PokerSolver
PokerSolver/4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/SB vs BTN 3-bet 9bb

SB vs BTN 3-bet 9bb

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 3bb, BTN 3-bets to 9bb · Small blind to act

4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 13.64bbYour cards?
3bb
1bb
9bb

Tap your two cards.

Small blind's range

558 of 1,326 combos get here
Fold 70.3%Call 14.4%Raise 20.7bb 12.2%All-in 149.84bb 3.1%
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 3bb, BTN 3-bets to 9bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 150bb?

BTN limps, SB isolates to 3bb, BTN 3-bets to 9bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 150bb: the small blind (SB) folds 70.3%, calls 14.4%, raises 20.7bb 12.2% and goes all-in 149.84bb 3.1%. Always raise 20.7bb: AA. Mixed: 55-KK, 33, A2s+, K8s+, K6s, K4s, QTs+, Q8s, Q4s, JTs, J7s, J4s, 98s, 86s, 75s+, 64s+, ATo+, KQo, KTo.

Always fold
K7s, K5s, K2s-K3s, Q9s, Q5s-Q7s, Q2s, J8s-J9s, J5s, T9s, T7s, 97s, 87s, 63s, 53s+, 43s, A7o-A9o, A5o, KJo, K9o, QTo+, JTo, 98o
Always call
No hand plays this every time
Always raise 20.7bb
AA
Always all-in 149.84bb
No hand plays this every time
Mixed
55-KK, 33, A2s+, K8s+, K6s, K4s, QTs+, Q8s, Q4s, JTs, J7s, J4s, 98s, 86s, 75s+, 64s+, ATo+, KQo, KTo
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.