PokerSolver/4-max · 150bb · 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) · 150bb · BTN limps, SB isolates to 2.5bb, BTN 3-bets to 5bb · Small blind 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 9.14bbYour cards?

2.5bb

1bb

5bb

Tap your two cards.

Small blind's range

566 of 1,326 combos get here

Fold 34.1%Call 47.4%Raise 11.5bb 13.9%All-in 149.84bb 4.7%

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 150bb?

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, 150bb: the small blind (SB) folds 34.1%, calls 47.4%, raises 11.5bb 13.9% and goes all-in 149.84bb 4.7%. Always call: 99-TT, 66, 22-44, AJs, A6s-A7s, A2s, K5s-K6s, Q9s, Q7s, J7s, 65s. Always raise 11.5bb: AKs. Mixed: JJ+, 77-88, 55, AQs, A8s-ATs, A3s-A5s, K7s+, K2s-K3s, QTs+, Q8s, Q6s, Q2s-Q4s, J8s+, T7s+, 95s+, 85s+, 74s+, 64s, 52s-53s, 43s, A8o+, A5o, K9o+, QTo+, JTo, 65o.

Always fold: 63s, A7o, T9o
Always call: 99-TT, 66, 22-44, AJs, A6s-A7s, A2s, K5s-K6s, Q9s, Q7s, J7s, 65s
Always raise 11.5bb: AKs
Always all-in 149.84bb: No hand plays this every time
Mixed: JJ+, 77-88, 55, AQs, A8s-ATs, A3s-A5s, K7s+, K2s-K3s, QTs+, Q8s, Q6s, Q2s-Q4s, J8s+, T7s+, 95s+, 85s+, 74s+, 64s, 52s-53s, 43s, A8o+, A5o, K9o+, QTo+, JTo, 65o

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.