2bb, BTN 3-bets to 4bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 80bb?

BTN limps, SB isolates to 2bb, BTN 3-bets to 4bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 80bb: the small blind (SB) folds 37.1%, calls 35.5%, raises 9.2bb 16.1% and goes all-in 79.84bb 11.3%. Always call: 88, 33, K8s, K5s, Q9s, 64s+. Always raise 9.2bb: AA. Mixed: 99-KK, 55-77, A2s+, K9s+, K6s-K7s, K3s-K4s, QTs+, Q6s-Q8s, Q3s, J6s+, T7s+, 98s, 86s+, 75s+, 53s, 43s, A9o+, A7o, A4o-A5o, KTo+, QTo+, JTo.

Always fold: J4s, 96s-97s, 54s, Q9o, T9o
Always call: 88, 33, K8s, K5s, Q9s, 64s+
Always raise 9.2bb: AA
Always all-in 79.84bb: No hand plays this every time
Mixed: 99-KK, 55-77, A2s+, K9s+, K6s-K7s, K3s-K4s, QTs+, Q6s-Q8s, Q3s, J6s+, T7s+, 98s, 86s+, 75s+, 53s, 43s, A9o+, A7o, A4o-A5o, KTo+, QTo+, JTo

Settings: 4-max · 80bb · 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, 80bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.98). 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.

Rake sources for the games it fits: 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.