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

SB vs BTN 3-bet 5bb

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 2.5bb, BTN 3-bets to 5bb · 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 9.14bbYour cards?

2.5bb

1bb

5bb

Tap your two cards.

Small blind's range

492 of 1,326 combos get here

Fold 43.2%Call 31.7%Raise 11.5bb 15.9%All-in 79.84bb 9.1%

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 2.5bb, BTN 3-bets to 5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 80bb?

BTN limps, SB isolates to 2.5bb, BTN 3-bets to 5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 80bb: the small blind (SB) folds 43.2%, calls 31.7%, raises 11.5bb 15.9% and goes all-in 79.84bb 9.1%. Always call: K9s, QTs+, 98s. Always raise 11.5bb: AA. Mixed: 55-KK, A3s+, KTs+, K6s-K8s, K4s, Q6s-Q9s, J6s+, T7s+, 96s-97s, 86s+, 75s+, 64s+, 54s, A9o+, A5o, KTo+, QJo, Q9o, JTo.

Always fold: K5s, 43s, QTo, T9o
Always call: K9s, QTs+, 98s
Always raise 11.5bb: AA
Always all-in 79.84bb: No hand plays this every time
Mixed: 55-KK, A3s+, KTs+, K6s-K8s, K4s, Q6s-Q9s, J6s+, T7s+, 96s-97s, 86s+, 75s+, 64s+, 54s, A9o+, A5o, KTo+, QJo, Q9o, 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.